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  d a t a sh eet product speci?cation supersedes data of 1998 jun 11 file under integrated circuits, ic03 1999 apr 08 integrated circuits TEA1099h speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer
1999 apr 08 2 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h features line interface low dc line voltage voltage regulator with adjustable dc voltage symmetrical high impedance inputs (70 k w ) for dynamic, magnetic or electret microphones dual tone multi-frequency (dtmf) input with confidence tone on earphone and/or loudspeaker receive amplifier for dynamic, magnetic or piezo-electric earpieces (with externally adjustable gain) agc: automatic gain control for true line loss compensation. supplies provides a strong 3.35 v regulated supply for microcontroller or dialler provides filtered power supply, optimized according to line current and compatible with external voltage or current sources filtered 2.0 v power supply output for electret microphone compatible with a ringer mode power-down ( pd) logic input for power-down. handsfree asymmetrical high-impedance input for electret microphone loudspeaker amplifier with single-ended rail-to-rail output and externally adjustable gain dynamic limiter on loudspeaker amplifier to prevent distortion logarithmic volume control on loudspeaker amplifier via linear potentiometer duplex controller consisting of: C signal and noise envelope monitors for both channels (with adjustable sensitivities and timing) C decision logic (with adjustable switch-over and idle mode timing) C voice switch control (with adjustable switching range and constant sum of gain during switching). auxiliary interfaces general auxiliary output for transmit and receive purposes auxiliary transmit input with high signal level capability dedicated to line transmission auxiliary receive input with high signal level capability integrated multiplexer for channels selection. applications line powered telephone sets cordless telephones fax machines answering machines. general description the TEA1099h is an analog bipolar circuit dedicated for telephone applications. it includes a line interface, handset (hs) microphone and earpiece amplifiers, handsfree (hf) microphone and loudspeaker amplifiers, some specific auxiliary inputs/outputs (i/os) and an analog multiplexer to enable the right transmit and/or receive channels. the multiplexer is controlled by a logic circuit which decodes four logic inputs provided by a microcontroller. thirteen different application modes have been defined and can be accessed by selecting the right logic inputs. an application mode is a special combination of transmit and receive channels required by telephone applications. this ic can be supplied by the line and/or by the mains if available (in a cordless telephone or an answering machine for example). it provides a 3.35 v supply for a microcontroller or dialler and a 2.0 v filtered voltage supply for an electret microphone. the ic is designed to facilitate the use of the loudspeaker amplifier during ringing phase.
1999 apr 08 3 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h quick reference data i line = 15 ma; r slpe =20 w ; z line = 600 w ; f = 1 khz; t amb =25 c; agc pin connected to ln; pd = high; hfc = low; auxc = low; mutt = high; mutr = high; measured according to test circuits; unless otherwise speci?ed. ordering information symbol parameter conditions min. typ. max. unit i line line current operating range normal operation 11 - 140 ma with reduced performance 1 - 11 ma v slpe stabilized voltage between slpe and gnd (v ref ) i line = 15 ma 3.4 3.7 4.0 v i line = 70 ma 5.7 6.1 6.5 v v bb regulated supply voltage for internal circuitry i line = 15 ma 2.75 3.0 3.25 v i line = 70 ma 4.9 5.3 5.7 v v dd regulated supply voltage on pin v dd v bb > 3.35 v + 0.25 v (typ) 3.1 3.35 3.6 v otherwise - v bb - 0.25 - v v esi external voltage supply allowed on pin esi -- 6v i esi(ext) external current supply allowed on pin esi -- 140 ma i bb current available on pin v bb speech mode - 11 - ma handsfree mode - 9 - ma i bb(pd) current consumption on v bb during power-down phase pd = low - 460 -m a g v(mic-ln) voltage gain from pin mic+/mic - to ln v mic = 5 mv (rms) 43.3 44.3 45.3 db g v(ir-reco) voltage gain from pin ir (referenced to ln) to reco v ir = 15 mv (rms) 28.7 29.7 30.7 db d g v(qr) gain voltage range between pins reco and qr - 3 - +15 db g v(txin-txout) voltage gain from pin txin to txout v txin = 3 mv (rms); r gatx = 30.1 k w 12.7 15.2 17.7 db g v(hftx-ln) voltage gain from pin hftx to ln v hftx = 15 mv (rms) 33.5 34.7 35.9 db g v(hfrx-lsao) voltage gain from pin hfrx to lsao v hfrx = 20 mv (rms); r gals = 255 k w 25.5 28 30.5 db swra switching range - 40 - db d swra switching range adjustment with r swr referenced to 365 k w - 40 - +12 db d g v(trx) gain control range for transmit and receive ampli?ers affected by the agc; with respect to i line =15ma i line = 70 ma; on g v(mic-ln) , g v(ir-reco) and g v(ir-auxo) 5.45 6.45 7.45 db type number package name description version TEA1099h qfp44 plastic quad ?at package; 44 leads (lead length 1.3 mm); body 10 10 1.75 mm sot307-2
1999 apr 08 4 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h block diagram fig.1 block diagram. handbook, full pagewidth mgm296 line current detection low voltage behaviour tx and rx envelope and noise detectors supply management switch starter agc att. att. gnd v bb esi v dd 19 mics pd 10 9 20 38 agc ln 13 18 15 reg slpe 16 14 tail currents for preamps hftx 36 tsen 4 tenv 3 tnoi 2 rnoi 5 renv 7 rsen 6 lsao 12 dlc 8 gals 11 txaux 43 mic + 31 mic - 30 dtmf 32 power-down current sources analog multiplexer control buffers and comparators dynamic limiter duco logic swt status voice switch volume control hfc 37 mutt 39 mutr 40 auxc 41 gatx 27 txout 26 swt 24 idt 25 stab 21 swr 22 vol 23 hfrx 1 ir 17 raux 42 gndtx 29 txin 28 auxo 44 reco 35 qr 33 garx 34 TEA1099h d6
1999 apr 08 5 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h pinning symbol pin description hfrx 1 receive input for loudspeaker ampli?er or auxiliary receive ampli?er tnoi 2 transmit noise envelope timing adjustment tenv 3 transmit signal envelope timing adjustment tsen 4 transmit signal envelope sensitivity adjustment rnoi 5 receive noise envelope timing adjustment rsen 6 receive signal envelope sensitivity adjustment renv 7 receive signal envelope timing adjustment dlc 8 dynamic limiter capacitor for the loudspeaker ampli?er esi 9 external supply input v bb 10 stabilized supply for internal circuitry gals 11 loudspeaker ampli?er gain adjustment lsao 12 loudspeaker ampli?er output gnd 13 ground reference slpe 14 line current sense ln 15 positive line terminal reg 16 line voltage regulator decoupling ir 17 receive ampli?er input agc 18 automatic gain control/line loss compensation v dd 19 3.35 v regulated voltage supply for the microcontroller mics 20 microphone supply output stab 21 reference current adjustment swr 22 switching range adjustment vol 23 loudspeaker volume adjustment swt 24 switch-over timing adjustment idt 25 idle mode timing adjustment txout 26 hf microphone ampli?er output gatx 27 hf microphone ampli?er gain adjustment txin 28 hf microphone ampli?er input gndtx 29 ground reference for microphone ampli?ers mic - 30 negative hs microphone ampli?er input mic+ 31 positive hs microphone ampli?er input dtmf 32 dual tone multi-frequency input qr 33 earpiece ampli?er output garx 34 earpiece ampli?er gain adjustment reco 35 receive ampli?er output hftx 36 transmit input for line ampli?er or auxiliary receive ampli?er hfc 37 logic input pd 38 power-down input (active low) mutt 39 logic input (active low) mutr 40 logic input (active low) auxc 41 logic input raux 42 auxiliary receive ampli?er input txaux 43 auxiliary transmit ampli?er input auxo 44 auxiliary ampli?er output symbol pin description
1999 apr 08 6 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.2 pin configuration. handbook, full pagewidth 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 TEA1099h mgm297 qr dtmf mic + mic - txin gatx txout idt swt vol hfrx tnoi tenv tsen rnoi rsen dlc esi gals gndtx txaux raux auxc mutr mutt pd hftx reco garx auxo hfc gnd slpe ln reg ir agc mics stab swr lsao v dd renv v bb functional description all data given in this chapter are typical values, except when otherwise specified. supplies l ine interface and internal supply ( pins ln, slpe, reg and v bb ) the supply for the TEA1099h and its peripherals is obtained from the line. the ic generates a stabilized reference voltage (v ref ) between pins slpe and gnd. this reference voltage is equal to 3.7 v for line currents lower than 18 ma. it than increases linearly with the line current and reaches the value of 6.1 v for line currents higher than 45 ma. for line currents below 9 ma, the internal reference voltage generating v ref is automatically adjusted to a lower value. this is the so-called low voltage area and the TEA1099h has limited performances in this area (see section low voltage behaviour). this reference voltage is temperature compensated. the voltage between pins slpe and reg is used by the internal regulator to generate the stabilized reference voltage and is decoupled by means of a capacitor between pins ln and reg. this capacitor converted into an equivalent inductance realizes the set impedance conversion from its dc value (r slpe ) to its ac value (done by an external impedance). the ic regulates the line voltage at pin ln and it can be calculated as follows: where: i line = line current i x = current consumed on pin ln (approximately a few m a) i slpe = current flowing through the r slpe resistor v ln v ref r slpe i + slpe = i slpe i line i x C =
1999 apr 08 7 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h the preferred value for r slpe is 20 w . changing this value will affect more than the dc characteristics; it also influences the transmit gains to the line, the gain control characteristic, the sidetone level and the maximum output swing on the line. as can be seen from fig.3, the internal circuitry is supplied by pin v bb , which is a strong supply point combined with the line interface. the line current is flowing through the r slpe resistor and is sunk by the v bb voltage stabilizer, becoming available for a loudspeaker amplifier or any peripheral ic. its voltage is equal to 3.0 v for line currents lower than 18 ma. it than increases linearly with the line current and reaches the value of 5.3 v for line currents greater than 45 ma. it is temperature compensated. see fig.4 for the main dc voltages. the aim of the current switch tr1 and tr2 is to reduce distortion of large ac line signals. current i slpe is supplied to v bb via tr1 when the voltage on slpe is greater than v bb + 0.25 v. when the voltage on slpe is lower than this value, the current i slpe is shunted to gnd via tr2. the reference voltage v ref can be increased by connecting an external resistor between pins reg and slpe. for large line currents, this increase can slightly affect some dynamic performances such as maximum signal level on the line for 2% total harmonic distortion (thd). the voltage on pin v bb is not affected by this external resistor. fig.3 line interface principle. handbook, full pagewidth mgm298 tn2 tr2 tr1 e2 d1 d1 r3 r2 r1 tn1 tp1 j2 j1 e1 gnd gnd v bb from preamp gnd reg ln slpe c reg 4.7 m f r slpe 20 w
1999 apr 08 8 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.4 main dc voltages. handbook, full pagewidth 0.07 0.06 8 6 2 0 0 0.01 voltages (v) 0.02 0.05 mics v dd v bb slpe ln i line (a) 0.04 0.03 4 fca049 e xternal supply ( pins esi and v bb ) the TEA1099h can be supplied by the line as well as by external power sources (voltage or current sources) that must be connected to pin esi. the ic will choose which supply to use according to the voltage it can provide. a voltage supply on esi is efficient only if its value is greater than the working voltage of the internal v bb voltage stabilizer. otherwise the ic continues to be line powered. the current consumed on this source is at least equal to the internal consumption. it increases with the voltage difference between the value forced on esi and the working voltage of the internal stabilizer. the excess current compared to the internal consumption becomes then available for other purposes such as supplying a loudspeaker amplifier. the voltage source should not exceed 6 v. if the value of the external voltage source can be lower than the working voltage of the internal stabilizer, an external diode is required to avoid reverse current flowing into the external power supply. in case of current source, the voltage on v bb and esi depends on the current available. it is internally limited to 6.6 v. the current source should not exceed 140 ma. v dd supply for microcontroller ( pin v dd ) the voltage on v dd supply point follows the voltage on v bb with a difference typically equal to 250 mv and is internally limited to 3.35 v. this voltage is temperature compensated. this supply point can provide a current up to 3 ma typically. its internal consumption stays low (a few 10 na) as long as v dd does not exceed 1.5 v (see fig.5). an external voltage can be connected on v dd with limited extra consumption on v dd (typically 100 m a). this voltage source should not be lower than 3.5 v or higher than 6 v. v bb and v dd can supply external circuits in the limit of currents provided either from the line or from esi, taking into account the internal current consumption.
1999 apr 08 9 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.5 current consumption on v dd . handbook, full pagewidth 1.0 i dd (pa) 1.5 2.5 3.0 v dd (v) 2.0 10 8 10 7 10 6 10 5 10 4 10 3 10 2 10 fca050 s upply for microphone ( pins mics and gndtx) the mics output can be used as a supply for electret microphones. its voltage is equal to 2.0 v; it can source current up to 1 ma and has an output impedance equal to 200 w . l ow voltage behaviour for line currents below 9 ma, the reference voltage is automatically adjusted to a lower value; the v bb voltage follows the slpe voltage with 250 mv difference. the excess current available for other purposes than dc biasing of the ic becomes small. in this low voltage area, the ic has limited performances. when the v bb voltage reaches 2.7 v, the v bb detector of the receive dynamic limiter on lsao acts and discharges the dlc capacitor. the loudspeaker is then automatically disabled below this dc voltage. when v bb becomes lower than 2.5 v, the TEA1099h is forced into a low voltage mode whatever the levels on the logic inputs are. it is a speech mode with reduced performances only enabling the microphone channel (between the mic inputs and ln) and the earpiece amplifier. these two channels are able to deliver signals for line currents as small as 3 ma. the hfc input is tied to gnd sinking a current typically equal to 300 m a. p ower - down mode ( pins pd and auxc) to reduce current consumption during dialling or register recall (flash), the TEA1099h is provided with a power-down input ( pd). when the voltage on both pins pd and auxc is low, the current consumption from v bb and v dd is reduced to 460 m a typically. therefore a capacitor of 470 m f on v bb is sufficient to power the TEA1099h during pulse dialling or flash. the pd input has a pull-up structure, while auxc has a pull-down structure. in this mode, the capacitor c reg is internally disconnected. r inger mode ( pins esi, v bb , auxc and pd) the TEA1099h is designed to be activated during the ringing phase. the loudspeaker amplifier can be used for the ringing signal. the ic must be powered by an external supply on esi, while applying a high level on the logic input auxc and a low level on pd input. only the hfrx input and the lsao output are activated, in order to limit the current consumption. some dynamic limitation is provided to prevent the lsao output from saturation and v bb from being discharged below 2.7 v.
1999 apr 08 10 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h transmit channels (pins mic+, mic - , dtmf, txaux, hftx and ln) h andset microphone amplifier ( pins mic+, mic - and ln) the TEA1099h has symmetrical microphone inputs. the input impedance between mic+ and mic - is 70 k w( typ. ) . the voltage gain between pins mic+/mic - and ln is set to 44.3 db. without limitation from the output, the microphone input stage can accommodate signals up to 18 mv (rms) at room temperature for 2% of thd. the microphone inputs are biased at one diode voltage. automatic gain control is provided for line loss compensation. dtmf amplifier ( pins dtmf, ln and reco) the TEA1099h has an asymmetrical dtmf input. the input impedance between dtmf and gnd is 20 k w (typ.). the voltage gain between pins dtmf and ln is set to 25.35 db. without limitation from the output, the input stage can accommodate signals up to 180 mv (rms) at room temperature for 2% of thd. when the dtmf amplifier is enabled, dialling tones may be sent on the line. these tones can be heard in the earpiece or in the loudspeaker at a low level. this is called the confidence tone. the voltage attenuation between pins dtmf and reco is typically equal to - 16.5 db. the dc biasing of this input is 0 v. the automatic gain control has no effect on these channels. a uxiliary transmit amplifier ( pins txaux and ln) the TEA1099h has an asymmetrical auxiliary input txaux. the input impedance between txaux and gnd is 20 k w (typ.). the voltage gain between pins txaux and ln is set to 12.5 db. without limitation from the output, the input stage can accommodate signals up to 1.2 v (rms) at room temperature for 2% of thd. the txaux input is biased at two diodes voltage. automatic gain control is provided for line loss compensation. h andsfree transmit output stage ( pins hftx and ln) the TEA1099h has an asymmetrical hftx input, which is mainly intended for use in combination with the txout output. the input impedance between hftx and gnd is 20 k w (typ.). the voltage gain between pins hftx and ln is set to 34.7 db. without limitation from the output, the input stage can accommodate signals up to 95 mv (rms) at room temperature for 2% of thd. the hftx input is biased at two diodes voltage. automatic gain control is provided for line loss compensation. m icrophone monitoring on txout ( pins mic+, mic - and txout) the voltage gain between the microphone inputs mic+/mic - and the output txout is set to 49.8 db. this channel gives an image of the signal sent on the line while speaking in the handset microphone. using external circuitry, this signal can be used for several purposes such as sending dynamic limitation or anti-howling in a listening-in application. the txout output is biased at two diodes voltage. the automatic gain control has no effect on these channels. receive channels (pins ir, raux, reco, garx and qr) rx amplifier ( pins ir and reco) the receive amplifier has one input ir which is referred to the line. the input impedance between pins ir and ln is 20 k w (typ.) and the dc biasing between these pins is equal to one diode voltage. the gain between pins ir (referred to ln) and reco is typically equal to 29.7 db. without limitation from the output, the input stage can accommodate signals up to 50 mv (rms) at room temperature for 2% of thd. this receive amplifier has a rail-to-rail output reco, which is designed for use with high ohmic (real) loads (larger than 5 k w ). this output is biased at two diodes voltage. automatic gain control is provided for line loss compensation.
1999 apr 08 11 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h e arpiece amplifier ( pins garx and qr) the earpiece amplifier is an operational amplifier having its output (qr) and its inverting input (garx) available. its input signal comes, via a decoupling capacitor, from the receive reco output. it is used in combination with two resistors to get the required gain or attenuation compared to the receive gain. it can be chosen between - 3 and +15 db. two external capacitors c gar (connected between garx and qr) and c gars (connected between garx and gnd) ensure stability. the c gar capacitor provides a 1st-order low-pass filter. the cut-off frequency corresponds to the time constant c gar r e2 . the relationship c gars 3 10 c gar must be fulfilled. the earpiece amplifier has a rail-to-rail output qr, biased at two diodes voltage. it is designed for use with low ohmic (real) loads (150 w ) or capacitive loads (100 nf in series with 100 w ). a uxiliary receive amplifier ( pins raux and reco) the auxiliary receive amplifier has an asymmetrical input raux; it uses the reco output. its input impedance between pins raux and gnd is typically equal to 20 k w . the voltage gain between pins raux and reco is equal to - 2.4 db. without any limitation from the output, the input stage can accommodate signals up to 0.95 v (rms) at room temperature for 2% of thd. this auxiliary amplifier has a rail-to-rail output reco, which is designed for use with high ohmic (real) loads (larger than 5 k w ). this output is biased at two diodes voltage. the automatic gain control has no effect on this channel. auxiliary ampli?ers using auxo (pins mic+, mic - , hftx, ir and auxo) the TEA1099h has an auxiliary output auxo, biased at two diodes voltage. this output stage is a rail-to-rail one, designed for use with high ohmic (real) loads (larger than 5k w ). the auxo output amplifier is used in three different channels, two transmit channels and one receive channel. a uxiliary amplifiers using the microphone inputs ( pins mic+, mic - and auxo) the auxiliary transmit amplifier using the microphone mic+ and mic - inputs has a gain of 25.5 db referenced to auxo. without limitation from the output, the input stage can accommodate signals up to 16 mv (rms) at room temperature for 2% of thd. the automatic gain control has no effect on this channel. a uxiliary amplifiers using hftx ( pins hftx and auxo) the auxiliary transmit amplifier using the hftx input has a gain of 15.2 db referenced to auxo. the automatic gain control has no effect on this channel. rx amplifier using ir ( pins ir and auxo) the auxiliary receive amplifier uses pin ir as input. the input is referred to ln and the dc biasing between these two pins is one diode voltage. the voltage gain between the input ir (referenced to ln) and the output auxo is typically equal to 32.8 db, which compensates typically the attenuation provided by the anti-sidetone network. automatic gain control is provided for line loss compensation. agc (pin agc) the TEA1099h performs automatic line loss compensation, which fits well with the true line attenuation. the automatic gain control varies the gain of some transmit and receive amplifiers in accordance with the dc line current. the control range is 6.45 db for g v(mic-ln) , g v(ir-reco) and g v(ir-auxo) and 6.8 db for the other affected channels, which corresponds approximately to a line length of 5.5 km for a 0.5 mm twisted-pair copper cable. to enable this gain control, the agc pin must be shorted to pin ln. the start current for compensation corresponds to a line current equal to typically 23 ma and the stop current to 57 ma. the start current can be increased by connecting an external resistor between pins agc and ln. it can be increased up to 40 ma (using a resistor typically equal to 80 k w ). the start and stop current will be maintained in a ratio equal to 2.5. by leaving the agc pin open-circuit, the gain control is disabled and no line loss compensation is performed.
1999 apr 08 12 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h handsfree application as can be seen from fig.3, a loop is formed via the sidetone network in the line interface part and the acoustic coupling between loudspeaker and microphone of the handsfree part. when this loop gain is greater than 1, howling occurs. in a full duplex application, this would be the case. the loop-gain has to be much lower than 1 and therefore has to be decreased to avoid howling. this is achieved by the duplex controller. the duplex controller of the TEA1099h detects which channel has the largest signal and then controls the gain of the microphone amplifier and the loudspeaker amplifier so that the sum of the gains remains constant. as a result, the circuit in this handsfree application can be in three stable modes: 1. transmit mode (tx mode). the gain of the microphone amplifier is at its maximum and the gain of the loudspeaker amplifier is at its minimum. 2. receive mode (rx mode). the gain of the loudspeaker amplifier is at its maximum and the gain of the microphone amplifier is at its minimum. 3. idle mode. the gain of the amplifiers is halfway between their maximum and minimum value. the difference between the maximum gain and minimum gain is called the switching range. h andsfree microphone channel : pins txin, gatx, txout and gndtx (see fig.7) the TEA1099h has an asymmetrical handsfree microphone input txin with an input resistance of 20 k w . the dc biasing of the input is 0 v. the gain of the input stage varies according to the mode of the TEA1099h. in the transmit mode, the gain is at its maximum; in the receive mode, it is at its minimum and in the idle mode it is halfway between maximum and minimum. switch-over from one mode to the other is smooth and click-free. the output txout is biased at two diodes voltage and has a current capability equal to 20 m a (rms). in the transmit mode, the overall gain of the microphone amplifier (from pins txin to txout) can be adjusted from 0 up to 31 db to suit specific application requirements. the gain is proportional to the value of r gatx and equals 15.2 db with r gatx = 30.1 k w . without limitation from the output, the microphone input stage can accommodate signals up to 18 mv (rms) at room temperature for 2% of thd. fig.6 handsfree telephone set principles. handbook, full pagewidth mgm299 duplex control hybrid telephone line sidetone acoustic coupling
1999 apr 08 13 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.7 handsfree microphone channel. handbook, full pagewidth mgm300 v i i v c mic v bb r mic txin from voice switch to envelope detector gndtx txout gatx 27 28 26 29 r gatx l oudspeaker channel fig.8 loudspeaker channel. handbook, full pagewidth mgm301 dynamic limiter volume control i v v i dlc lsao gals vol hfrx 11 12 8 1 23 v bb r gals c gals c lsao c dlc r vol to logic to/from voice switch to envelope detector
1999 apr 08 14 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h loudspeaker ampli?er: pins hfrx, gals and lsao the TEA1099h has an asymmetrical input for the loudspeaker amplifier with an input resistance of 20 k w between pins hfrx and gnd. it is biased at two diodes voltage. without limitation from the output, the input stage can accommodate signals up to 580 mv (rms) at room temperature for 2% of thd. the gain of the input stage varies according to the mode of the TEA1099h. in the receive mode, the gain is at its maximum; in the transmit mode, it is at its minimum and in the idle mode, it is halfway between maximum and minimum. switch-over from one mode to the other is smooth and click-free. the rail-to-rail output stage is designed to power a loudspeaker connected as a single-ended load (between pins lsao and gnd). in the receive mode, the overall gain of the loudspeaker amplifier can be adjusted from 0 up to 35 db to suit specific application requirements. the gain from hfrx to lsao is proportional to the value of r gals and equals 28 db with r gals = 255 k w . a capacitor connected in parallel with r gals is recommended and provides a 1st-order low-pass filter. volume control: pin vol the loudspeaker amplifier gain can be adjusted with the potentiometer r vol . a linear potentiometer can be used to obtain logarithmic control of the gain at the loudspeaker amplifier. each 1.9 k w increase of r vol results in a gain loss of 3 db. the maximum gain reduction with the volume control is internally limited to the switching range. dynamic limiter: pin dlc the dynamic limiter of the TEA1099h prevents clipping of the loudspeaker output stage and protects the operation of the circuit when the supply voltage at v bb falls below 2.7 v. hard clipping of the loudspeaker output stage is prevented by rapidly reducing the gain when the output stage starts to saturate. the time in which gain reduction is effected (clipping attack time) is approximately a few milliseconds. the circuit stays in the reduced gain mode until the peaks of the loudspeaker signal no longer cause saturation. the gain of the loudspeaker amplifier then returns to its normal value within the clipping release time (typically 250 ms). both attack and release times are proportional to the value of the capacitor c dlc . the total harmonic distortion of the loudspeaker output stage, in reduced gain mode, stays below 2% up to 10 db (minimum) of input voltage overdrive [providing v hfrx is below 580 mv (rms)]. when the supply voltage drops below an internal threshold voltage of 2.7 v, the gain of the loudspeaker amplifier is rapidly reduced (approximately 1 ms). when the supply voltage exceeds 2.7 v, the gain of the loudspeaker amplifier is increased again. by forcing a level lower than 0.2 v on pin dlc, the loudspeaker amplifier is muted and the TEA1099h is automatically forced into the transmit mode. rx ampli?er using auxo in some cordless applications, the handset may be used to perform handsfree function (instead of the base). as the TEA1099h is in the base and the active loudspeaker is in the handset, a second receive output is required. the amplifier using hfrx as an input and auxo as an output will be used for communication with the rf ic, sending information to the handset. it will be controlled by the duplex controller in the same way as the loudspeaker amplifier. the voltage gain between pins hfrx and auxo is equal to 3.7 db. the amplifier can manage the same input signal as the loudspeaker amplifier. it has a rail-to-rail output, biased by two diodes, designed for use with high ohmic (real) loads (larger than 5 k w ). the volume control and the dynamic limiter are not active on this channel. d uplex controller signal and noise envelope detectors: pins tsen, tenv, tnoi, rsen, renv and rnoi the signal envelopes are used to monitor the signal level strength in both channels. the noise envelopes are used to monitor background noise in both channels. the signal and noise envelopes provide inputs for the decision logic. the signal and noise envelope detectors are shown in fig.9. for the transmit channel, the input signal at txin is 40 db amplified to tsen. for the receive channel, the input signal at hfrx is 0 db amplified to rsen. the signals from tsen and rsen are logarithmically compressed and buffered to tenv and renv respectively. the sensitivity of the envelope detectors is set with r tsen and r rsen . the capacitors connected in series with the two resistors block any dc component and form a 1st-order high-pass filter. in the basic application (see fig.16) it is assumed that v txin = 1 mv (rms) and v hfrx = 100 mv (rms) nominal and both r tsen and r rsen have a value of 10 k w . with the value of c tsen and c rsen at 100 nf, the cut-off frequency is at 160 hz.
1999 apr 08 15 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h the buffer amplifiers which apply the compressed signals to tenv and renv have a maximum source current of 120 m a and a maximum sink current of 1 m a. together with the capacitor c tenv and c renv , the timing of the signal envelope monitors can be set. in the basic application, the value of both capacitors is 470 nf. because of the logarithmic compression, each 6 db signal increase means 18 mv increase of the voltage on the envelopes tenv or renv at room temperature. thus, timings can be expressed in db/ms. at room temperature, the 120 m a sourced current corresponds to a maximum rise-slope of the signal envelope of 85 db/ms. this is sufficient to track normal speech signals. the 1 m a current sunk by tenv or renv corresponds to a maximum fall-slope of 0.7 db/ms. this is sufficient for a smooth envelope and also eliminates the effect of echoes on switching behaviour. to determine the noise level, the signals on tenv and renv are buffered to tnoi and rnoi. these buffers have a maximum source current of 1 m a and a maximum sink current of 120 m a. together with the capacitors c tnoi and c rnoi , the timings can be set. in the basic application (see fig.16) the value of both capacitors is 4.7 m f. at room temperature, the 1 m a sourced current corresponds to a maximum rise-slope of the noise envelope of approximately 0.07 db/ms. this is small enough to track background noise and not to be influenced by speech bursts. the 120 m a current that is sunk corresponds to a maximum fall-slope of approximately 8.5 db/ms. however, during the decrease of the signal envelope, the noise envelope tracks the signal envelope so it will never fall faster than approximately 0.7 db/ms. the behaviour of the signal envelope and noise envelope monitors is illustrated in fig.10. fig.9 signal and noise envelope detectors. handbook, full pagewidth mgm302 log 432 675 log from microphone amplifier from loudspeaker amplifier duplex controller tsen r tsen c tsen c tenv c tnoi r rsen c rsen c renv c rnoi tenv tnoi rsen renv rnoi to logic to logic
1999 apr 08 16 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.10 signal and noise envelope waveforms. handbook, full pagewidth mbg354 input signal signal envelope noise envelope 4 mv (rms) 1 mv (rms) a c c 36 mv 36 mv b b b a b time a: 85 db/ms b: 0.7 db/ms b: 0.7 db/ms c: 0.07 db/ms decision logic: pins idt and swt fig.11 decision logic. (1) when v dlc < 0.2 v, - 10 m a is forced. handbook, full pagewidth mgm303 13 mv 13 mv tenv tnoi renv from logic from dynamic limiter rnoi v dt xx11 - 10 m a + 10 m a + 10 m a x10x 1x0x xx10 0 000x 0 v ref r idt c swt swt 25 24 3 2 7 5 idt duplex controller logic (1) attenuator
1999 apr 08 17 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h the TEA1099h selects its mode of operation (transmit, receive or idle mode) by comparing the signal and the noise envelopes of both channels. this is executed by the decision logic. the resulting voltage on pin swt is the input for the voice switch. to facilitate the distinction between signal and noise, the signal is considered as speech when its envelope is more than 4.3 db above the noise envelope. at room temperature, this is equal to a voltage difference v env - v noi = 13 mv. this so called speech/noise threshold is implemented in both channels. the signal on pin txin contains both the speech and the input signal from the loudspeaker (acoustic coupling). when receiving, the contribution from the loudspeaker overrules the speech. as a result, the signal envelope on tenv is formed mainly by the loudspeaker signal. to correct this, an attenuator is connected between tenv and the tenv/renv comparator. its attenuation equals that applied to the microphone amplifier. when a dial tone is present on the line, without monitoring, the tone would be recognized as noise because it is a signal with a constant amplitude. this would cause the TEA1099h to go into the idle mode and the user of the set would hear the dial tone fade away. to prevent this, a dial tone detector is incorporated which, in standard applications, does not consider input signals between hfrx and gnd as noise when they have a level greater than 25 mv (rms). this level is proportional to r rsen . in the same way, a transmit detector is integrated which, in standard applications, does not consider input signals between txin and gndtx as noise when they have a level greater than 0.75 mv (rms). this level is proportional to r tsen . the output of the decision logic is a current source (see fig.11). the logic table gives the relationship between the inputs and the value of the current source. it can charge or discharge the capacitor c swt with a current of 10 m a (switch-over). if the current is zero, the voltage on swt becomes equal to the voltage on idt via the high-ohmic resistor r idt (idling). the resulting voltage difference between swt and idt determines the mode of the TEA1099h and can vary between - 400 and +400 mv (see table 1). the switch-over timing can be set with c swt , the idle mode timing with c swt and r idt . in the basic application given in fig.16, c swt is 220 nf and r idt is 2.2 m w . this enables a switch-over time from transmit to receive mode or vice-versa of approximately 13 ms (580 mv swing on swt). the switch-over time from idle mode to transmit mode or receive mode is approximately 4 ms (180 mv swing on swt). the switch-over time, from receive mode or transmit mode to idle mode is equal to 4 r idt c swt and is approximately 2 seconds (idle mode time). the input dlc overrules the decision logic. when the voltage on pin dlc goes lower than 0.2 v, the capacitor c swt is discharged with 10 m a thus resulting in the transmit mode. table 1 modes of TEA1099h voice-switch: pins stab and swr a diagram of the voice-switch is illustrated in fig.12. with the voltage on swt, the TEA1099h voice-switch regulates the gains of the transmit and the receive channels so that the sum of both is kept constant. in the transmit mode, the gain of the microphone amplifier is at its maximum and the gain of the loudspeaker amplifier is at its minimum. in the receive mode, the opposite applies. in the idle mode, both microphone and loudspeaker amplifier gains are halfway. the difference between maximum and minimum is the so called switching range. this range is determined by the ratio of r swr and r stab and is adjustable between 0 and 52 db. r stab should be 3.65 k w and sets an internally used reference current. in the basic application diagram given in fig.16, r swr is 365 k w which results in a switching range of 40 db. the switch-over behaviour is illustrated in fig.13. in the receive mode, the gain of the loudspeaker amplifier can be reduced using the volume control. since the voice switch keeps the sum of the gains constant, the gain of the microphone amplifier is increased at the same time (see dashed curves in fig.13). in the transmit mode, however, the volume control has no influence on the gain of the microphone amplifier or the gain of the loudspeaker amplifier. consequently, the switching range is reduced when the volume is reduced. at maximum reduction of volume, the switching range becomes 0 db. v swt - v idt (mv) mode < - 180 transmit mode 0 idle mode >180 receive mode
1999 apr 08 18 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.12 voice switch. (1) c = constant. handbook, full pagewidth g vtx + g vrx = c (1) voice switch r stab r swr stab 21 22 swr to microphone amplifier from swt from volume control to loudspeaker amplifier duplex controller mgm304 fig.13 switch-over behaviour. handbook, halfpage - 400 - 200 0 + 400 + 200 g vtx, g vrx v swt - v idt (mv) g vtx r vol ( w ) 11400 7600 idle mode 3800 0 0 3800 7600 11400 (10 db/div) tx mode rx mode g vrx mgm305
1999 apr 08 19 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h logic inputs table 2 selection of transmit and receive channels for 13 different application modes logic inputs features application examples pd hfc mutt mutr auxc 0 x x x 1 hfrx to lsao ringer mode 0 x x x 0 ?ash, dc dialling 10000 dtmf to ln; dtmf to reco; qr and mics are active dtmf dialling in handset mode 10010micto auxo; raux to reco; qr and mics are active cordless intercom with corded handset 10110 mics to ln; ir to reco; ir to auxo mic to txout; qr and mics are active handset conversation 10101 txaux to ln; ir to auxo conversation using auxiliary i/o such as cordless conversation 11111 txin to txout; hftx to ln; ir to reco; hfrx to auxo cordless: hf mode in cordless handset 11011 raux to reco; hfrx to lsao listening on the loudspeaker 11001 txaux to ln; ir to auxo; raux to reco; hfrx to lsao answering machine: play and record messages; listen to the recorded message on the loudspeaker 11000 dtmf to ln; dtmf to reco; hfrx to lsao; qr and mics are active dtmf dialling in hf/gl modes 11101 txaux to ln; ir to auxo; ir to reco; hfrx to lsao answering machine: play and record messages while listening on the loudspeaker 11010 txin to txout; hftx to auxo; raux to reco; hfrx to lsao; mics is active cordless intercom with base 11110 txin to txout; hftx to ln; ir to reco; ir to auxo; hfrx to lsao; mics is active hf conversation mode 11100micto ln; ir to reco; ir to auxo; hfrx to lsao; mic to txout; qr; mics is active handset conversation with group-listening
1999 apr 08 20 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h limiting values in accordance with the absolute maximum rating system (iec 134); all dc levels are referenced to gnd. thermal characteristics symbol parameter conditions min. max. unit v ln positive continuous line voltage - 0.4 +12 v repetitive line voltage during switch-on or line interruption - 0.4 +13.2 v v esi positive continuous voltage on pin esi - 0.4 +6 v i i(esi) input current at pin esi - 140 ma v n(max) maximum voltage on pins reg, slpe, ir and agc - 0.4 v ln + 0.4 v on all other pins except v dd - 0.4 v bb + 0.4 v i line(max) maximum line current - 140 ma p tot total power dissipation t amb =75 c - 720 mw t stg ic storage temperature - 40 +125 c t amb operating ambient temperature - 25 +75 c symbol parameter conditions value unit r th(j-a) thermal resistance from junction to ambient in free air 63 k/w
1999 apr 08 21 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h fig.14 safe operating area. line t amb ( c) p tot (mw) (1) 35 1304 (2) 45 1158 (3) 55 1012 (4) 65 866 (5) 75 720 handbook, full pagewidth 160 0 3 91011 i line (ma) 7 58 6 4 120 40 80 12 v slpe (v) fca029 (1) (2) (5) (3) (4)
1999 apr 08 22 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h characteristics i line = 15 ma; r slpe =20 w ; z line = 600 w ; f = 1 khz; t amb =25 c; agc pin connected to ln; pd = high; hfc = low; auxc = low; mutt = high; mutr = high; measured according to test circuits; all dc levels are referenced to gnd; unless otherwise speci?ed. symbol parameter conditions min. typ. max. unit supplies l ine interface and internal supply ( pins ln, slpe, reg and v bb ) v slpe stabilized voltage between slpe and gnd (v ref ) i line = 15 ma 3.4 3.7 4 v i line = 70 ma 5.7 6.1 6.5 v v bb regulated supply voltage for internal circuitry i line = 15 ma 2.75 3.0 3.25 v i line = 70 ma 4.9 5.3 5.7 v i line line current for voltage increase start current - 18 - ma stop current - 45 - ma d v slpe(t) stabilized voltage variation with temperature referenced to 25 c t amb = - 25 to +75 c - 60 - mv d v bb(t) regulated voltage variation with temperature referenced to 25 c t amb = - 25 to +75 c - 30 - mv i bb current available on pin v bb speech mode - 11 - ma handsfree mode - 9 - ma v ln line voltage i line =1ma - 1.55 - v i line =4ma - 2.35 - v i line = 15 ma 3.7 4.0 4.3 v i line = 140 ma - 8.9 9.5 v e xternal supply ( pin esi) v esi external voltage supply allowed on pin esi -- 6v voltage on pin esi when supplied by a current source i esi = 140 ma except in power-down mode - 6.6 - v i i(esi) input current on pin esi v esi = 3.5 v - 3.1 - ma i esi(ext) external current supply allowed on pin esi -- 140 ma s upply for peripherals ( pin v dd ) v dd regulated supply voltage on v dd v bb > 3.35 v + 0.25 v (typ.) 3.1 3.35 3.6 v otherwise - v bb - 0.25 - v d v dd(t) regulated voltage variation with temperature referenced to 25 c t amb = - 25 to + 75 c; v bb > 3.35 v + 0.25 v (typ.) - 30 - mv i dd current consumption on v dd (capacitor disconnected) in trickle mode; i line = 0 ma; v dd = 1.5 v; v bb discharging - 15 150 na v dd > 3.35 v 60 100 -m a i dd(o) current available for peripherals v dd = 3.35 v -- - 3ma
1999 apr 08 23 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h s upply for microphone ( pin mics) v mics supply voltage for a microphone i mics =0ma - 2.0 - v i mics current available on mics -- - 1ma p ower - down input ( pin pd) v il low-level input voltage - 0.4 - 0.3 v v ih high-level input voltage 1.8 - v bb + 0.4 v i i(pd) input current -- 3 - 6 m a i bb(pd) current consumption on v bb during power-down phase pd = low; auxc = low - 460 -m a r inger mode ( pins pd, auxc, hfrx and lsao) i i(esi) input current on pin esi pd = low; auxc = high; v esi = 3.5 v - 3.1 - ma g v(hfrx-lsao) voltage gain from pin hfrx to lsao pd = low; auxc = high; v esi = 3.5 v; v hfrx = 20 mv (rms); r gals = 255 k w - 28 - db preampli?er inputs (pins mic+, mic - , ir, dtmf, txin, hftx, hfrx, txaux and raux) ? z i(mic) ? input impedance differential between pins mic+ and mic - - 70 - k w single-ended between pins mic+/mic - and gndtx - 35 - k w ? z i(ir) ? input impedance between pins ir and ln - 20 - k w ? z i(dtmf) ? input impedance between pins dtmf and gnd - 20 - k w ? z i(txin) ? input impedance between pins txin and gndtx - 20 - k w ? z i(hftx) ? input impedance between pins hftx and gnd - 20 - k w ? z i(hfrx) ? input impedance between pins hfrx and gnd - 20 - k w ? z i(txaux) ? input impedance between pins txaux and gnd - 20 - k w ? z i(raux) ? input impedance between pins raux and gnd - 20 - k w symbol parameter conditions min. typ. max. unit
1999 apr 08 24 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h tx ampli?ers tx handset microphone amplifier ( pins mic+, mic - and ln); note 1 g v(mic-ln) voltage gain from pin mic+/mic - to ln v mic = 5 mv (rms) 43.3 44.3 45.3 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.25 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.25 - db cmrr common mode rejection ratio - 80 - db thd total harmonic distortion at ln v ln = 1.4 v (rms) -- 2% i line = 4 ma; v ln = 0.12 v (rms) -- 10 % v no(ln) noise output voltage at pin ln; pins mic+/mic - shorted through 200 w psophometrically weighted (p53 curve) -- 77.5 - dbmp d g v(mute) gain reduction if not activated hfc = low; mutt = low; mutr = low; auxc = low; 60 80 - db dtmf amplifier ( pins dtmf, ln and reco); note 1 g v(dtmf-ln) voltage gain from pin dtmf to ln v dtmf = 50 mv (rms) 24.35 25.35 26.35 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.25 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.25 - db d g v(mute) gain reduction if not activated hfc = low; mutt = high; mutr = high; auxc = low 60 80 - db g v(dtmf-reco) voltage gain from pin dtmf to reco v dtmf = 50 mv (rms) -- 16.5 - db tx auxiliary amplifier using txaux ( pins txaux and ln); note 1 g v(txaux-ln) voltage gain from pin txaux to ln v txaux = 0.1 v (rms) 11.5 12.5 13.5 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.25 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.25 - db thd total harmonic distortion at ln v ln = 1.4 v (rms) -- 2% v txaux(rms) maximum input voltage at txaux (rms value) i line = 70 ma; thd = 2% - 1.2 - v v no(ln) noise output voltage at pin ln; pin txaux shorted to gnd through 200 w in series with 10 m f psophometrically weighted (p53 curve) -- 80.5 - dbmp symbol parameter conditions min. typ. max. unit
1999 apr 08 25 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h d g v(mute) gain reduction if not activated hfc = low; mutt = low; mutr = low; auxc = low 60 80 - db tx amplifier using hftx ( pins hftx and ln); note 1 g v(hftx-ln) voltage gain from pin hftx to ln v hftx = 15 mv (rms) 33.5 34.7 35.9 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.25 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.25 - db thd total harmonic distortion at ln v ln = 1.4 v (rms) -- 2% v hftx(rms) maximum input voltage at hftx (rms value) i line = 70 ma; thd = 2% - 95 - mv v no(ln) noise output voltage at pin ln; pin hftx shorted to gnd through 200 w in series with 10 m f psophometrically weighted (p53 curve) -- 77.5 - dbmp d g v(mute) gain reduction if not activated hfc = low; mutt = high; mutr = low; auxc = high 60 80 - db m icrophone monitoring on txout ( pins mic+, mic - and txout); note 1 g v(mic-txout) voltage gain from pin mic+/mic - to txout v mic = 2 mv (rms) 48.3 49.8 51.3 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.1 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.35 - db rx ampli?ers rx amplifiers using ir ( pins ir and reco); note 1 g v(ir-reco) voltage gain from pin ir (referenced to ln) to reco v ir = 15 mv (rms) 28.7 29.7 30.7 db d g v(f) gain variation with frequency referenced to 1 khz f = 30 to 3400 hz - 0.25 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.3 - db v ir(rms)(max) maximum input voltage on ir (referenced to ln) (rms value) i line = 70 ma; thd = 2% - 50 - mv v reco(rms)(max) maximum output voltage on reco (rms value) thd = 2% 0.75 0.9 - v v no(reco)(rms) noise output voltage at pin reco; pin ir is an open circuit (rms value) psophometrically weighted (p53 curve) -- 88 - dbvp symbol parameter conditions min. typ. max. unit
1999 apr 08 26 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h d g v(mute) gain reduction if not activated hfc = low; mutt = low; mutr = low; auxc = low 60 80 - db rx earpiece amplifier ( pins garx and qr); note 1 d g v(reco-qr) gain voltage range between pins reco and qr - 3 - +15 db v qr(rms)(max) maximum output voltage on qr (rms value) sine wave drive; r l = 150 w ; thd < 2% 0.75 0.9 - v v no(qr)(rms) noise output voltage at pin qr; pin ir is an open-circuit (rms value) g v(qr) = 0 db; psophometrically weighted (p53 curve) -- 88 - dbvp rx amplifier using raux ( pins raux and reco); note 1 g v(raux-reco) voltage gain from pin raux to reco v raux = 0.4 v (rms) - 3.7 - 2.4 - 1.1 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.25 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.25 - db v raux(rms) maximum input voltage on raux (rms value) thd=2% - 0.95 - v v no(reco)(rms) noise output voltage at pin reco; pin raux shorted to gnd through 200 w in series with 10 m f (rms value) psophometrically weighted (p53 curve) -- 100 - dbvp d g v(mute) gain reduction if not activated hfc = low; mutt = low; mutr = low; auxc = low 60 80 - db auxiliary ampli?ers using auxo tx auxiliary amplifier using mic+ and mic - ( pins mic+, mic - and auxo); note 1 g v(mic-auxo) voltage gain from pin mic+/mic - to auxo v mic = 10 mv (rms) 24.2 25.5 26.8 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.1 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.3 - db v mic(rms) maximum input voltage on mic+/mic - (rms value) thd=2% - 16 - mv v no(auxo) noise output voltage at pin auxo; pins mic+/mic - shorted to gndtx through 200 w in series with 10 m f (rms value) psophometrically weighted (p53 curve) -- 91 - dbvp symbol parameter conditions min. typ. max. unit
1999 apr 08 27 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h tx auxiliary amplifier using hftx ( pins hftx and auxo); note 1 g v(hftx-auxo) voltage gain from pin hftx to auxo v hftx = 100 mv (rms) 14.2 15.2 16.2 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.1 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.1 - db v auxo(rms) maximum output voltage on auxo (rms value) thd = 2% 0.8 0.9 - v v no(auxo)(rms) noise output voltage at pin auxo; pin hftx shorted to gnd through 200 w in series with 10 m f (rms value) psophometrically weighted (p53 curve) -- 91.5 - dbvp d g v(mute) gain reduction if not activated hfc = low; mutt = low; mutr = high; auxc = low 60 80 - db rx amplifier using ir ( pins ir and auxo); note 1 g v(ir-auxo) voltage gain from pin ir (referred to ln) to auxo v ir = 3 mv (rms) 31.6 32.8 34 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.1 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.3 - db v auxo(rms) maximum output voltage on auxo (rms value) thd = 2% 0.8 0.9 - v v no(auxo)(rms) noise output voltage at pin auxo; pin ir is an open circuit (rms value) psophometrically weighted (p53 curve) -- 85 - dbvp d g v(mute) gain reduction if not activated hfc = high; mutt = low; mutr = high; auxc = high 60 80 - db automatic gain control (pin agc) d g v(trx) gain control range for transmit and receive ampli?ers affected by the agc; with respect to i line =15ma i line = 70 ma; on g v(mic-ln) , g v(ir-reco) and g v(ir-auxo) 5.45 6.45 7.45 db i line = 70 ma for other transmit and receive gains affected 5.8 6.8 7.8 i start highest line current for maximum gain - 23 - ma i stop lowest line current for maximum gain - 57 - ma symbol parameter conditions min. typ. max. unit
1999 apr 08 28 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h logic inputs (pins hfc, auxc, mutt and mutr) v il low-level input voltage - 0.4 - 0.3 v v ih high-level input voltage 1.8 - v bb + 0.4 v i input current v bb =3v for pins hfc and auxc - 36 m a for pins mutt and mutr -- 2.5 - 6 m a handsfree hf microphone amplifier ( pins txin, txout and gatx); note 1 g v(txin-txout) voltage gain from pin txin to txout v txin = 8 mv (rms); r gatx = 30.1 k w 12.7 15.2 17.7 db d g v voltage gain adjustment with r gatx - 15 - +16 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.1 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.15 - db v no(txout)(rms) noise output voltage at pin txout; pin txin is shorted through 200 w in series with 10 m f to gndtx (rms value) psophometrically weighted (p53 curve) -- 101 - dbmp d g v(mute) gain reduction if not activated hfc = high; mutt = low; mutr = low; auxc = low 60 80 - db hf loudspeaker amplifier ( pins hfrx, lsao, gals and vol); note 1 g v(hfrx-lsao) voltage gain from pin hfrx to lsao v hfrx = 20 mv (rms); r gals = 255 k w 25.5 28 30.5 db d g v voltage gain adjustment with r gals - 28 - +7 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.3 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.3 - db d g v(vol) voltage gain variation related to d r vol = 1.9 k w when total attenuation does not exceed the switching range -- 3 - db v hfrx(rms)(max) maximum input voltage at pin hfrx (rms value) i line =70ma r gals =33k w ; for 2% thd in the input stage - 580 - mv v no(lsao)(rms) noise output voltage at pin lsao; pin hfrx is open circuit (rms value) psophometrically weighted (p53 curve) -- 79 - dbvp symbol parameter conditions min. typ. max. unit
1999 apr 08 29 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h v lsao(rms) output voltage (rms value) without external supply on pin esi i bb = 0 ma; i dd =1ma i line =18ma - 0.9 - v i line =30ma - 1.3 - v i line >50ma - 1.6 - v i lsao(max) maximum output current at pin lsao (peak value) 150 300 - ma d g v(mute) gain reduction if not activated hfc = high; mutt = high; mutr = high; auxc = high 60 80 - db d ynamic limiter ( pins lsao and dlc) t att attack time when v hfrx jumps from 20 mv to 20 mv + 10 db -- 5ms when v bb jumps below v bb(th) - 1 - ms t rel release time when v hfrx jumps from 20 mv + 10 db to 20 mv - 100 - ms thd total harmonic distortion at v hfrx = 20 mv + 10 db t>t att - 0.1 2 % v bb(th) v bb limiter threshold - 2.7 - v m ute loudspeaker ( pin dlc) v dlc(th) threshold voltage required on pin dlc to obtain mute receive condition - 0.4 - +0.2 v i dlc(th) threshold current sourced by pin dlc in mute receive condition v dlc = 0.2 v - 100 -m a d g vrx(mute) voltage gain reduction in mute receive condition v dlc = 0.2 v 60 80 - db rx amplifier using hfrx ( pins hfrx and auxo); note 1 g v(hfrx-auxo) voltage gain from pin hfrx to auxo v hfrx = 0.25 v (rms) 1.2 3.7 6.2 db d g v(f) gain variation with frequency referenced to 1 khz f = 300 to 3400 hz - 0.1 - db d g v(t) gain variation with temperature referenced to 25 c t amb = - 25 to +75 c - 0.4 - db v hfrx(rms) maximum input voltage at pin hfrx (rms value) i line = 70 ma; for 2% thd in the input stage - 580 - mv v no(auxo)(rms) noise output voltage at pin auxo; pin hfrx is an open-circuit (rms value) psophometrically weighted (p53 curve) -- 100 - dbvp d g v(mute) gain reduction if not activated hfc = low; mutt = low; mutr = high; auxc = low 60 80 - db symbol parameter conditions min. typ. max. unit
1999 apr 08 30 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h tx and rx envelope and noise detectors ( pins tsen, tenv, tnoi, rsen, renv and rnoi) preampli?ers g v(tsen) voltage gain from pin txin to tsen - 40 - db g v(rsen) voltage gain from pin hfrx to rsen - 0 - db logarithmic compressor and sensitivity adjustment d v det(tsen) sensitivity detection on pin tsen; voltage change on pin tenv when doubling the current from tsen i tsen = 0.8 to 160 m a - 18 - mv d v det(rsen) sensitivity detection on pin rsen; voltage change on pin renv when doubling the current from rsen i rsen = 0.8 to 160 m a - 18 - mv signal envelope detectors i source(env) maximum current sourced from pin tenv or renv - 120 -m a i sink(env) maximum current sunk by pin tenv or renv - 1.25 - 1 - 0.75 m a d v env voltage difference between pins renv and tenv when 10 m a is sourced from both rsen and tsen; signal detectors tracking; note 2 - 3 - mv noise envelope detectors i source(noi) maximum current sourced from pin tnoi or rnoi 0.75 1 1.25 m a i sink(noi) maximum current sunk by pin tnoi or rnoi dial tone detector or tx level limiter not activated -- 120 -m a d v noi voltage difference between pins rnoi and tnoi when 5 m a is sourced from both rsen and tsen; noise detectors tracking; note 2 - 3 - mv d ial tone detector v hfrx(th)(rms) threshold level at pin hfrx (rms value) r rsen =10k w- 25 - mv tx level limiter v txin(th)(rms) threshold level at pin txin (rms value) r tsen =10k w- 0.75 - mv symbol parameter conditions min. typ. max. unit
1999 apr 08 31 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h notes 1. when the channel is enabled according to table 2. 2. corresponds to 1 db tracking. 3. corresponds to 4.3 db noise/speech recognition level. d ecision logic ( pins idt and swt) signal recognition d v srx(th) threshold voltage between pins renv and rnoi to switch-over from receive to idle mode v hfrx 1999 apr 08 32 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h this text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the acrobat reader .this text is here in _ white to force landscape pages to be rotated correctly when browsing through the pdf in the acrobat reader.this text is here in this text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the acrobat reader. white to force land scape pages to be ... handbook, full pagewidth fca021 c ir 100 nf c emc 10 nf i = 15 ma j_line c imp 100 m f c reg 4.7 m f c vbb 470 m f c vdd 47 m f z imp 620 w v hfrx r slpe 20 w r mic 200 w c raux 100 nf v raux c txaux 100 nf c dtmf 100 nf r gatx 30.1 k w r stab 3.65 k w r tsen 10 k w c tsen 100 nf c tenv 470 nf c tnoi 4.7 m f r vol 0 to 22 k w r lsao 50 w r rsen 10 k w pd hfc mutt qr garx reco hfrx gals lsao rsen idt rnoi renv 33 39 mutr 40 auxc 41 37 38 34 35 1 11 12 6 25 5 7 gnd raux tsen tenv tnoi txaux dtmf gatx txout mic - mic + reg agc ln esi v bb v dd slpe 14 16 18 15 9 10 19 ir gndtx swr stab vol dlc c hftx 100 nf hftx mics c txin 100 nf txin 42 4 3 2 43 32 27 26 30 31 17 36 20 28 TEA1099h c gar 100 pf c gars 1 nf c rxe 100 nf c hfrx 100 nf c gals 150 pf c lsao 220 m f c rsen 100 nf c renv 470 nf c rnoi 4.7 m f c dlc 470 nf r e2 100 k w r qr 150 w r e1 100 k w r gals 255 k w external supply or current supply d esi d z v d = 10 v swt 13 29 22 21 23 8 24 c swt 220 nf r swr 365 k w r idt 2.2 m w c mics 4.7 m f c qr 4.7 m f v txaux v mic + v ir v dtmf v txin v hftx c exch 100 m f z exch 600 w fig.15 test circuit.
1999 apr 08 33 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h application information fig.16 basic application diagram. handbook, full pagewidth c mich 33 nf c tx1 c ir 100 nf c bal 220 nf c emc 10 nf c imp 22 m f c reg 4.7 m f c vbb 470 m f c vdd 47 m f c hftx 100 nf c tx2 r tx1 22 nf 15 k w r tx2 22 nf 15 k w r ast1 130 k w r ast2 3.92 k w r ast3 392 w r bal1 130 w z imp 620 w r bal2 820 w r slpe 20 w r tx3 8.2 k w handsfree microphone handset microphone c tnoi 4.7 m f c tenv 470 nf c micb 22 nf c raux 100 nf c txaux 100 nf c dtmf 100 nf c txin 100 nf c tsen 100 nf r stab 3.65 k w r tsen 10 k w r bmics 2 k w r micm 1 k w r micp 1 k w r gatx 30.1 k w r idt 2.2 m w r vol 0 to 22 k w r swr 365 k w r rsen 10 k w pd hfc auxc mutt mutr auxo qr garx reco hfrx gals lsao rsen renv rnoi idt 38 37 41 39 40 44 33 34 35 1 11 12 6 7 5 25 gnd tnoi tenv tsen raux txaux dtmf txin gatx txout hftx mic - mic + mics c mics 4.7 m f slpe reg agc ln esi v bb v dd ir gndtx stab swr vol dlc swt 13 29 21 22 23 8 24 17 14 16 18 15 9 10 19 20 31 30 36 26 27 28 32 43 42 4 3 2 TEA1099h from controller c auxo 100 nf c gar 100 pf c gars 1 nf c rxe 100 nf c hfrx 100 nf c gals 150 pf c lsao 220 m f c rnoi 4.7 m f c renv 470 nf c swt 220 nf c dlc 470 nf c rsen 100 nf r e2 100 k w r e1 100 k w r gals 255 k w from mics external supply d esi d z v d 10 v d2 d3 d1 d4 a b mics c qr 10 m f mgm306
1999 apr 08 34 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h package outline unit a 1 a 2 a 3 b p ce (1) eh e ll p z y w v q references outline version european projection issue date iec jedec eiaj mm 0.25 0.05 1.85 1.65 0.25 0.40 0.20 0.25 0.14 10.1 9.9 0.8 1.3 12.9 12.3 1.2 0.8 10 0 o o 0.15 0.1 0.15 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. 0.95 0.55 sot307-2 95-02-04 97-08-01 d (1) (1) (1) 10.1 9.9 h d 12.9 12.3 e z 1.2 0.8 d e e b 11 c e h d z d a z e e v m a x 1 44 34 33 23 22 12 y q a 1 a l p detail x l (a ) 3 a 2 pin 1 index d h v m b b p b p w m w m 0 2.5 5 mm scale qfp44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 x 10 x 1.75 mm sot307-2 a max. 2.10
1999 apr 08 35 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h soldering introduction to soldering surface mount packages this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our data handbook ic26; integrated circuit packages (document order number 9398 652 90011). there is no soldering method that is ideal for all surface mount ic packages. wave soldering is not always suitable for surface mount ics, or for printed-circuit boards with high population densities. in these situations reflow soldering is often used. re?ow soldering reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. typical reflow peak temperatures range from 215 to 250 c. the top-surface temperature of the packages should preferable be kept below 230 c. wave soldering conventional single wave soldering is not recommended for surface mount devices (smds) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. to overcome these problems the double-wave soldering method was specifically developed. if wave soldering is used the following conditions must be observed for optimal results: use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. for packages with leads on two sides and a pitch (e): C larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; C smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. the footprint must incorporate solder thieves at the downstream end. for packages with leads on four sides, the footprint must be placed at a 45 angle to the transport direction of the printed-circuit board. the footprint must incorporate solder thieves downstream and at the side corners. during placement and before soldering, the package must be fixed with a droplet of adhesive. the adhesive can be applied by screen printing, pin transfer or syringe dispensing. the package can be soldered after the adhesive is cured. typical dwell time is 4 seconds at 250 c. a mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. manual soldering fix the component by first soldering two diagonally-opposite end leads. use a low voltage (24 v or less) soldering iron applied to the flat part of the lead. contact time must be limited to 10 seconds at up to 300 c. when using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 c.
1999 apr 08 36 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h suitability of surface mount ic packages for wave and re?ow soldering methods notes 1. all surface mount (smd) packages are moisture sensitive. depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). for details, refer to the drypack information in the data handbook ic26; integrated circuit packages; section: packing methods . 2. these packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 3. if wave soldering is considered, then the package must be placed at a 45 angle to the solder wave direction. the package footprint must incorporate solder thieves downstream and at the side corners. 4. wave soldering is only suitable for lqfp, tqfp and qfp packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 5. wave soldering is only suitable for ssop and tssop packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. definitions life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. package soldering method wave reflow (1) bga, sqfp not suitable suitable hlqfp, hsqfp, hsop, htssop, sms not suitable (2) suitable plcc (3) , so, soj suitable suitable lqfp, qfp, tqfp not recommended (3)(4) suitable ssop, tssop, vso not recommended (5) suitable data sheet status objective speci?cation this data sheet contains target or goal speci?cations for product development. preliminary speci?cation this data sheet contains preliminary data; supplementary data may be published later. product speci?cation this data sheet contains ?nal product speci?cations. limiting values limiting values given are in accordance with the absolute maximum rating system (iec 134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the speci?cation.
1999 apr 08 37 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h notes
1999 apr 08 38 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h notes
1999 apr 08 39 philips semiconductors product speci?cation speech and handsfree ic with auxiliary inputs/outputs and analog multiplexer TEA1099h notes
internet: http://www.semiconductors.philips.com philips semiconductors C a worldwide company ? philips electronics n.v. 1999 sca63 all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owne r. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reli able and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not con vey nor imply any license under patent- or other industrial or intellectual property rights. netherlands: postbus 90050, 5600 pb eindhoven, bldg. vb, tel. +31 40 27 82785, fax. +31 40 27 88399 new zealand: 2 wagener place, c.p.o. box 1041, auckland, tel. +64 9 849 4160, fax. +64 9 849 7811 norway: box 1, manglerud 0612, oslo, tel. +47 22 74 8000, fax. +47 22 74 8341 pakistan: see singapore philippines: philips semiconductors philippines inc., 106 valero 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488 3263 taiwan: philips semiconductors, 6f, no. 96, chien kuo n. rd., sec. 1, taipei, taiwan tel. +886 2 2134 2886, fax. +886 2 2134 2874 thailand: philips electronics (thailand) ltd., 209/2 sanpavuth-bangna road prakanong, bangkok 10260, tel. +66 2 745 4090, fax. +66 2 398 0793 turkey: talatpasa cad. no. 5, 80640 gltepe/istanbul, tel. +90 212 279 2770, fax. +90 212 282 6707 ukraine : philips ukraine, 4 patrice lumumba str., building b, floor 7, 252042 kiev, tel. +380 44 264 2776, fax. +380 44 268 0461 united kingdom: philips semiconductors ltd., 276 bath road, hayes, middlesex ub3 5bx, tel. +44 181 730 5000, fax. +44 181 754 8421 united states: 811 east arques avenue, sunnyvale, ca 94088-3409, tel. +1 800 234 7381, fax. +1 800 943 0087 uruguay: see south america vietnam: see singapore yugoslavia: philips, trg n. pasica 5/v, 11000 beograd, tel. +381 11 62 5344, fax.+381 11 63 5777 for all other countries apply to: philips semiconductors, international marketing & sales communications, building be-p, p.o. box 218, 5600 md eindhoven, the netherlands, fax. +31 40 27 24825 argentina: see south america australia: 34 waterloo road, north ryde, nsw 2113, tel. +61 2 9805 4455, fax. +61 2 9805 4466 austria: computerstr. 6, a-1101 wien, p.o. box 213, tel. +43 1 60 101 1248, fax. +43 1 60 101 1210 belarus: hotel minsk business center, bld. 3, r. 1211, volodarski str. 6, 220050 minsk, tel. +375 172 20 0733, fax. +375 172 20 0773 belgium: see the netherlands brazil: see south america bulgaria: philips bulgaria ltd., energoproject, 15th floor, 51 james bourchier blvd., 1407 sofia, tel. +359 2 68 9211, fax. +359 2 68 9102 canada: philips semiconductors/components, tel. +1 800 234 7381, fax. +1 800 943 0087 china/hong kong: 501 hong kong industrial technology centre, 72 tat chee avenue, kowloon tong, hong kong, tel. +852 2319 7888, fax. +852 2319 7700 colombia: see south america czech republic: see austria denmark: sydhavnsgade 23, 1780 copenhagen v, tel. +45 33 29 3333, fax. +45 33 29 3905 finland: sinikalliontie 3, fin-02630 espoo, tel. +358 9 615 800, fax. +358 9 6158 0920 france: 51 rue carnot, bp317, 92156 suresnes cedex, tel. +33 1 4099 6161, fax. +33 1 4099 6427 germany: hammerbrookstra?e 69, d-20097 hamburg, tel. +49 40 2353 60, fax. +49 40 2353 6300 hungary: see austria india: philips india ltd, band box building, 2nd floor, 254-d, dr. annie besant road, worli, mumbai 400 025, tel. +91 22 493 8541, fax. +91 22 493 0966 indonesia: pt philips development corporation, semiconductors division, gedung philips, jl. buncit raya kav.99-100, jakarta 12510, tel. +62 21 794 0040 ext. 2501, fax. +62 21 794 0080 ireland: newstead, clonskeagh, dublin 14, tel. +353 1 7640 000, fax. +353 1 7640 200 israel: rapac electronics, 7 kehilat saloniki st, po box 18053, tel aviv 61180, tel. +972 3 645 0444, fax. +972 3 649 1007 italy: philips semiconductors, piazza iv novembre 3, 20124 milano, tel. +39 2 6752 2531, fax. +39 2 6752 2557 japan: philips bldg 13-37, kohnan 2-chome, minato-ku, tokyo 108-8507, tel. +81 3 3740 5130, fax. +81 3 3740 5077 korea: philips house, 260-199 itaewon-dong, yongsan-ku, seoul, tel. +82 2 709 1412, fax. +82 2 709 1415 malaysia: no. 76 jalan universiti, 46200 petaling jaya, selangor, tel. +60 3 750 5214, fax. +60 3 757 4880 mexico: 5900 gateway east, suite 200, el paso, texas 79905, tel. +9-5 800 234 7381, fax +9-5 800 943 0087 middle east: see italy printed in the netherlands 465002/750/03/pp40 date of release: 1999 apr 08 document order number: 9397 750 04985


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