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d a t a sh eet preliminary speci?cation file under integrated circuits, ic02 1997 jun 16 integrated circuits TDA9615H audio processor for vhs hi-fi
1997 jun 16 2 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H features all functions controlled via the 2-wire i 2 c-bus single supply integrated standby modes for low power consumption integrated power muting for line and rfc output full support of video recorder feature modes audio level meter output hi-fi signal processing: C adjustment-free C high performance C patented low distortion switching noise suppressor C ntsc and pal (secam) standard linear audio input with level adjustment 5 stereo inputs and additional mono audio input 2 stereo outputs (line and decoder) with independent output selection rf converter output with overload protect agc. general description the TDA9615H is an audio control and processing circuit for vhs hi-fi video recorders, controlled via the i 2 c-bus. the device is adjustment-free using an integrated auto-calibration circuit. extensive input and output selection is offered, including full support for (euro-scart) pay-tv decoding and video recorder feature modes. ordering information type number package name description version TDA9615H qfp44 plastic quad ?at package; 44 leads (lead length 1.3 mm); body 10 10 1.75 mm sot307-2
1997 jun 16 3 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H block diagram a ndbook, full pagewidth mgk471 m m m m tul sap 44 tunl 1 tunr 2 cinl 3 cinr 4 ext1l 5 ext1r 6 ext2l sap tul tur e1l e1r e2l e2r 7 ext2r 8 auxl 9 auxr n dub 10 normal select fmin 37 fmout 36 input select volume right m normal input level rf-converter mute volume left decoder select + 1 db 12 v TDA9615H 1.7 or 1.8 mhz sap 20 21 linout linin tur dcl dcr hid sda scl audio 22 dcfbl 23 dcrefl 24 emphl 25 dcl 26 detl tul e1l sap tur e1r e2l e2r sap + + + + + + 40 39 41 42 standby mode supply v cc agnd dgnd v ref i ref 35 27 43 v5out 38 29 28 m + e2l e2r + hf l dcr r n dub hf limiter peak hold level detector pll cco (1.7 or 1.8 mhz) dropout canceling hi-fi detector 1.3 or 1.4 mhz hf m carrier ratio hf limiter pll cco (1.3 or 1.4 mhz) envelope output select + record envelope output select + playback dcl mutel muter linel decr decl liner rfcout mutec mute r l peak hold auto-mute line select output select m sample- and-hold sample- and-hold weighting and fm de-emphasis rectifier noise reduction cca detector audio clipper i 2 c-bus interface m = mute i 2 c-bus data and control signals hid hid envout hid audio 34 dcfbr 33 dcrefr 32 emphr 31 dcr 30 18 19 15 14 16 17 12 13 detr weighting and fm de-emphasis rectifier noise reduction cca detector audio clipper 11 rfcagc fig.1 block diagram.
1997 jun 16 4 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H pinning symbol pin description tunl 1 tuner input left tunr 2 tuner input right cinl 3 cinch input left cinr 4 cinch input right ext1l 5 external 1 input left ext1r 6 external 1 input right ext2l 7 external 2 input left ext2r 8 external 2 input right auxl 9 auxiliary input left auxr 10 auxiliary input right rfcagc 11 rfc agc timing input rfcout 12 rfc output mutec 13 mute for rfc output mutel 14 mute for line output left linel 15 line output left liner 16 line output right muter 17 mute for line output right decl 18 decoder output left decr 19 decoder output right linout 20 linear audio output linin 21 linear audio input dcfbl 22 nr dc feedback left dcrefl 23 nr dc reference left emphl 24 nr emphasis left dcl 25 nr dc decoupling left detl 26 nr detector left agnd 27 analog ground i ref 28 reference current standard v ref 29 reference voltage ?lter detr 30 nr detector right dcr 31 nr dc decoupling right emphr 32 nr emphasis right dcrefr 33 nr dc reference right dcfbr 34 nr dc feedback right v cc 35 supply voltage fmout 36 fm output fmin 37 fm input v5out 38 5 v decoupling output envout 39 envelope output hid 40 hid input sda 41 i 2 c-bus sda input/output scl 42 i 2 c-bus scl input dgnd 43 digital ground sap 44 tuner sap input symbol pin description
1997 jun 16 5 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H functional description an overview of input/output selections is given in figs 3 to 5. full control of the TDA9615H is accomplished via the 2-wire i 2 c-bus. up to 400 kbits/s bus speed can be used, in accordance with the i 2 c-bus fast-mode specification. the detailed functional description can be found in chapter i 2 c-bus protocol. 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 TDA9615H mgk470 dcrefr emphr dcr detr i ref agnd detl dcl emphl dcrefl tunl tunr cinl cinr ext1l ext1r ext2r auxl rfcagc v ref dgnd scl sda hid envout v5out fmout v cc dcfbr sap fmin mutec mutel linel liner muter decl linout linin dcfbl rfcout decr ext2l auxr
1997 jun 16 6 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H o k, full pagewidth mgk473 tunl tuner mute ( - 47 to 0 db; 0 to + 15 db) mute (0 to + 14 db) audio fm processing hi-fi mute ( - 47 to 0 db; 0 to + 15 db) cinch ext1 ext2 sap (1) aux input select input left volume volume left sap linout linear audio processing linin tuner ext2 mute dub mix mute left ext2 output select output select envout rfcout hf envelope hf envelope stereo right stereo normal tuner ext1 sap mute output select normal tunr cinl cinr ext1l ext1r ext2r auxl sap ext2l auxr fmout tape volume left volume right output select line select input select fmin normal left normal right normal stereo decoder select 0 db agc 0 db + 1 db mute rfc mute envelope select normal input level normal select decl loh decr linel liner fig.3 input/output selections; standard operation. (1) for dub mix mode signal selections see fig.4.
1997 jun 16 7 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H f ull pagewidth mgk474 tunl mute ( - 47 to 0 db; 0 to + 15 db) mute (0 to + 14 db) audio fm processing hi-fi mute ( - 47 to 0 db; 0 to + 15 db) input select input left volume volume left sap linout linear audio processing (record) linin tuner ext2 mute dub mix mute left ext2 output select output select envout rfcout hf envelope hf envelope stereo right stereo normal tuner ext1 sap mute output select tunr cinl cinr ext1l ext1r ext2r auxl sap ext2l auxr fmout tape volume aux output select line select input select fmin normal normal normal mute left right normal left right left right left right decoder select 0 db agc 0 db + 1 db mute rfc mute envelope select normal input level normal select decl loh decr linel liner volume hi-fi (playback) fig.4 input/output selections; dub mix mode. dub mix mode (is2 = 1; is1 = 0; is0 = 1); input mixing of hi-fi (playback mode) signal with aux input for linear audio recording ( audio dubbing). selections generally used in combination with this mode are shown in heavy line type.
1997 jun 16 8 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H p agewidth mgk475 tunl mute ext2 output select rfcout tuner ext1 sap mute output select tunr cinl cinr ext1l ext1r ext2r auxl sap ext2l auxr line select input select mute output select tunl mute tunr cinl cinr ext1l ext1r ext2r auxl sap ext2l auxr input select decoder select 0 db agc 0 db + 1 db mute rfc mute decl loh decr linel liner fig.5 input/output selections; standby modes. a. active standby mode (stba = 1, stbp = 0); 75% power reduction. b. passive standby mode (stbp = 1); 90% power reduction.
1997 jun 16 9 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H i 2 c-bus protocol addressing and data bytes for programming the device (write mode) seven data byte registers are available; they are addressable via eight subaddresses. automatic subaddress incrementing enables the writing of successive data bytes in one transmission. during power-on, data byte registers are reset to a default state by use of a power on reset (por) circuit which signal is derived from the internally generated i 2 c-bus supply voltage (v5out; pin 38). for reading from the device (read mode) one data byte register is available without subaddressing. table 1 TDA9615H addresses and data bytes notes 1. use of subaddress f0h to f7h (1111 0xxx) instead of 00h to 07h (0000 0xxx) disables the automatic subaddress incrementing allowing continuous writing to a single data byte register. 2. the state of unused read bits are not reliable; their state may change during development. table 2 status of data bytes after por note 1. for eventual future compatibility it is advised to keep unused write bits equal to por state. data byte address write mode slave address byte (b8h) 10111000 subaddress bytes (00h to 07h) 0 (1) 0 (1) 0 (1) 0 (1) 0 0 or 1 0 or 1 0 or 1 control byte (subaddress 00) afm doc shh deth ntsc mute stbp stba select byte (subaddress 01) dos1 dos0 s5 s4 nil3 nil2 nil1 nil0 input byte (subaddress 02) i7 is2 is1 is0 ns2 ns1 ns0 i0 output byte (subaddress 03) loh osn osr osl eos los dos rfcm left volume byte (subaddress 04) i7 vls vl5 vl4 vl3 vl2 vl1 vl0 right volume byte (subaddress 05) r7 vrs vr5 vr4 vr3 vr2 vr1 vr0 volume byte (subaddress 06) simultaneous loading of subaddress 04 and subaddress 05 register power byte (subaddress 07) cals vcch test porr p3 p2 p1 p0 read mode slave address byte (b9h) 10111001 read byte calr autn 0 (2) por 0 (2) 1 (2) 0 (2) 0 (2) data byte address control byte 10001100 select byte 0 0 1 (1) 1 (1) 0000 input byte 0 (1) 0001110 (1) output byte 00000001 left volume byte 0 (1) 1000000 right volume byte 0 (1) 1000000 power byte 00000 (1) 0 (1) 0 (1) 0 (1)
1997 jun 16 10 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H valid transmissions to and from TDA9615H table 3 examples of valid transmissions overview of TDA9615H i 2 c-bus control table 4 condensed overview note 1. por. function data transfer sequence write start - b8h - 00h - data_for_00 - stop write with auto-increment start - b8h - 00h - data_for_00 - data_for_01 - data_for_02 - stop auto-increment wrap-around start - b8h - 07h - data_for_07 - data_for_00 - data_for_01 - stop write without auto-increment start - b8h - f6h - data_for_06 - data_for_06 - data_for_06 - stop read start - b9h - data_from_ic - stop start - b9h - data_from_ic - data_from_ic - data_from_ic - stop function modes control bits audio fm mode playback; loop-through (1) ; record afm, doc and shh dropout cancelling on; off doc headswitch noise cancel sample-and-hold time 6 m s; 8 m s shh playback hi-? carrier detection slow; fast deth record carrier ratio 0; 6; 8; 9.5; 11; 12.5; 13.5 db doc, shh and deth system standard ntsc (1) ; pal ntsc power mute output muting (1) mute operation mode full operation (1) ; active standby; passive standby stbp and stba normal input level 0 (1) to +14 db; mute nil3 to nil0 input select tuner (1) ; cinch; ext1; ext2; sap; dub mix; normal; aux is2, is1 and is0 normal select input select; volume; input-left; volume-left; sap; tuner; ext2; mute (1) ns2, ns1 and ns0 line output ampli?cation 0 db (1) ; +1 db loh output select mute (1) ; left; right; stereo; normal; mix-left; mix-right; mix-stereo osn, osr and osl envelope output output select (1) ; stereo; hf envelope eos and afm line output select output select (1) ; ext2 los decoder output select output select (1) ; tuner; ext1; sap; mute dos, dos1 and dos0 rfc output 0 db; mute (1) rfcm volume left - 47 to 0 db (1) ; 0 to +15 db; mute vls, vl5 to vl0 volume right - 47 to 0 db (1) ; 0 to +15 db; mute vrs, vr5 to vr0 auto-calibration off (1) ; start calibration cals supply voltage 9 v (1) ; 12 v vcch test standard operation (1) ; test modes test, s4 to nil0
1997 jun 16 11 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H control byte; subaddress 00 (hi-? and general control) table 5 bits of control byte table 6 bits afm, doc, shh and deth notes 1. x = dont care. 2. auto-normal function: if during hi-fi playback mode no fm carrier is detected at fmin (pin 37) the normal mode audio signal (linin; pin 21) is automatically selected by the output select function. a) hi-fi carrier detection time (i.e. auto-normal release time) can be selected via bit deth: fast mode: 1 to 2 hid periods (33 to 66 ms ntsc, 40 to 80 ms pal) slow mode: 7 to 8 hid periods (233 to 267 ms ntsc, 280 to 320 ms pal). b) the status of hi-fi detection can be monitored via the i 2 c-bus; see bit autn of the read byte (see table 31). c) if muting is required instead of automatic selection of the normal mode audio signal the normal input level function should be set to mute; see bits nil3 to nil0 of the select byte. bit description afm audio fm mode; see table 6 doc dropout cancel; see table 6 shh sample-and-hold high-state; see table 6 deth detector high; see table 6 ntsc ntsc television system standard; see table 7 mute power mute; see table 8 stbp standby mode passive; see table 9 stba standby mode active; see table 9 afm doc shh deth mode remarks description 0x (1) x (1) x (1) playback (2) hi-? circuit in playback mode 00x (1) x (1) playback doc off no dropout cancelling 01x (1) x (1) playback doc on dropout cancelling active 0x (1) 0x (1) playback sample-and- hold time = 6 m s headswitch noise cancel time is 6 m s 0x (1) 1x (1) playback sample-and- hold time = 8 m s headswitch noise cancel time is 8 m s 0x (1) x (1) 0 playback detect = fast hi-? detector timing: fast mode 0x (1) x (1) 1 playback detect = slow hi-? detector timing: slow mode 1x (1) x (1) x (1) record/loop-through hi-? circuit in record/loop-through mode 1000 loop-through (3)(4) no fm output signal (ee mode) 1001 record 0 db mix 0 db fm output carrier ratio (1 : 1) 1010 record 6 db mix 6 db fm output carrier ratio (1 : 2) 1011 record 8 db mix 8 db fm output carrier ratio (1 : 2.5) 1100 record 9.5 db mix standard 9.5 db fm output carrier ratio (1 : 3) 1101 record 11 db mix 11 db fm output carrier ratio (1 : 3.5) 1110 record 12.5 db mix 12.5 db fm output carrier ratio (1 : 4.2) 1111 record 13.5 db mix 13.5 db fm output carrier ratio (1 : 4.7)
1997 jun 16 12 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H 3. modes loop-through and record are equal in audio signal flow; fmout (pin 36) however is muted during loop-through mode. 4. por. table 7 bit ntsc notes 1. bit ntsc selects between the system standard settings for ntsc and pal (secam) use. the auto-calibration function uses the system standard hid frequency of 29.97 hz for ntsc and 25 hz for pal. after calibration bit ntsc allows immediate switching between the ntsc and pal system standard. 2. por. table 8 bit mute notes 1. bit mute controls the line and rfc output mute switches at pins 13, 14 and 17 (power mute function). power mute is also automatically activated at supply voltage power-up or power-down (v cc ; pin 35). 2. por. table 9 bits stbp and stba notes 1. por. 2. by selecting stba = 1 the TDA9615H is switched to low-power active standby mode. to reduce power consumption most circuits are switched off. rfc, line and decoder outputs however remain active. this way the direct audio selections offered via the line output select and decoder output select functions (bits los and dos of the output byte) remain operable in this mode. the output select mode signal is muted. 3. calibration and i 2 c-bus registers are not affected by using active standby or passive standby mode. 4. by selecting stbp = 1 the TDA9615H is switched to minimum power passive standby mode. all circuits except power mute, i 2 c-bus and the line input reference buffer (voltage at pins 1 to 10 and 44) are switched off for minimum power consumption. use of the power mute function (bit mute of control byte) ensures pop-free switching of the line and rfc output to and from passive standby mode. to obtain minimum power consumption the power mute function should be de-activated again during passive standby mode. 5. x = dont care. ntsc (1) mode description 0 pal hi-? circuit in pal mode (fm carriers: 1.4 and 1.8 mhz) 1 ntsc (2) hi-? circuit in ntsc mode (fm carriers: 1.3 and 1.7 mhz) mute (1) mode description 0 - power mute function released; mute switches open 1 mute (2) power mute function activated; mute switches closed stbp stba mode description 00 - (note 1) full operation 01 (2) active standby (3) standby mode; reduced power consumption 1 (4) x (5) passive standby (3) standby mode; minimum power consumption
1997 jun 16 13 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H select byte; subaddress 01 (decoder output select and linear audio volume control) table 10 bits of select byte table 11 bits dos1 and dos0; note 1 note 1. by selecting bit dos = 1 of the output byte several independent signal input selections are offered for the decoder outputs decl and decr (pins 18 and 19) via bits dos1 and dos0: a) tunl and tunr inputs (pins 1 and 2) b) ext1l and ext1r inputs (pins 5 and 6) c) sap input (pin 44) d) mute. these decoder selections are also operable in active standby mode (bit stba = 1 of the control byte). bit description dos1 decoder output select 1; see table 11 dos0 decoder output select 0; see table 11 nil3 normal input level 3; see table 12 nil2 normal input level 2; see table 12 nil1 normal input level 1; see table 12 nil0 normal input level 0; see table 12 dos1 dos0 mode description 0 0 tuner decoder output signal is tunl and tunr input signal 0 1 ext1 decoder output signal is ext1l and ext1r input signal 1 0 sap decoder output signal is sap input signal 1 1 mute mute
1997 jun 16 14 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H table 12 bits nil3, nil2, nil1 and nil0; note 1 notes 1. mute and 15 settings of amplification can be selected for the linear audio input signal (linin; pin 21). this level control can replace the manual adjustment of playback mode level at the linear audio circuit. 2. por. input byte; subaddress 02 (input selection for hi-? and normal audio) table 13 bits of input byte nil3 nil2 nil1 nil0 description 00000 db; note 2 00011db 00102db 00113db 01004db 01015db 01106db 01117db 10008db 10019db 101010db 101111db 110012db 110113db 111014db 1111 mute bit description is2 input select 2; see table 14 is1 input select 1; see table 14 is0 input select 0; see table 14 ns2 normal select 2; see table 15 ns1 normal select 1; see table 15 ns0 normal select 0; see table 15
1997 jun 16 15 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H table 14 bits is2, is1 and is0; note 1 notes 1. bits is2, is1 and is0 select the input signal which is led to the volume controls of the hi-fi processing and generally via the normal select function to the linear audio circuit (linout; pin 20). 2. por. 3. dub mix is a special selection for linear audio use supporting audio dubbing (a video recorder feature mode for sound recording of linear audio only). dub mix connects the aux input signal to the left channel ( 1 2 auxl + 1 2 auxr) and the hi-fi output signal to the right channel (generally 1 2 hi-fi left + 1 2 hi-fi right but also hi-fi left or hi-fi right can be selected). dub mix also changes part of the output select mode settings to normal mode for monitoring of the linear audio recording (see control bits osn, osr and osl of the output byte for dub mix mode input and output selection). table 15 bits ns2, ns1, ns0; note 1 notes 1. with bits ns2, ns1 and ns0 the input signal is selected which is available at the linout output (pin 20) for connection to an external linear audio circuit. the signal selected with the input select function (via bits is2, is1 and is0) is available in the following ways: a) left and right channel combined, optional including hi-fi volume control ( 1 2 hi-fi left + 1 2 hi-fi right). b) left channel only (language i), optional including left channel volume control. furthermore the sap input (pin 44), tuner input (pins 1 and 2) or ext2 input (pins 7 and 8) can be selected independently. also a mute setting is available. 2. por. is2 is1 is0 mode description 0 0 0 tuner (2) tunl and tunr input 0 0 1 cinch cinl and cinr input 0 1 0 ext1 ext1l and ext1r input (tv input) 0 1 1 ext2 ext2l and ext2r input (decoder input) 1 0 0 sap sap; mono input 1 0 1 dub mix (3) aux input signal (l) and selection of hi-? output signal (r) 1 1 0 normal linin input (linear audio) 1 1 1 aux auxl and auxr input (e.g. camcorder input) ns2 ns1 ns0 mode description 0 0 0 input select hi-? input selection 0 0 1 volume hi-? volume control 0 1 0 input-left left channel of hi-? input selection only 0 1 1 volume-left left channel of hi-? volume control 1 0 0 sap sap; mono input 1 0 1 tuner tunl and tunr input 1 1 0 ext2 ext2l and ext2r input 1 1 1 mute (2) mute
1997 jun 16 16 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H output byte; subaddress 03 (output selection and control) table 16 bits of output byte table 17 bit loh; note 1 notes 1. an additional 1 db amplification can be selected for line and decoder outputs linel, liner, decl and decr (pins 15, 16, 18 and 19). 2. por. table 18 bits osn, osr and osl; notes 1 and 2 notes 1. when no hi-fi signal is found on tape during playback mode the auto-normal function is activated; all output select function modes except mute will be overruled and changed to normal mode. if muting of the hi-fi sound is desired instead of selecting linear audio the normal input level (bits nil3 to nil0 of the select byte) should be set to mute. activation of the auto-normal function can be monitored by reading bit autn of the read byte. 2. if dub mix mode is selected via the input select function (see control bits is2, is1 and is0 of the input byte) functionality of the modes mix-left, mix-right and mix-stereo are changed to support audio dubbing input mixing. hi-fi channel selection is offered for the input and normal sound is available at the output for monitoring of the linear audio recording. see also table 19. 3. por. bit description loh line output high; see table 17 osn output select normal; see table 18 osr output select right; see table 18 osl output select left; see table 18 eos envelope output select; see table 20 los line output select; see table 21 dos decoder output select; see table 22 rfcm rfc mute; see table 23 loh mode description 00db (2) no line output ampli?cation 1 1 db 1 db line output ampli?cation osn osr osl mode description 0 0 0 mute (3) mute; no selection 0 0 1 left left hi-? channel selected (language i) 0 1 0 right right hi-? channel selected (language ii) 0 1 1 stereo hi-? stereo selected 1 0 0 normal normal selected (linear audio; linin input) 1 0 1 mix-left mix of hi-? left with normal ( 1 2 hi-fi left + 1 2 normal) 1 1 0 mix-right mix of hi-? right with normal ( 1 2 hi-? right + 1 2 normal) 1 1 1 mix-stereo mix of hi-? stereo with normal ( 1 2 hi-? stereo + 1 2 normal)
1997 jun 16 17 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H table 19 dub mix selections note 1. por. table 20 bit eos notes 1. a signal selection for output envout (pin 39) is available using bit eos. 2. por. 3. the selection made for mode stereo or hf envelope depends upon the mode of the hi-fi processing: a) hi-fi loop-through mode or record mode (bit afm = 1): audio peak envelope of hi-fi stereo. b) hi-fi playback mode (bit afm = 0): hf envelope of left channel fm carrier. table 21 bit los; notes 1 and 2 notes 1. an independent selection of ext2l and ext2r inputs (pins 7 and 8) to the line outputs linel and liner (pins 15 and 16) is possible by setting bit los to 1. this direct selection is also operable in active standby mode (stba = 1 of the control byte). 2. using bit dos and bits dos1 and dos0 of the output byte mode tuner or ext1 selection to the outputs decl and decr (pins 18 and 19) is offered realizing full euro-scart pay-tv decoder switching. 3. por. mode dub mix output selection dub mix input selection mute (1) mute mute left left hi-? left right right hi-? right stereo stereo 1 2 hi-fi left + 1 2 hi-fi right normal normal normal mix-left normal hi-? left mix-right normal hi-? right mix-stereo normal 1 2 hi-fi left + 1 2 hi-fi right eos (1) mode description 0 output select (2) audio peak envelope of output select mode signal 1 stereo or hf envelope (3) audio peak envelope of hi-? stereo or hf envelope los mode description 0 output select (3) line output signal is set by output select function 1 ext2 line output signal is ext2l and ext2r input
1997 jun 16 18 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H table 22 bit dos; notes 1 and 2 notes 1. an independent selection of tunl and tunr (pins 1 and 2), ext1l and ext1r (pins 5 and 6), sap (pin 44) or mute is possible for the decoder outputs decl and decr (pins 18 and 19) by setting bit dos to 1. source selection is offered by using bits dos1 and dos0 of the select byte. these direct selections are also operable in active standby mode (stba = 1 of the control byte). 2. in combination with the independent ext2 selection to the outputs linel and liner (pins 15 and 16) via bit los full euro-scart pay-tv decoder switching is offered. 3. por. 4. internal mode. table 23 bit rfcm; note 1 notes 1. rf converter output rfcout (pin 12) can be muted using bit rfcm. during mute the agc capacitor at pin 11 (rfcagc) is discharged, resetting agc control. 2. por. dos mode description 0 output select (3) decoder output signal is set by output select function 1 decoder select (4) decoder output signal is set by decoder output select function rfcm mode description 0 - rfc output is set by output select function 1 mute (2) rfc output signal is muted (agc reset)
1997 jun 16 19 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H volume bytes; subaddresses 04, 05 and 06 (left and right channel volume control) table 24 bits of volume bytes; see table 25 table 25 bits vls, vrs, vl5 to vl0 and vr5 to vr0; note 1 notes 1. left and right volume controls can be set simultaneous by using subaddress 06 (volume byte). addressing the volume byte will load both the left and right volume registers with the same data value. 2. x = dont care. 3. por. bit description vls volume left sign vl5 volume left 5 vl0 volume left 0 vrs volume right sign vr5 volume right 5 vr0 volume right 0 vls vl5 vl4 vl3 vl2 vl1 vl0 mode vrs vr5 vr4 vr3 vr2 vr1 vr0 00000000db 0000001 - 1db 0000010 - 2db 0000011 - 3db 0000100 - 4db 0101011 - 43 db 0101100 - 44 db 0101101 - 45 db 0101110 - 46 db 0101111 - 47 db 011x (2) x (2) x (2) x (2) mute 1x (2) x (2) 00000db (3) 1x (2) x (2) 0001+1db 1x (2) x (2) 0010+2db 1x (2) x (2) 0011+3db 1x (2) x (2) 0100+4db 1x (2) x (2) 1011+11db 1x (2) x (2) 1 1 0 0 +12 db 1x (2) x (2) 1 1 0 1 +13 db 1x (2) x (2) 1 1 1 0 +14 db 1x (2) x (2) 1 1 1 1 +15 db
1997 jun 16 20 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H power byte; subaddress 07 (power-up control and test) table 26 bits of power byte table 27 bit cals; note 1 notes 1. pin 39 (envout) or bit calr of the read byte can be monitored to check for successful completion of the calibration. it is advised to keep cals logic 1 after calibration to ensure a reliable calr state. 2. after a change of bit cals from logic 0 to logic 1, an automatic frequency calibration is performed setting hi-fi modem, band-pass filter and noise reduction. use of auto-calibration is only needed after power-up of the supply voltage (por). 3. por. table 28 bit vcch; notes 1 and 2 notes 1. to maximize the output drive when using 12 v supply voltage (v cc ; pin 35), the dc level of outputs linel, liner, decl and decr (pins 15, 16, 18 and 19) can be changed using bit vcch. 2. use of the power mute function (bit mute of the control byte) ensures disturbance-free switching of the line output signal when setting vcch after power-up. 3. por. table 29 bit test; note 1 notes 1. several special test modes can be selected for testing and evaluation purposes. bits s4 to nil0 of the select byte are used for selection of these tests. 2. por. bit description cals calibration start; see table 27 vcch v cc high; see table 28 test test; see table 29 porr por reset; see table 30 cals (2) mode description 0 - (note 3) - 1 start calibration start of automatic calibration cycle vcch mode description 0 9 v; note 3 output dc voltage is 4.5 v 1 12 v output dc voltage is 6 v test mode description 0 - (note 2) standard operation 1 test special measurement test modes
1997 jun 16 21 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H table 30 bit porr; note 1 notes 1. bit por of the read byte can be used to detect the occurrence of a power-on reset situation (bit por reads logic 1 in case the i 2 c register contents equal the por default state). when applying bit por this way, porr should be used after a power-on reset to force a reset of the por read bit state to logic 0. 2. por. read byte (device state information) table 31 bits of read byte table 32 bit calr; notes 1 and 2 notes 1. bit calr = 0 indicates the device is not calibrated. after an automatic calibration is started by setting bit cals of the power byte the end of calibration is signalled by this bit. if for some reason a calibration cannot be completed (e.g. no hid signal available or hi-fi processing is in playback mode) calr remains logic 0. if calibration is lost due to a power-on reset situation calr will return to logic 0 as well. 2. also the envelope output (pin 39) can be used to check for end of calibration. table 33 bit autn; notes 1 and 2 notes 1. when hi-fi processing is in playback mode but no hi-fi carrier input signal is detected the auto-normal function is activated. auto-normal overrules the output select mode setting, selecting normal sound (i.e. linear audio) instead of hi-fi. the state of this auto-normal function can be checked via bit autn. 2. the auto-normal function is only active (bit autn = logic 1) for hi-fi playback mode (bit afm = 0); during record or loop-through mode bit autn is always logic 0. porr mode description 0 - (note 2) - 1 por reset reset of por signal bit bit description calr calibration ready; see table 32 autn auto-normal; see table 33 por power-on reset; see table 34 calr description 0 device is not calibrated 1 device has completed auto-calibration autn description 0 audio fm signal is detected at fm input 1 no audio fm signal detected; normal sound is selected instead of hi-?
1997 jun 16 22 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H table 34 bit por; notes 1 and 2 notes 1. at power-on or during a power voltage dip, an internal power-on reset signal is generated which resets the i 2 c-bus data bits to a predefined state. when the internal data bits are found to be in por state (due to an actual power-on reset but also if set via the i 2 c-bus) bit por signals logic 1. 2. using the por bit to detect the occurrence of a power-on reset requires bit porr to be set logic 1 after power-up. setting bit porr forces the por bit to logic 0 independent of other i 2 c-bus bit settings. after calibration is completed also the calr bit can be used to detect a power-on reset; calibration will be lost in such situation which is signalled by calr = 0. limiting values in accordance with the absolute maximum rating system (iec 134). thermal characteristics dc characteristics por description 0i 2 c-bus bit state differs from power-on reset state 1i 2 c-bus bit state equals power-on reset state symbol parameter min. max. unit v cc supply voltage 0 13.2 v t stg storage temperature - 65 +150 c t amb operating ambient temperature 0 70 c v es electrostatic handling machine model - 300 +300 v human body model - 3000 +3000 v symbol parameter conditions value unit r th j-a thermal resistance from junction to ambient in free air 60 k/w symbol parameter conditions min. typ. max. unit supply voltage v cc supply voltage; pin 35 vcch = 0 8.1 9 13.2 v vcch = 1 8.1 12 13.2 v supply current i cc supply current; pin 35 - 45 60 ma stba = 1 (active standby mode) - 12 18 ma stbp = 1 (passive standby mode) - 46ma
1997 jun 16 23 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H ac characteristics loop-through mode audio input level - 8 dbv for f = 1 khz at tun inputs (pins 1 and 2); v cc =12v; t amb =25 c; por state with mute off; calibrated; bit ntsc set to logic 1 or logic 0; measured in application diagram of fig.6; unless otherwise speci?ed. input voltages (internally generated) v i input voltage pins 1 to 10, 21 and 44 - 3.8 - v pin 37 - 1.9 - v output voltages v o output voltage pin 12 - 3.8 - v pins 15, 16, 18 and 19 vcch = 0 - 4.5 - v vcch = 1 - 6 - v pin 20 - 4.5 - v pin 36 - 1.2 - v pin 38 - 5 - v output current i o output current at pin 38 -- 3ma hid input; pin 40 v ih high-level input voltage 2.75 - 5.5 v v il low-level input voltage 0 - 2.25 v symbol parameter conditions min. typ. max. unit line inputs and linear audio input (tun, cin, ext1, ext2, aux, sap and linin; pins 1 to 10, 44 and 21) r i input impedance 100 130 - k w v i input voltage -- 9 dbv line and decoder outputs (linel, liner, decl, decr; pins 15, 16, 18 and 19) v o output voltage - 9 - 8 - 7 dbv loh = 1 (+1 db output signal) - 8 - 7 - 6 dbv v o(max) maximum output voltage note 1 7 8 - dbv note 1; vcch = 1; v cc =12v 10 11 - dbv thd total harmonic distortion - 0.01 0.1 % a cb channel balance - 1 0 +1 db v n noise level tun = - dbv; note 2 -- 94 - 90 dbv r o output impedance - 100 150 w a mute volume mute vls to vl0 and vrs to vr0 = mute -- 95 - 70 db output mute osn, osr and osl = mute -- 85 - 70 db symbol parameter conditions min. typ. max. unit
1997 jun 16 24 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H notes 1. thd = 1%; output load: r l =5k w ; c l = 2.2 nf; volume = +3 db (12 v); tun level varied. 2. typical value: b = 20 hz to 20 khz, unweighted; production testing: b = 300 hz to 20 khz, unweighted. 3. crosstalk of any line input pair (tun, cin, ext1, ext2, aux or sap) to any other line input. a ct(ch) crosstalk between channels channel crosstalk tunl or tunr = - dbv -- 83 - 70 db a ct(ch)(i) crosstalk between input channels note 3 -- 93 - db i o(max) output current limiting mute = 1; power mute - +1 - ma i o discharge output current stbp = 1; passive standby -- 1 - ma linear audio output (linout; pin 20) v o output voltage - 9 - 8 - 7 dbv r o output impedance - 200 300 w rf converter output (rfcout; pin 12) v o output voltage - 9 - 8 - 7 dbv output voltage at high level tun = +8 dbv - 4.5 - 3 - 1.5 dbv thd total harmonic distortion - 0.03 - % tun = up to +8 dbv - <0.2 - % v n noise level tun = - dbv; note 2 -- 80 - dbv r o output impedance - 200 300 w i o(max) output current limiting mute = 1; power mute - +1 - ma i o discharge output current stbp = 1; passive standby -- 1 - ma power mute outputs (mutec, mutel, muter; pins 13, 14 and 17) r o output impedance 50 100 - k w mute = 1; dc load = 1ma - 15 -w envelope output (envout; pin 39); audio peak envelope v o output voltage 1.69 1.8 1.91 v output voltage at zero level tun = - dbv -- 0.3 v output voltage at zero level; maximum volume tun = - dbv; volume = +15 db -- 0.35 v output voltage at high level tun = +8 dbv 4.0 4.5 5.0 v a cb channel balance - 0.11 0 +0.11 v r o output impedance - 1 1.5 k w symbol parameter conditions min. typ. max. unit
1997 jun 16 25 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H record mode for test modes see table 38. note 1. typical value: b = 20 hz to 20 khz, unweighted; production testing: b = 300 hz to 20 khz, unweighted. symbol parameter conditions min. typ. max. unit noise reduction (test 25: linel and liner; pins 15 and 16) thd total harmonic distortion - 0.1 0.3 % at high level; tun = +8 dbv - 0.2 1 % a cb channel balance - 1 0 +1 db a lin linearity tun = - 8to - 68 dbv - 31.5 - 30.2 - 28.5 db high-level linearity tun = - 8 to +8 dbv 7.5 8 8.5 db a n noise level with respect to output signal tun = - 8to= - dbv; note 1 -- 46 - 41 db t att attack time in accordance with vhs speci?cation - 5 - ms t rec recovery time - 70 - ms f res frequency response 300 hz tu n = 1 khz to 300 hz - 0.7 - 0.2 +0.3 db frequency response 10 khz tu n = 1 khz to 10 khz 3.1 3.9 4.7 db audio low-pass ?lter response 20 khz tun = 1 khz to 20 khz; test 26 - 0.5 - 0.1 +0.5 db audio low-pass ?lter response 60 khz tun = 1 khz to 60 khz; test 26 -- 24 - 12 db fm modulator (test 25, test 26 and no test: fmout; pin 36) thd total harmonic distortion d f = 50 khz - 0.1 0.2 % d f (max) maximum fm frequency deviation 140 150 160 khz f c(error) carrier frequency error after calibration - 5 0 +5 khz d f c(l-r) carrier frequency difference between left and right channel f c(r) - f c(l) after ntsc calibration 399.2 401.2 403.2 khz d f c carrier frequency shift ntsc/pal system switching 97 100 103 khz tc temperature coef?cient - 50 - ppm/k noise reduction and fm modulator (fmout; pin 36) d f fm deviation 44.5 50 56.1 khz hf output (fmout; pin 36) v o(rms) output voltage left carrier 1st harmonic (rms value) 53 60 68 mv output voltage right carrier 1st harmonic (rms value) 160 180 202 mv v o(l) /v o(r) output voltage ratio between left and right carrier 2.7 3.0 3.3 d 3h distortion (3rd harmonic) 3rd harmonic/1st harmonic -- 28 - 18 db r o output impedance - 100 150 w
1997 jun 16 26 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H playback mode v fmin(rms) = 30 mv (rms value); d f = 50 khz; f mod = 1 khz; f = f 0 ; v cc = 12 v; t amb =25 c; bit ntsc set to logic 1 or logic 0; measured in application diagram of fig.6; unless otherwise speci?ed. for test modes see table 38. symbol parameter conditions min. typ. max. unit fmin; pin 37 and hf agc (test 5 and test 6: fmout; pin 36) v i(p-p) input voltage level (peak-to-peak value) left plus right channel; note 1 - 0.17 2 v agc start level (at pin 37) left plus right channel 59 84 118 mv b control bandwidth note 2 - 10 - khz left channel band-pass ?lter (test 3: fmout; pin 36) v o band-pass ?lter output voltage f = f 0 ; v fmin(rms) =30mv (rms value) 105 150 215 mv v o1 /v o band-pass ?lter output voltage ratio -- 30 - 20 db v o2 /v o - 9 - 6 - db v o3 /v o - 9 - 5 - db v o4 /v o -- 17 - 12 db v o5 /v o -- 12 - 9db v o6 /v o --- 30 db r d(g) group delay ripple f 0 - 150 khz to f 0 + 150 khz - <0.5 -m s f 0 400 khz C f 0 ------------------------------- - f 0 150 khz C f 0 -------------------------------- f 0 150 khz + f 0 -------------------------------- f 0 250 khz + f 0 -------------------------------- - f 0 250 khz + f 0 150 khz + -------------------------------- - f 0 400 khz + f 0 -------------------------------- -
1997 jun 16 27 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H right channel band-pass ?lter (test 4: fmout; pin 36) v o band-pass ?lter output voltage f = f 0 ; v fmin(rms) =30mv (rms value) 105 150 215 mv v o1 /v o band-pass ?lter output voltage ratio --- 30 db v o2 /v o -- 17 - 10 db v o3 /v o - 9 - 5 - db v o4 /v o -- 12 - 9db v o5 /v o - 9 - 6 - db v o6 /v o -- 30 - 20 db r d(g) group delay ripple f 0 - 150 khz to f 0 + 150 khz - <0.5 -m s hi-? detector and dropout cancelling v i(a) autn activation level left channel carrier at fmin (rms value) 3.0 4.2 5.8 mv v i(d) /v i(a) doc level with respect to autn level left channel carrier at fmin - 7 - 4 - 2db t d(a) autn activation delay carrier to no carrier at fmin 200 300 500 m s t d(d) doc switch-off delay no carrier to carrier at fmin 5 9 14 m s head switching noise suppressor (test 25: linel and liner; pins 15 and 16) t h hold pulse length 5 6 7 m s shh=1 7 8 9 m s thd total harmonic distortion (audio signal) note 3 --- 73 db t d delay from hid to hold - 0.3 -m s envelope output (envout; pin 39) v o output voltage fmin = 2 mv (rms value); left channel 0.6 0.9 1.2 v fmin = 20 mv (rms value); left channel 2.5 2.9 3.3 v fmin = 200 mv (rms value); left channel 4.2 4.7 5.0 v symbol parameter conditions min. typ. max. unit f 0 400 khz C f 0 ------------------------------- - f 0 250 khz C f 0 -------------------------------- f 0 150 khz C f 0 -------------------------------- f 0 250 khz C f 0 150 khz C -------------------------------- f 0 150 khz + f 0 -------------------------------- f 0 400 khz + f 0 -------------------------------- -
1997 jun 16 28 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H notes 1. signals below maximum input level are handled without internal clipping. higher input levels however can still be handled properly by the demodulators. typical input level equals two carriers of 30 mv (rms value). 2. single carrier signal at fmin of 75 mv (rms value) and amplitude modulated. control bandwidth is the modulation frequency at which the amplitude modulation is attenuated 3 db by the hf agc. 3. sample-and-hold audio distortion is measured using 500 hz at hid input (pin 40). fmin: f mod = 10 khz; d f = 50 khz. audio distortion is measured using a 3 khz 4th order low-pass filter. value is corrected with 24 db in order to calculate equivalent distortion at 30 hz hid input. 4. typical value: b = 20 hz to 20 khz, unweighted; production testing: b = 300 hz to 20 khz, unweighted. pll fm demodulator (test 25: linel and liner; pins 15 and 16) v i sensitivity d f = 150 khz; s/n = 35 db - 0.3 1.2 mv thd total harmonic distortion d f = 50 khz - 0.03 0.3 % total harmonic distortion at maximum d f = 150 khz - 0.2 1.5 % s/n signal to noise ratio d f = 50 to 0 khz 54 60 - db a ct(ch) channel crosstalk left or right carrier d f=0khz -- 80 - db noise reduction (test 26: linel and liner; pins 15 and 16) v n noise level tun = - dbv; note 4 -- 96 - 90 dbv thd total harmonic distortion tun = - 3.5 dbv - 0.05 0.2 % a l linearity tun = - 3.5 to - 33.5 dbv 58 59.6 62 db f res frequency response 300 hz tu n = 1 khz to 300 hz - 0.6 +0.4 +1.4 db frequency response 10 khz tu n = 1 khz to 10 khz - 9.2 - 7.7 - 6.2 db fm demodulator and noise reduction (linel and liner; pins 15 and 16) v o output voltage - 10 - 8 - 6 dbv a cb channel balance - 1.5 0 +1.5 db symbol parameter conditions min. typ. max. unit
1997 jun 16 29 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H application and test information a ndbook, full pagewidth mgk472 3.3 m w 10 m f 39 k w (2%) 47 m f 2.2 m f r2 68 k w r1 100 nf c1 m m m m m tul sap 44 from tuner 1 2 cinch ext1 ext2 aux 3 4 5 6 sap tul tur e1l e1r e2l e2r 7 8 9 n dub 10 normal select 10 nf 10 nf 10 nf 9 or 12 v 10 nf 220 nf (11 ) 220 nf 10 m f 10 m f fmin 37 fmout 36 input select volume right m normal input level rf-converter mute volume left decoder select + 1 db 12 v TDA9615H 1.7 or 1.8 mhz sap 20 21 linear audio tur dcl dcr hid sda scl audio 22 23 24 25 26 tul e1l sap tur e1r e2l e2r sap + + + + + + 40 39 41 42 standby mode supply 35 27 43 38 29 28 m + e2l e2r + hf l dcr r n dub hf limiter peak hold level detector pll cco (1.7 or 1.8 mhz) dropout canceling hi-fi detector 1.3 or 1.4 mhz hf m carrier ratio hf limiter pll cco (1.3 or 1.4 mhz) envelope output select + record envelope output select + playback dcl to decoder line mute r l peak hold auto-mute line select output select 10 m f rfc 10 m f 10 m f 10 m f 10 m f 47 m f sample- and-hold weighting and fm de-emphasis rectifier noise reduction cca detector audio clipper i 2 c-bus interface m = mute i 2 c-bus data and control signals hid hid af/hf envelope hid audio 34 33 32 31 30 18 19 15 14 16 17 12 13 5.6 k w r2 68 k w r1 100 nf c1 3.3 nf (1) 5.6 k w 3.3 nf 10 m f 47 m f sample- and-hold weighting and fm de-emphasis rectifier noise reduction cca detector audio clipper 11 fig.6 application diagram. (1) different standard audio levels can be selected by changing the component values of r1, r2 and c1; see table 36.
1997 jun 16 30 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H automatic calibration; see fig.7 by means of bit cals (power byte) the integrated auto-calibration system is activated. by adjusting the carrier frequencies, band-pass filters and noise reduction filters auto-calibration ensures that the hi-fi processing always is in accordance with the vhs hi-fi system standard. calibration is only needed after start-up of the video recorder; as long as the supply voltage (pin 35) is available calibration settings remain stable. auto-calibration is performed with the device in hi-fi loop-through mode, no standby or test mode should be active (auto-calibration demands bit settings afm = 1, stbp = 0, stba = 0 and test = 0). after setting bit cals (power byte) to logic 1 auto-calibration is started. calibration is performed fully automatically, using the hid input signal as a reference. calibration of the oscillator frequencies is performed by measuring the number of oscillator cycles within one hid high period and comparing this with an internal value stored in rom. four different rom values are available for ntsc or pal (secam) system calibration of both the left and right channel carrier. in case of ntsc calibration a special routine is active for the right channel carrier calibration resulting in a frequency difference between the left and right channel carrier of approximately 401.2 khz. this value effectively reduces the crosstalk from hi-fi carriers to the video colour signal as present during playback mode using extended play (ep) tape speed. ntsc calibration uses the standard 29.97 hz (i.e. 16.683 ms) hid signal where pal calibration uses the standard 25 hz (i.e. 20 ms) hid signal. the maximum frequency error after auto-calibration is 5 khz assuming a hid high-time error of maximum 5 m s. to realize ntsc ep optimization within 2 khz, hid jitter should not exceed 1 m s. in general the crystal based hid signal available in the video recorder can be used without modification. after calibration of the oscillators, the band-pass filters are calibrated together with the integrated weighting and fm de-emphasis filter of the noise reduction. the total auto-calibration time needed is 17 hid cycles or less. end of calibration is signalled by bit calr of the read byte. the envelope output can also be used to monitor calibration; for this purpose envout (pin 39) is forced >2.5 v during calibration. the audio signal to the audio envelope (level meter) function should be muted; otherwise the audio envelope output may be >2.5 v as well making it impossible to detect end of calibration via the envout pin. fig.7 example of automatic calibration flow. handbook, full pagewidth mgk477 logic 1 logic 0 logic 1 logic 0 4 v 3 v 5 v calibration ready i 2 c-bus write i 2 c-bus read pin 39 (calr) (envout) pin 40 (cals) (hid) left channel oscillator right channel oscillator band-pass and noise reduction filters
1997 jun 16 31 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H after a calibration in ntsc or pal mode the oscillators and band-pass filters can be switched between ntsc and pal system frequencies without the need for additional calibration. switching between these system modes is executed immediately and can be done in any operational mode. frequency accuracy of switching is 100 khz 3 khz for both carriers. for record mode however it is advised to use re-calibration after system switching; this to obtain the best possible frequency accuracy. a new auto-calibration can be started by first resetting bit cals to logic 0 followed by setting bit cals to logic 1 again. envelope output; see figs 8 to 11 envout (pin 39) is an analog output for stereo audio level (e.g. level meter display) and for playback mode fm carrier level (e.g. auto-tracking). at the microcontroller only one a/d converter input is needed for reading of all necessary information. during playback mode i 2 c-bus bit eos offers selection between audio or carrier level information. audio level information is always output during loop-through mode and record mode however now eos offers a fixed selection of hi-fi stereo (i.e. independent of the output select mode setting); helpful when audio level information is used by the microcontroller for controlling the hi-fi record volume. table 35 envelope output select afm eos envelope output functional use 0 (playback mode) 0 af envelope of output select level meter display 0 (playback mode) 1 hf envelope auto-tracking or manual tracking display 1 (record mode/ loop-through mode) 0 af envelope of output select level meter display 1 (record mode/ loop-through mode) 1 af envelope of hi-? stereo record volume control (and level display) audio envelope uses time multiplexing to output both left and right channel audio level. a peak hold function and dynamic range compression (square root function) are included for easy read-out. the peak hold function as well as left and right channel multiplexing is controlled by the hid input signal (pin 40). the hf envelope output signal is continuous and derived from the left channel carrier. hf envelope shows a logarithmic characteristic.
1997 jun 16 32 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H fig.8 timing diagram of envelope output signal. handbook, full pagewidth mgk478 i 2 c-bus registers hid input hid period envelope out eos = 0 or afm = 1 eos = 1 and afm = 0 012 3 hf envelope peak right in period -1 peak right in period 0 peak right in period 1 peak right in period 2 peak left in period 0 peak left in period 1 peak left in period 2 peak left in period 3 fig.9 functional diagram of envelope output circuit. handbook, full pagewidth mgk480 output select hi-fi output select left channel audio: right channel audio: hi-fi eos ?afm hf envelope af envelope full wave rectifier full wave rectifier peak hold peak hold 1.3/1.4 mhz carrier reset reset eos ?afm sample- and-hold hid (pin 40) envout (pin 39) sample- and-hold sample sample hf level detector square root compression square root compression
1997 jun 16 33 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H fig.10 envelope output; af envelope (audio peak level). loh = 0. handbook, halfpage - 40 10 5 0 1 mgk481 2 3 4 - 30 - 20 - 10 0 envout output voltage (v) line output level (dbv) fig.11 envelope output; hf envelope (playback carrier level). ntsc (1.3 mhz) or pal (1.4 mhz). handbook, halfpage 0 5 1 2 3 4 mgk482 10 - 1 11010 2 10 3 envout output voltage (v) fmout left channel carrier amplitude (rms value) (v)
1997 jun 16 34 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H power mute; see fig.12 without countermeasures switching of the power supply voltage (v cc ; pin 35) or use of the built-in passive standby mode causes strong disturbances on the output pins because of the rise or drop of the outputs dc voltages. the TDA9615H includes three integrated mute switches to block such disturbances and avoiding the need of an external mute circuit. by connecting the power mute switches behind the line and rfc output capacitors pop-free line and rfc output signals are realized. power muting is active when control byte bit mute = 1. because this also is the por default state, muting is automatically activated when the power supply voltage is switched on. the integrated mute switches (mutec, mutel and muter; pins 13, 14 and 17) are closed, forming a low impedance path to ground. furthermore the line and rfc outputs (rfcout, linel and liner; pins 12, 15 and 16) are current limited to 1 ma to achieve good attenuation without the need for a series resistor between output and mute switch. although the decoder outputs (decl and decr; pins 18 and 19) have no integrated muting these are current limited also for use with the integrated mute switches or to assist possible external muting. after the output dc voltage is settled the power mute function can be deactivated by selecting mute = 0. now the mute switches are opened showing a high impedance of 100 k w to ground and output current limiting is deactivated. note that the time needed for output dc settling is proportional to the output capacitor value used; with a 10 m f capacitor a safe mute time to use is 200 ms (i.e. t mute =c 20000). using such controlled muting very good performance is achieved for power-up, power-down and passive standby mode switching. at a sudden supply power loss however (e.g. mains power plug pulled) there may be no time to activate the power mute function via the i 2 c-bus. a power-down detector however instantly activates the power mute function in case the supply voltage falls below 7 v (auto-mute). for proper muting supply voltage drop rate should not exceed 1 v/10 ms. fig.12 example of power mute control and auto-mute function. (1) por. handbook, full pagewidth mgk476 v cc auto-mute (v cc < 7 v) bit mute ( 1 ) ( 1 ) bit stbp pins 13, 14 and 17 pins 12, 15 and 16 output signal with power mute t mute t mute t mute t mute t mute auto-mute active operation power off power off active operation power off (standby) active operation passive standby
1997 jun 16 35 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H do not set mute and change stbp at the same time; to avoid output glitches power muting should precede the switching of passive standby mode. power muting takes up approximately 4 ma supply current, so to realize the minimum power consumption of passive standby mode muting has to be deactivated. note also the use of passive standby mode to initiate a controlled power-off switching. i ref resistor the external resistor at pin 28 defines internal reference currents and determines temperature stability of the circuits adjusted by the auto-calibration function. the external resistor should have the following dimensions: value = 39.0 k w 2%; temperature coefficient = 50 ppm/k. standard hi-? audio level using the application circuit as proposed in fig.6, the standard fm deviation of 50 khz equals a 1 khz audio signal of - 8 dbv line output level (loh = 0). a different standard audio level can be selected by changing the external filter components of the noise reduction at pins 24 and 32 (emphl and emphr); standard audio level changes proportional to the impedance of the external de-emphasis filter; see table 36. table 36 standard audio levels; see application diagram of fig.6 component values line output level for 50 khz fm deviation (equivalent to 1 khz audio signal) (dbv) r1 (k w ) r2 (k w ) c1 (nf) 91 7.5 2.4 - 5.6 82 6.8 2.7 - 6.4 75 6.2 3.0 - 7.1 68 5.6 3.3 - 8.0 62 5.1 3.6 - 8.8 56 4.7 3.9 - 9.8 51 4.3 4.3 - 10.6 rfc agc; see fig.13 to avoid over modulation in the rf converter unit connected to rfcout (pin 12) an agc function is incorporated, limiting the maximum signal level at pin rfcout to - 3 dbv. fig.13 rf converter output agc. handbook, halfpage mgk479 rfc output (dbv) - 3 - 3 line output (dbv)
1997 jun 16 36 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H the rfc output can be muted by setting of bit rfcm = 1. when applying this mute the agc control is reset by discharging the capacitor at pin 11 (rfcagc). audio dubbing TDA9615H includes unparalleled functionality supporting the audio dubbing function of hi-fi video recorders. audio dubbing is a feature mode for recording of new sound material on the linear audio track (i.e. normal sound) of an existing recording. audio dubbing can be used in two different ways. o utput mix a new, partly, recording is made on the linear audio track; afterwards during playback mode the new linear audio and the original hi-fi sound are combined. this way hi-fi stereo quality remains and linear audio is only partly used e.g. for speech only (commentary track). however there is no control over the original (hi-fi) sound. playback mode mixing of hi-fi and normal sound is supported by the output select function modes mix-left, mix-right and mix-stereo (osn, osr and osl of the output byte) creating a fixed output signal of 1 2 hi-fi left + 1 2 normal. i nput mix a new, complete, recording is made on the linear audio track; afterwards playback mode uses linear audio sound only. this way hi-fi stereo quality is lost but there is total freedom in defining the new material. furthermore this way playback mode is no longer restricted to hi-fi video recorders with output mix option. selection dub mix mode of the input select function, when combined with selection volume mode of the normal select function, changes the circuit into a mixing desk. a new linear audio recording can be created mixing together new and original sound. by use of the left and right channel volume controls continuous control is offered over amplitude and ratio mix of the aux input signal (e.g. a microphone input) and the original hi-fi playback mode sound. this functionality is realized by internal connection of the aux input pair to the left channel volume control and by internal connection of the hi-fi output signal pair to the right channel volume control. for output and hi-fi selection the dub mix mode uses, and partly overrules, the output select function settings. output select function modes mix-left, mix-right and mix-stereo make the normal sound available at the line outputs for monitoring of the dub mix mode recording. table 37 input select function is set to dub mix mode (is2, is1, is0 = 101); note 1 note 1. modes shown in bold are the most used modes. output select mode osn osr osl dub mix output selection dub mix input selection left channel right channel mute 0 0 0 mute aux stereo mute left 0 0 1 hi-? left aux stereo hi-? left right 0 1 0 hi-? right aux stereo hi-? right stereo 0 1 1 stereo aux stereo stereo normal 1 0 0 normal aux stereo normal mix-left 101 normal aux stereo hi-? left mix-right 110 normal aux stereo hi-? right mix-stereo 111 normal aux stereo hi-? stereo output select function mode mix-stereo is the setting generally used for audio dubbing. in combination with setting the normal select function to volume mode user control over amplitude and ratio is offered for the aux and hi-fi signal as follows: ( 1 4 auxl + 1 4 auxr) volume left + ( 1 4 hi-fi left + 1 4 hi-fi right) volume right. switching hi-fi to a mode other than playback or selection of output select function mode normal should be avoided; using these settings a signal loop can be closed from output to input possibly leading to audio oscillation. for the same reason auto-normal switching is not active during dub mix mode; in case no hi-fi input signal is detected the hi-fi sound is muted.
1997 jun 16 37 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H test modes; see table 38 special test modes are implemented for testing and evaluation purposes. these test modes are available via the power byte test bit and selection is enabled via bits of the select byte. table 38 test modes for evaluation purposes notes 1. x = dont care. 2. calibration may be lost when selecting product testing modes. 3. audio output level for tests 25b and 25c (test output = line out) is typical - 6.5 dbv (with input = - 8 dbv or fm deviation = 50 khz; loh = 0). audio input level for tests 25a, 26a and 26c (test input = line in) is typical - 6.5 dbv (for output = - 8 dbv or fm deviation = 50 khz; hi-fi volume = - 3 db). the test outputs and test inputs used for tests 25 and 26 directly connect to internal signal lines. signals found here are not compensated for temperature or tolerance spread, level measurements therefore can be used relative only. absolute values are no indication of overall performance. 4. test 26c (expander test) requires the auto-normal function to be deactivated (i.e. carrier available at fmin pin). test s4 nil3 nil2 nil1 nil0 description 0x (1) x (1) x (1) x (1) x (1) standard operation 1 0 0 0 0 1 test 1: left channel fm carrier only (1.3 or 1.4 mhz); record mode 1 0 0 0 1 0 test 2: right channel fm carrier only (1.7 or 1.8 mhz); record mode 1 0 0 0 1 1 test 3: left channel band-pass ?lter, hf agc off; playback mode (test output = fmout) 1 0 0 1 0 0 test 4: right channel band-pass ?lter, hf agc off; playback mode (test output = fmout) 1 0 0 1 0 1 test 5: hf agc (via left channel band-pass ?lter); playback mode (test output = fmout) 1 0 0 1 1 0 test 6: hf agc (via right channel band-pass ?lter); playback mode (test output = fmout) 100111 to 111000 product testing; not for evaluation; note 2 1 1 1 0 0 1 test 25 (note 3) a: left channel fm modulator (left carrier only); record mode (test input = line in left) b: left and right channel noise reduction (compressor); record mode (test output = line out) c: left and right channel fm demodulator; playback mode (test output = line out) 1 1 1 0 1 0 test 26 (note 3) a: right channel fm modulator (right carrier only); record mode (test input = line in right) b: left and right channel audio low-pass filter; record mode (test input = line in, test output = line out) c: left and right channel noise reduction (expander); playback mode (test input = line in); note 4
1997 jun 16 38 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H package outline unit a 1 a 2 a 3 b p ce (1) eh e ll p qz 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 0.85 0.75 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 92-11-17 95-02-04 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 q 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
1997 jun 16 39 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H soldering introduction there is no soldering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. however, wave soldering is not always suitable for surface mounted ics, or for printed-circuits with high population densities. in these situations reflow soldering is often used. this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our ic package databook (order code 9398 652 90011). re?ow soldering reflow soldering techniques are suitable for all qfp packages. the choice of heating method may be influenced by larger plastic qfp packages (44 leads, or more). if infrared or vapour phase heating is used and the large packages are not absolutely dry (less than 0.1% moisture content by weight), vaporization of the small amount of moisture in them can cause cracking of the plastic body. for more information, refer to the drypack chapter in our quality reference handbook (order code 9397 750 00192). 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 techniques exist for reflowing; for example, thermal conduction by heated belt. dwell times vary between 50 and 300 seconds depending on heating method. typical reflow temperatures range from 215 to 250 c. preheating is necessary to dry the paste and evaporate the binding agent. preheating duration: 45 minutes at 45 c. wave soldering wave soldering is not recommended for qfp packages. this is because of the likelihood of solder bridging due to closely-spaced leads and the possibility of incomplete solder penetration in multi-lead devices. if wave soldering cannot be avoided, the following conditions must be observed: a double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. the footprint must be at an angle of 45 to the board direction and must incorporate solder thieves downstream and at the side corners. even with these conditions, do not consider wave soldering the following packages: qfp52 (sot379-1), qfp100 (sot317-1), qfp100 (sot317-2), qfp100 (sot382-1) or qfp160 (sot322-1). 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. maximum permissible solder temperature is 260 c, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 c within 6 seconds. 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. repairing soldered joints fix the component by first soldering two diagonally- opposite end leads. use only a low voltage soldering iron (less than 24 v) 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.
1997 jun 16 40 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H 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. purchase of philips i 2 c components 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. purchase of philips i 2 c components conveys a license under the philips i 2 c patent to use the components in the i 2 c system provided the system conforms to the i 2 c specification defined by philips. this specification can be ordered using the code 9398 393 40011.
1997 jun 16 41 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H notes
1997 jun 16 42 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H notes
1997 jun 16 43 philips semiconductors preliminary speci?cation audio processor for vhs hi-? TDA9615H notes
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