this document contains information on a new product. specifications and information herein are subject to change without notice. ? motorola, inc., 2000. all rights reserved. semiconductor products sector motorola order number: ms140132ktpb/d rev. 0, 12/01/00 scale 1:1 ordering information ms140132kt (which includes): mc1420233 44-pin tqfp package mc1430132 28-pin soic package fu suffix tqfp package case 824 dw suffix soic package case 751f product brief advance information sh-pots chipset mc1420233 codsp mc1430132 shlic the ms140132kt chipset provides all the functions necessary to connect analog telephone sets or other analog terminals (telefax, answering machines, modems, etc.) into digital communication systems. it provides an economical solution for the traditional bors(c)ht [battery, overvoltage, ringing, supervision, (codec), hybrid, test] functions found in central-office exchanges, but is optimized for short-range communication [e.g., up to 500 m with four rens (ringer equivalence number) attached]. virtually all system-dependent parameters can be set under software control, giving a unprecedented flexibility to the system integrator, as well as optimizing the system cost. the digital interface to the sh-pots (short haul, plain old telephone system) chipset uses the easily programmable pcm/spi interface. the system architecture has been designed to offer the most cost-effective solution for short haul systems, yet offers the full flexibility required to meet worldwide analog telephony standards. the ms140132kt chipset is also suitable for q.552 applications. the ms140132kt chipset comprises three devices (see the block diagram): a pair of high-voltage devices, the short haul line interface circuit (shlic) which provides the signal and power interface to the analog lines (one per line) and a low-voltage cmos, dsp-based dual codec/control device (codsp) which provides all signal processing and control functions for up to two lines. key features ? digitally programmed transmission and signalling characteristics meet worldwide specification requirements ? integrated ringing: sine or trapezoid ? metering injection ? battery reversal ? tone generators for signalling and testing ? minimal external components ? codec and slic functions for two lines ? low-cost pots interface for short range ? pcm/spi interface applications ? advanced isdn nt (ntplus) ? analog/digital pabx ? cable telephone systems (set-top box) ? remote telephone access systems fiber to the curb radio in the loop ? internet telephones ms140132kt
ms140132kt 2 pin assignments 34 35 36 37 38 39 40 41 42 43 44 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 pin 1 indicator 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 aw sa sb ssb dco dci nc nc dcc tx rx dclf1 dclf2 v dd3 v ssb bw bat bats batr pu nc nc rng br tst vag v dd5a v ssa mc1420233 44-lead tqfp mc1430132 28-lead soic pwrs busy det0 det1 spi out pu[0] rng[0] br[0] tst[0] test z out spiclk spi in ch0 ch1 tst[1] br[1] rng[1] pu[1] sclk pllck cpll rx[0] tx[0] dcc[0] dco[0] dcc[1] dco[1] v ss a vag v dd3a tx[1] rx[1] jtdo jtck jtms jtdi jtrs v dd3d pcm out pcm in pcmclk frame v ssd pcm serial bus sh-pots mc1420233 mc1430132 mc1430132 tip tip ring ring v dd | C5 v power supply v bat | 22 v v ring | C68 v 0 v application dependent protection application dependent protection spi serial control bus figure 1. block diagram
3 ms140132kt operating conditions operating ranges define the limits for functional operation and parametric characteristics of the device. functional characteristics of the sh-pots system for reference, figure 1 shows the typical voltages on wires during various stages of operation. on-hook conditions when a line is not in use (on-hook), the designer may select either the speech battery or the ringing battery as the supply to the line drivers. in the on-hook state, most of the internal circuits are put into a low-power operating mode to minimize supply currents. the a and b wire outputs are effectively connected to the supply voltage, thus applying this voltage to the line. the output is current-limited in this mode, thus protecting against short circuits and limiting any inrush current when a line goes off-hook. if the shlic detects a current in excess of a (programmable) limit, the off-hook condition will be detected (an on-chip debouncer with selectable delay avoids accidental hookswitch detection), and the circuit will be put into active speech mode. ringing injection the sh-pots chipset is capable of directly injecting a ringing signal of up to 50 vrms (sine wave) without the need for additional external components. the technique of balanced ringing is used, which allows this large voltage swing to remain within the technology limits of the shlic device. the sh-pots chipset allows the user to program a dc offset during ringing as well as a reduced amplitude ringing signal, should it be necessary. ringing waveform, frequency, amplitude, and cadence, as well as ring-trip thresholds, are controlled by the codsp device and are all programmable. ringing cadence can be automatic, with independently programmable ring and pause times, or ringing can be controlled directly via the pcm bus. in automatic cadence mode, ringing bursts on both channels can optionally be interleaved if simultaneously active, to avoid peaks in current from the ringing battery supply. source impedance (z co ) the central-office impedance, z co , is synthesized using digital signal processing techniques. this renders it very stable, and, moreover, programmable by the user by means of coefficients which are loaded via the pcm. the z co setting is common for both lines. both real and complex z co s can be programmed to address the local requirements of specifications world-wide, and cover the range. operating conditions ( all voltages referenced to v ssa = v ssb or v ss = v ssa , as appropriate) symbol parameter limits unit min typ max batr ringing battery voltage C72 C65 C 18 v bats speech battery voltage C35 C32 C 18 v d bat difference between the batteries batr and bats, batr-bats C40 C35 0 v v dd5a supply voltage shlic 4.75 5 5.5 v t range operating temperature range C40 85 c v dd3d v dd3a v dd of codsp (3.3 v 8%) 3.036 3.3 3.564 v
ms140132kt 4 balance impedance (echo canceller) the balance impedance (model of the line + set impedance used to separate the receive and transmit signals in the hybrid) is independently programmable (though is the same for both channels). default values offer echo return loss of better than 20 db, though optimization to specific line and set characteristics may yield further improvement. metering injection metering pulses of selectable frequency (12 or 16 khz) and programmable amplitude can be injected into either analog channel independently. the width of the injected pulse is determined by the user (on/off mode), or by an internal timer (burst mode) which can be set by the user from 2 ms to 510 ms in steps of 2 ms. the metering signal is always a multiple of half metering periods. tone generation the sh-pots system allows the injection of user programmable tones, independently per channel, for signalling or user test purposes. per channel, a tone comprising two programmable (sine-wave) frequencies and programmable amplitudes can be generated (in this way, the most common call-progress and information tones, melody notes, or dtmf tones can be synthesized). the tone signal is added to the speech signal, or the speech signal can also be muted during a tone burst. pcm interface the sh-pots system uses the pcm interface to exchange b channel data (pcm coded voice) and control information with the controlling system. pcm data is exchanged in both directions (downstream, towards the analog line, and upstream, from the analog line) in 4-byte frames at a rate of 8000 frames per second (the standard pcm sampling rate). figure 1. sh-pots line voltages example 0 v v bats v batr on-hook (saturation, <0.5 v) (e.g., C24 v) (e.g., C64 v) (bias, 3 v + drop of bat switch) (bias, 3 v + drop of bat switch) on-hook adsi ring burst off-hook (bias, 3 v) (bias, 3 v) (avg. dc = v batr /2)
5 ms140132kt notes:
ms140132kt 6 notes:
7 ms140132kt notes:
digital dna is a trademark of motorola, inc. motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, represen tation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation co nsequential or incidental damages. typical parameters can and do vary in different applications and actual performance may vary over time. a ll operating parameters, including typicals, must be validated for each customer application by customers technical experts. motorola doe s not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorize d for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, o r for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. sho uld buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are regist ered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. how to reach us: usa/europe/locations not listed: motorola literature distribution: p.o. box 5405, denver, colorado 80217. 1-303-675-2140 or 1-800-441-2447 japan: motorola japan ltd.; sps, technical information center, 3-20-1 minami-azabu. minato-ku, tokyo 106-8573 japan. 81-3-3440-3569 asia/pacific: motorola semiconductors h.k. ltd.; silicon harbour centre, 2 dai king street, tai po industrial estate, tao po, n.t., hong kong. 852-26668334 technical information center: 1-800-521-6274 home page: http://motorola.com/semiconductors/ ms140132ktpb/d ms140132kt
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