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MOTOROLA
Order Number: MS140132KTPB/D Rev. 0, 12/01/00
Semiconductor Products Sector
Product Brief
Advance Information
MS140132KT
FU SUFFIX TQFP PACKAGE CASE 824
SH-POTS Chipset
MC1420233 CODSP MC1430132 SHLIC
SCALE 1:1
DW SUFFIX The MS140132KT chipset provides all the functions necessary to SOIC PACKAGE connect analog telephone sets or other analog terminals (telefax, CASE 751F answering machines, modems, etc.) into digital communication systems. It provides an economical solution for the traditional ORDERING INFORMATION BORS(C)HT [Battery, Overvoltage, Ringing, Supervision, (Codec), MS140132KT (which includes): Hybrid, Test] functions found in central-office exchanges, but is MC1420233 44-Pin TQFP Package optimized for short-range communication [e.g., up to 500 m with MC1430132 28-Pin SOIC Package 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
This document contains information on a new product. Specifications and information herein are subject to change without notice. (c) Motorola, Inc., 2000. All rights reserved.
MS140132KT
PIN ASSIGNMENTS MC1430132 28-LEAD SOIC
PIN 1 INDICATOR
MC1420233 44-LEAD TQFP
RNG[0]
SPIout PU[0]
VSSB BW BAT BATS BATR PU NC NC RNG BR TST VAG VDD5A VSSA
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
AW SA SB SSB DCO DCI NC NC DCC Tx Rx DCLF1 DCLF2 VDD3
TST[0]
PWRS
BUSY
DET0
DET1
TEST
BR[0]
44 43 JTDO JTCK JTMS JTDI JTRS VDD3D PCMout PCMin PCMCLK FRAME VSSD 1 2 3 4 5 6 7 8 9 10 11
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 Rx[0] Tx[0] DCC[0] DCO[0] DCC[1] DCO[1] VSSA VAG VDD3A Tx[1] Rx[1]
12 13 14 15
16 17 18 19 20 21 22
TST[1]
BR[1]
SPICLK
RNG[1]
PU[1]
SPIin CH0
CH1
TIP
RING
TIP
RING
APPLICATION DEPENDENT PROTECTION
APPLICATION DEPENDENT PROTECTION POWER SUPPLY VDD | -5 V 0V VBAT | 22 V Vring | -68 V MC1420233
MC1430132
MC1430132
SH-POTS SPI SERIAL CONTROL BUS PCM SERIAL BUS
Figure 1. Block Diagram
2
PLLCK
SCLK
CPLL
Zout
MS140132KT
OPERATING CONDITIONS
Operating ranges define the limits for functional operation and parametric characteristics of the device. OPERATING CONDITIONS (All Voltages Referenced to VSSA = VSSB or VSS = VSSA, as Appropriate)
Limits Symbol BATR BATS DBAT VDD5A Trange VDD3D VDD3A Parameter Ringing Battery Voltage Speech Battery Voltage Difference Between the Batteries BATR and BATS, BATR-BATS Supply Voltage SHLIC Operating Temperature Range VDD of CODSP (3.3 V 8%) Min -72 -35 -40 4.75 -40 3.036 Typ -65 -32 -35 5 -- 3.3 Max - 18 - 18 0 5.5 85 3.564 Unit V V V V C V
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 (ZCO) The central-office impedance, ZCO , 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 ZCOs can be programmed to address the local requirements of specifications world-wide, and cover the range.
3
MS140132KT
(SATURATION, <0.5 V) 0V
(BIAS, 3 V)
(BIAS, 3 V)
VBATS (e.g., -24 V) (AVG. DC = VBATR/2) (BIAS, 3 V + DROP OF BAT SWITCH)
(BIAS, 3 V + DROP OF BAT SWITCH) VBATR (e.g., -64 V)
ON-HOOK
ON-HOOK ADSI
RING BURST
OFF-HOOK
Figure 1. SH-POTS Line Voltages -- Example
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).
4
MS140132KT
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, representation 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 consequential or incidental damages. "Typical" parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals", must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should 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 registered 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

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