GENERAL DESCRIPTION

The MSM 7564-01 is a highly integrated single-chip modem IC which provides the functions needed to construct 14.4 kbps full-duplex and half-duplex modems. This device is compliant with the following data communication formats : ITU-T Recommendation V.32bis, V.32, V.22bis, V.21 and Bell standard Bell 212A and Bell103 modes, and facsimile communication formats : ITU-T Recommendation V.17, V29, V.27ter, V.21 ch2.

This device contains fundamental functions : high speed DSP, analog front end, and digital logic circuit. It also provides additional circuits such as test functions, synchronous-asynchronous conversion circuit, DTMF generator/detector, programmable tone generator/detector, voice output function and sleep mode. The MSM7564-01 is designed to provide a microprocessor peripheral to interface with popular single-chip microprocessors for the control of modem functions through its 8-bit multiplexed address/data bus.

FEATURES

? Data mode :

ITU-T Recommendation V.32bis, V.32, V.22bis, V.22, V.21

Bell standard Bell 212A, Bell103

? Fax mode : ITU-T Recommendation V.17, V.29, V.27ter, V.21 ch2

? Synchronous/Asynchronous conversion

? Scrambler/Descrambler

? DTMF, answer tone, and guard tone generator

? Programmable transmit attenuation (15 dB, 1 dB steps)

? Call progress, answer tone, DTMF, and carrier detector

? Receiving signal quality monitor

? Independent adaptive line equalization for transmit and receive

? Carrier detection level selectable (4 steps)

? Echo canceler

? Jitter canceler

? Programmable tone generator/detector

? Voice output function

? Test mode :

Local analog loop (internal/external)

Remote digital loop

511PN pattern generator for error test

1:1 pattern generator for error test

Error counter

? Sleep mode

? Single +5 V DC supply

? CMOS technology for low power consumption

Operation mode : 500 mW Typ. @ +5 V

Sleep mode : < 10 mW @ +5 V

? Package options:

144-pin plastic TQFP (TQFP144-P-2020-K) (Product name : MSM7564-01GS-K)

84-pin plastic QFJ (QFJ84-P-S115) (Product name : MSM7564-01JS)