am79c02 Advanced Micro Devices, am79c02 Datasheet

am79c02

Manufacturer Part Number

am79c02

Description

Dual Subscriber Line Audio Processing Circuit Dslac Devices

Manufacturer

Advanced Micro Devices

Datasheet

1.AM79C02.pdf (48 pages)

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Am79C02/03/031(A)

Dual Subscriber Line Audio Processing Circuit (DSLAC

DISTINCTIVE CHARACTERISTICS

Software programmable:

— SLIC impedance

— Transhybrid balance

— Transmit and receive gains

— Equalization

— Digital I/O pins

— Time Slot Assigner

— PCM transmit clock edge options

Adaptive transhybrid balance filter

(A suffix only)

A-law or µ-law coding

Dual PCM ports

— Up to 8.192 MHz each (128 channels per port)

2.048 MHz or 4.096 MHz master clock

Direct transformer drive

Built-in test modes

Low power CMOS

Mixed mode (analog and digital) impedance

scaling

Performance characteristics guaranteed over

12 dB gain range

GENERAL DESCRIPTION

The Am79C02/03/031(A) Dual Subscriber Line Audio

Processing Circuit (DSLAC device) integrates the key

functions of an analog linecard into a single high-per-

formance, programmable dual codec/filter device. The

DSLAC device is based on the proven design of the

reliable Am7901A Subscriber Line Audio Processing

Circuit (SLAC

the DSLAC device implements two independent chan-

nels and employs digital filters to allow software control

of transmission, thus providing a cost effective solution

for the analog to PCM function of a linecard.

The Am79C02/03/031(A) DSLAC device’s advanced

CMOS technology makes this an economical device

that has both the functionality and the low power con-

sumption needed in linecard designs to maximize line-

card density at minimum cost. When used with two AMD

SLICs, the DSLAC device provides software config-

urable solutions to the BORSCHT function.

™

device). The advanced architecture of

Publication# 09875 Rev: J

Issue Date: December 1999

™

) Devices

Amendment: /0

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