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