AM79C031 Datasheet, PDF (1/48 Pages) List of Unclassifed Manufacturers – Advanced Subscriber Line Interface Circuit (ASLIC) Device

Am79213/Am79C203/031
Advanced Subscriber Line Interface Circuit (ASLIC™) Device
Advanced Subscriber Line Audio-Processing Circuit
(ASLAC™) Device
DISTINCTIVE CHARACTERISTICS

Performs all of the functions of a codec-filter

Single channel architecture

Performs Battery-feed, Ring-trip, Signaling,
Coding, Hybrid and Test (BORSCHT) functions

Single hardware design meets multiple country
requirements through software programming

Standard microprocessor interface

Industry standard PCM interface with full-time
slot assignment

Monitor of two-wire interface voltage and current
for subscriber line diagnostics

Low idle power per line

On-hook transmission

Only battery and +5 V supplies needed

Exceeds LSSGR and CCITT central office
requirements

Off-hook and ground-key detectors with
programmable thresholds

Programmable line feed characteristics
independent of battery voltage

Built-in voice path test modes

Analog and digital hybrid balance capability

Adaptive hybrid balance capability

Linear power feed with power management and
thermal shutdown features

Abrupt and smooth polarity reversal

Power-cross detection in Ringing and Non-
ringing states

Software programmable
— DC loop feed characteristics and current limit
— Loop supervision detection thresholds
— Off-hook detect debounce interval
— Two-wire AC impedance
— Transhybrid balance
— Transmit and receive gains
— Equalization
— Digital I/O pins
— A-law/µ-law selection

Linear data available on PCM ports for custom
compression and expansion

Compatible with inexpensive protection
networks. Accommodates low tolerance fuse
resistors while maintaining longitudinal balance
to Bellcore specifications.

Power/Service Denial state

Small physical size

Integrated ring trip function

Four relay drivers with built-in energy
absorption zener diodes

Synchronized ring relay operation: zero volts ac
on, zero current off

Software enabled Normal or Automatic Ring-Trip
state

On-chip 12 kHz and 16 kHz metering generation
with on and off meter pulse shaping

Supports loop-start and ground-start signaling

0°C to +70°C commercial operation guaranteed
by production testing

–40°C to +85°C temperature range operation
available
Publication# 080160 Rev: D Amendment: /0
Issue Date: April 2000