Publication# 080160 Rev: D Amendment: /0
Issue Date: April 2000
Am79213/Am79C203/031
Advanced Subscriber Line Interface Circuit (ASLIC™) Device
Advanced Subscriber Line Audio-Processing Circuit
(ASLAC™) Device
DISTINCTIVE CHARACTERISTICS
G01 Performs all of the functions of a codec-filter
G01 Single channel architecture
G01 Performs Battery-feed, Ring-trip, Signaling,
Coding, Hybrid and Test (BORSCHT) functions
G01 Single hardware design meets multiple country
requirements through software programming
G01 Standard microprocessor interface
G01 Industry standard PCM interface with full-time
slot assignment
G01 Monitor of two-wire interface voltage and current
for subscriber line diagnostics
G01 Low idle power per line
G01 On-hook transmission
G01 Only battery and +5 V supplies needed
G01 Exceeds LSSGR and CCITT central office
requirements
G01 Off-hook and ground-key detectors with
programmable thresholds
G01 Programmable line feed characteristics
independent of battery voltage
G01 Built-in voice path test modes
G01 Analog and digital hybrid balance capability
G01 Adaptive hybrid balance capability
G01 Linear power feed with power management and
thermal shutdown features
G01 Abrupt and smooth polarity reversal
G01 Power-cross detection in Ringing and Non-
ringing states
G01 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
G01 Linear data available on PCM ports for custom
compression and expansion
G01 Compatible with inexpensive protection
networks. Accommodates low tolerance fuse
resistors while maintaining longitudinal balance
to Bellcore specifications.
G01 Power/Service Denial state
G01 Small physical size
G01 Integrated ring trip function
G01 Four relay drivers with built-in energy
absorption zener diodes
G01 Synchronized ring relay operation: zero volts ac
on, zero current off
G01 Software enabled Normal or Automatic Ring-Trip
state
G01 On-chip 12 kHz and 16 kHz metering generation
with on and off meter pulse shaping
G01 Supports loop-start and ground-start signaling
G01 0°C to +70°C commercial operation guaranteed
by production testing
G01 –40°C to +85°C temperature range operation
available