AM79212JC AMD (ADVANCED MICRO DEVICES), AM79212JC Datasheet - Page 4

• Manufacturer Part Number: AM79212JC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79212JC

• Lead Free Status / RoHS Status: Supplier Unconfirmed

DISTINCTIVE CHARACTERISTICS
4
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
GCI Interface
— Control and PCM on one bus
— Data rate up to 4.096 MHz
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
Compatible with inexpensive protection
networks. Accommodates low-tolerance fuse
Am79212/Am79C202 Data Sheet
P R E L I M I N A R Y
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 12/16 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