AM79212JC AMD (ADVANCED MICRO DEVICES), AM79212JC Datasheet - Page 13

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

Specifications of AM79212JC

• Lead Free Status / RoHS Status: Supplier Unconfirmed

adjustment (equalization) of the receive and transmit
paths. Adaptive transhybrid balancing is also included.
The PCM data can be either 8-bit companded A-law or
µ-law code. Voice and control data are read or written
to the digital interface in channels that are pin strap
compatible.
Besides the CODEC functions, the ASLAC device
provides all the sensing, feedback, and clocking
necessary to completely control ASLIC device
functions with programmable parameters. System-
level parameters under programmable control include
active and disable loop-current limits, feed resistance,
and apparent battery-feed voltage. The longitudinal
operating point is programmable to optimize the ASLIC
device signal swing capability.
P R E L I M I N A R Y
ASLIC/ASLAC Products
The ASLAC device provides signals at 12 or 16 kHz for
metering functions. The frequency and level of these
signals are programmable.
The ASLAC device provides extensive loop supervision
capability, including off-hook, ring-trip, and ground-key
detection. Detection thresholds for these functions are
programmable. A programmable debounce timer is
available that eliminates false detection due to contact
bounce. For subscriber line diagnostics, AC and DC line
conditions can be monitored using special test modes.
Results are sent upstream over the control interface.
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