AM79212JC AMD (ADVANCED MICRO DEVICES), AM79212JC Datasheet - Page 9

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

Specifications of AM79212JC

• Lead Free Status / RoHS Status: Supplier Unconfirmed

VDC
DC Loop Voltage (Output)
The voltage on this output is referenced to VREF and
is proportional to the negative absolute value of the DC
subscriber loop voltage between A and B. This voltage
is a fraction ( ) of the voltage between HPA and HPB.
This pin connects to the IAB pin on the ASLAC device
through the external resistor RAB. A voltage that is
significantly more positive than VREF on the VDC pin
indicates that the ASLIC device is in thermal shutdown.
VLBIAS
Longitudinal Offset Voltage (Input)
The input to this pin is the offset reference voltage for
the ASLIC device longitudinal control loop.
P R E L I M I N A R Y
ASLIC/ASLAC Products
VREF
Analog Reference (Input)
This voltage is provided by the ASLAC device and is used
by the ASLIC device for internal reference purposes. All
analog input and output signals interfacing to the ASLAC
device are referenced to this pin. Nominally set to 2.1 V.
VTX
Four-Wire Transmit Signal (Output)
The voltage between this pin and VREF is a scaled
version of the AC component of the voltage sensed
between the SA and SB pins. One end of the two-wire
input impedance programming network connects to
VTX. The voltage at VTX swings positive and negative
about VREF.
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