Table 1-1: GS1574A Pin Descriptions (Continued)
Pin
Number
9
Name
VEE_D
Timing
Analog
Type
Power
Description
Most negative power supply for the digital circuitry and output buffer.
Connect to GND.
10, 11
12
SDO, SDO
VEE_D
Analog
Analog
Output
Power
Equalized serial digital differential output.
Most negative power supply for the digital circuitry and output buffer.
Connect to GND.
13
VCC_D
Analog
Power
Most positive power supply for the digital I/O pins of the device.
Connect to +3.3V DC.
14
MUTE
Not
Synchronous
Input
CONTROL SIGNAL INPUT
levels are LVCMOS/LVTTL compatible. (3.3V Tolerant)
When the MUTE pin is set HIGH by the application interface, the serial
digital output of the device will be forced to a steady state.
When the MUTE pin is set LOW, the serial digital output of the device will
be active.
NOTE: This pin may be connected directly to the CD pin to allow mute on
loss of carrier.
15
CD
Not
Synchronous
Output
STATUS SIGNAL OUTPUT
Signal levels are LVCMOS/LVTTL compatible.
Indicates the presence of a good input signal.
When the CD pin is LOW, a good input signal has been detected.
When this pin is HIGH, the input signal is invalid.
This pin will indicate loss of carrier for data rates > 19Mb/s.
16
VCC_A
Analog
Power
Most positive power supply for the analog circuitry of the device.
Connect to +3.3V DC.
–
Center Pad
–
Power
Internally bonded to VEE_A.
GS1574A HD-LINX® II Adaptive Cable Equalizer
Data Sheet
33416 - 10
August 2011
5 of 16
GENNUM [ GENNUM CORPORATION ]
