GS2993 Datasheet, PDF (4/23 Pages) Gennum Corporation – Automatic power-down on loss of signal

1. Pin Out
1.1 GS2993 Pin Assignment
VCC_A
24
1
23 22 21
20 19
18
VEE_A ²
17
SDI ³
SDI ⁴
GAIN_SEL 5
GS2993
16
24-pin QFN
(top view)
15
14
AGC
6
13
7
8
9
10 11 12
Ground Pad
(bottom of package)
SDO1
SDO1
VEE_01
VEE_02
SDO2
SDO2
Figure 1-1: GS2993 Pin Out
1.2 GS2993 Pin Descriptions
Table 1-1: GS2993 Pin Descriptions
Pin Number
1
Name
VCC_A
Timing
Analog
2
VEE_A
Analog
3, 4
SDI, SDI
Analog
5
GAIN_SEL
Not
Synchronous
6, 7
AGC, AGC
Analog
Type
Power
Power
Input
Input
–
Description
Most positive power supply connection for the input buffer, core
and control circuits of the device.
Connect to +3.3V DC.
Most negative power supply connection for the input buffer, core
and control circuits.
Connect to GND.
Serial digital differential input.
Input Sensitivity Control.
When LOW, the sensitivity is 800mV.
When HIGH, the sensitivity is 400mV.
Includes an internal pull-down resistor.
External AGC capacitor.
Connect pin 5 and pin 6 together as shown in the Typical
Application Circuit on page 19.
GS2993 Dual Output Adaptive Cable Equalizer
Data Sheet
53966 - 4
August 2012
4 of 23
Propietary & Confidential