1. Pin Out
1.1 Pin Assignment
16
15
14
13
12
11
10
9
1
DDI
SDO
GS2988
16-pin QFN
(top view)
2
DDI
SDO
3
SD/HD
VEE
4
VCC
RSET
5
6
7
8
Ground Pad
(bottom of package)
Figure 1-1: 16-Pin QFN
1.2 Pin Descriptions
Table 1-1: Pin Descriptions
Pin Number
Name
Type
Description
1, 2
3
DDI, DDI
VEE
Input
Serial data differential input.
Power
Most negative power supply connection for the input buffer and core.
Connect to GND.
4
RSET
N/C
Input
External output amplitude control resistor connection.
5, 7, 8, 13, 15
−
No Connect.
These pins are not connected internally.
6
9
DISABLE
Input
Control signal input.
When set LOW, the entire device is powered-down.
When set HIGH, the SDO/SDO pins will output a serial data signal.
NOTE: if this pin is left floating, the serial data output will be enabled.
VCC
Power
Most positive power supply connection.
Connect to 3.3V or 2.5V.
GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s
4 of 17
Capability
Data Sheet
52131 - 4
December 2010
GENNUM [ GENNUM CORPORATION ]
