3. Input/Output Circuits
V
V
CC
CC
DDI
DDI
EQ RC*
SDO
SDO
V
cc
V
CC
I
REF
5k
50
50
10k
*RC Network
700p
for Trace Equalization
Figure 3-2: Differential Output Stage (SDO1/SDO1,
SDO2/SDO2)
Figure 3-1: Differential Input Stage (DDI/DDI)
V
CC
Pull-up
80μA typical
(50-150μA)
IN
IN
Pull-down
80μA typical
(50-150μA)
VREF
VREF
Figure 3-3: Control Input (DISABLE1, SD/HD, EQ_EN)
Figure 3-4: Control Input (DISABLE2)
GS2989 Dual-Slew-Rate, Dual-Output Cable Driver
with 3Gb/s Capability
9 of 19
Data Sheet
52133 - 4
December 2010