Table 2-2: AC Electrical Characteristics
V
= 3.3V 5ꢀ or 2.5V 5ꢀ; T = -40°C to +85°C, unless otherwise shown
A
CC
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Notes
Output Return Loss
ORL
5 MHz – 1.485GHz
17
13
19
15
–
–
dB
dB
6
6
4
1.485GHz – 2.97GHz
Output Voltage Swing
Input Voltage Swing
V
R
= 750Ω
750
800
850
mV
p-p
OUT
SET
UV
Guaranteed
functional.
100
250
–
250
mV
mV
–
–
DDI
p-pd
Guaranteed to meet all
published
2200
p-pd
specifications.
Output Enable Delay
Output Disable Delay
NOTES:
–
–
–
–
–
–
–
–
100
80
ns
ns
–
–
1. The input coupling capacitor must be set accordingly for lower data rates.
2. Turning on input trace equalization will reduce jitter in most applications.
3. Rise/Fall time measured between 20% and 80% applies to 800mV output swing only.
4. Single-ended into a 75Ω external load.
5. Calculated as the actual positive bit-width compared to the expected positive bit-width using a 1010 pattern.
6. ORL depends on board design. The GS2989 achieves this specification on Gennum's evaluation boards.
GS2989 Dual-Slew-Rate, Dual-Output Cable Driver
with 3Gb/s Capability
8 of 19
Data Sheet
52133 - 4
December 2010
GENNUM [ GENNUM CORPORATION ]
