GS2989 Datasheet, PDF (8/19 Pages) Gennum Corporation – Dual-Slew-Rate, Dual-Output Cable Driver with 3Gb/s Capability

Table 2-2: AC Electrical Characteristics
V_CC = 3.3V ±5% or 2.5V ±5%; T_A = -40°C to +85°C, unless otherwise shown
Parameter
Symbol Conditions
Min
Typ
Max
Output Return Loss
ORL
5 MHz – 1.485GHz
17
19
–
1.485GHz – 2.97GHz
13
15
–
Output Voltage Swing
Input Voltage Swing
V_OUT
UV_DDI
R_SET = 750Ω
Guaranteed
functional.
750
800
850
100
–
250
Guaranteed to meet all
250
published
specifications.
2200
Output Enable Delay
–
–
–
–
100
Output Disable Delay
–
–
–
–
80
NOTES:
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.
Units
dB
dB
mV_p-p
mV_p-pd
mV_p-pd
ns
ns
Notes
6
6
4
–
–
–
–
GS2989 Dual-Slew-Rate, Dual-Output Cable Driver
with 3Gb/s Capability
Data Sheet
52133 - 4
December 2010
8 of 19