4-OUTPUT CK420BQ DERIVATIVE

4

DECEMBER 12, 2016

9SQL4954 DATASHEET

Test Loads

Alternate Terminations

The 9SQL family can easily drive LVPECL, LVDS, and CML logic. See “AN-891 Driving LVPECL, LVDS, and CML Logic with

IDT's "Universal" Low-Power HCSL Outputs” for details.

Terminations

Zo (Ω)Rs (Ω)

85

0

100

7.5

REF Output

33

REF Output Test Load

4.7pf

Zo = 50 ohms

L = 5 inches

R

R

Low-Power Differential Output Test Load

2pF

2pF

5 inches

Zo=85ohm

Note: The device can drive transmission line lengths greater

than those specified by the PCIe SIG

Rs

Rs