10

Integrated

Circuit

Systems, Inc.

ICS932S401

0921G—08/24/09

Test Load

CL=5pF

Rs

Zo

ICS932S401

SEPP Output Buffer

(Single Ended

Push Pull)

Rs

Zo

Rs

Zo

SEPP Output Buffer

(Single Ended

Push Pull)

CL=5pF

CL=5pF

The singled-ended outputs of the ICS 932S401E default to a drive strength of 2

loads. The REF clocks can be turned down to 1-load strength via the SMBus.

Suggested termination resistors are as follows for transmission lines with Zo =

50 ohms:

Driving 1 load, Rs = 33 ohms

Driving 2 loads, Rs = 7.5 ohms

Single-ended outputs at 1-load strength (REF clock only)

Driving 1 load, Rs = 22 ohms

Single-ended outputs at 2-load strength (Power up default

for all single-ended outputs)

Single-ended Output Terminations