854057AG

www.icst.com/products/hiperclocks.html

REV. A JULY 18, 2005

9

Integrated

Circuit

Systems, Inc.

ICS854057

WITH

Ω

Ω

Ω

Ω

The PCLK /nPCLK with built-in 50

Ω terminations accepts

LVDS, LVPECL, LVHSTL, CML, SSTL and other differential

input requirements.

Figures 3A to 3E show interface

examples for the HiPerClockS PCLK/nPLCK input with built-in

50

Ω terminations driven by the most common driver types.The

input interfaces suggested here are examples only. If the driver

is from another vendor, use their termination recommendation.

Please consult with the vendor of the driver component to

confirm the driver termination requirements.

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

IN

nIN

VT

2.5V

LVDS

3.3V or 2.5V

Zo = 50 Ohm

Zo = 50 Ohm

Receiver

With

Built-In

50 Ohm

Zo = 50 Ohm

Receiver

With

Built-In

50 Ohm

Zo = 50 Ohm

IN

nIN

VT

2.5V

2.5V

R1

18

2.5V LVPECL

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

WITH

Ω

Ω

Ω

Ω

Zo = 50 Ohm

2.5V

Zo = 50 Ohm

IN

nIN

VT

Receiver

With

Built-In

50 Ohm

2.5V

CML - Open Collector

IN

nIN

VT

Receiver

With

Built-In

50 Ohm

2.5V

Zo = 50 Ohm

Zo = 50 Ohm

CML - Built-in 50 Ohm Pull-up

2.5V

2.5V

2.5V

SSTL

R1

25

R2

25

IN

VT

nIN

Receiver With Built-In 50

Ω

Zo = 50 Ohm

Zo = 50 Ohm