889874AK

www.icst.com/products/hiperclocks.html

REV. A MAY 19, 2004

9

Integrated

Circuit

Systems, Inc.

ICS889874

1:2

PRELIMINARY

Ω

Ω

Ω

Ω

The IN /nIN with built-in 50

Ω terminations accepts LVDS,

LVPECL, LVHSTL, CML, SSTL and other differential signals.

requirements.

Figures 4A to 4D show interface examples for the

HiPerClockS IN/nIN input with built-in 50

Ω terminations driven

by the most common driver types. The input interfaces sug-

gested here are examples only. If the driver is from another ven-

dor, use their termination recommendation. Please consult with

the vendor of the driver component to confirm the driver termi-

nation 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