ICS85408BGLF datasheet(1/12 Pages) ICST

部品番号	ICS85408BGLF

部品情報	LOW SKEW, 1-TO-8 DIFFERENTIAL-TO-LVDS CLOCK DISTRIBUTION CHIP

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メーカー	ICST [Integrated Circuit Systems]

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85408BG

www.icst.com/products/hiperclocks.html

REV. A APRIL 25, 2005

1

Integrated

Circuit

Systems, Inc.

ICS85408

LOW SKEW, 1-TO-8

DIFFERENTIAL-TO-LVDS CLOCK DISTRIBUTION CHIP

GENERAL DESCRIPTION

The ICS85408 is a low skew, high performance

1-to-8 Differential-to-LVDS Clock Distribution

Chip and a member of the HiPerClockS™

family of High Performance Clock Solutions

from ICS. The ICS85408 CLK, nCLK pair can ac-

cept most differential input levels and translates them to 3.3V

LVDS output levels. Utilizing Low Voltage Differential

Signaling (LVDS), the ICS85408 provides a low power, low

noise, low skew, point-to-point solution for distributing LVDS

clock signals.

Guaranteed output and part-to-part skew specifications make

the ICS85408 ideal for those applications demanding well

defined performance and repeatability.

FEATURES

• 8 Differential LVDS outputs

• CLK, nCLK pair can accept the following differential

input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL

• Maximum output frequency: 700MHz

• Translates any differential input signal (LVPECL, LVHSTL,

SSTL, HCSL) to LVDS levels without external bias networks

• Translates any single-ended input signal to LVDS with

resistor bias on nCLK input

• Multiple output enable inputs for disabling unused outputs

in reduced fanout applications

• Output skew: 50ps (maximum)

• Part-to-part skew: 550ps (maximum)

• Propagation delay: 2.4ns (maximum)

• 3.3V operating supply

• 0°C to 70°C ambient operating temperature

• Lead-Free package RoHS compliant

HiPerClockS™

ICS

BLOCK DIAGRAM

PIN ASSIGNMENT

ICS85408

24-Lead, 173-MIL TSSOP

4.4mm x 7.8mm x 0.92mm body package

G Package

Top View

nQ6

Q6

nQ5

Q5

nQ4

Q4

nQ3

Q3

nQ2

Q2

nQ1

Q1

1

2

3

4

5

6

7

8

9

10

11

12

Q7

nQ7

OE

GND

VDD

GND

VDD

CLK

nCLK

Q0

nQ0

24

23

22

21

20

19

18

17

16

15

14

13

CLK

nCLK

Q0

nQ0

Q1

nQ1

Q2

nQ2

Q3

nQ3

Q4

nQ4

Q5

nQ5

Q6

nQ6

Q7

nQ7

OE

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