ICS853031AYLF datasheet(1/19 Pages) ICST

Part #	ICS853031AYLF

Description	LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-2.5V/3.3V LVPECL/ECL FANOUT BUFFER

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Manufacturer	ICST [Integrated Circuit Systems]

Direct Link	http://www.icst.com

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853031AY

www.icst.com/products/hiperclocks.html

REV. B SEPTEMBER 16, 2004

1

Integrated

Circuit

Systems, Inc.

ICS853031

LOW SKEW, 1-TO-9

DIFFERENTIAL-TO-2.5V/3.3V LVPECL/ECL FANOUT BUFFER

GENERAL DESCRIPTION

The ICS853031 is a low skew, high performance

1-to-9 Differential-to-2.5V/3.3V LVPECL/ECL

Fanout Buffer and a member of the HiPerClockS™

family of High Performance Clock Solutions from

ICS. The ICS853031 has two selectable clock in-

puts. The CLK, nCLK pair can accept most standard differential

input levels. The PCLK, nPCLK pair can accept LVPECL, LVDS,

CML, or SSTL input levels. The clock enable is internally syn-

chronized to eliminate runt pulses on the outputs during asyn-

chronous assertion/deassertion of the clock enable pin.

Guaranteed output skew and part-to-part skew characteristics

make the ICS853031 ideal for high performance workstation

and server applications.

HiPerClockS™

ICS

FEATURES

• 9 differential 2.5V/3.3V LVPECL/ECL outputs

• Selectable differential CLK, nCLK or LVPECL clock inputs

• CLK, nCLK pair can accept the following differential

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

• PCLK, nPCLK supports the following input types:

LVPECL, LVDS, CML, SSTL

• Output frequency: 1.6GHz (typical)

• Translates any single ended input signal (LVCMOS, LVTTL,

GTL) to 3.3V LVPECL levels with resistor bias on nCLK or

nPCLK inputs

• Output skew: 20ps (typical)

• Part-to-part skew: 75ps (typical)

• Propagation delay: 875ps (typical)

• LVPECL mode operating voltage supply range:

V

CC = 2.375V to 3.465V, VEE = 0V

• ECL mode operating voltage supply range:

V

CC = 0V, VEE = -2.375V to -3.465V

• -40°C to 85°C ambient operating temperature

• Lead-Free package available

• Pin compatible with ICS8531-01

BLOCK DIAGRAM

PIN ASSIGNMENT

32 31 30 29 28 27 26 25

9 10 11 12 13 14 15 16

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

VCCO

Q3

nQ3

Q4

nQ4

Q5

nQ5

VCCO

ICS853031

VCC

CLK

nCLK

CLK_SEL

PCLK

nPCLK

VEE

CLK_EN

32-Lead LQFP

7mm x 7mm x 1.4mm package body

Y package

Top View

Q0

nQ0

Q1

nQ1

Q2

nQ2

Q3

nQ3

Q4

nQ4

Q5

nQ5

Q6

nQ6

Q7

nQ7

Q8

nQ8

CLK

nCLK

PCLK

nPCLK

D

Q

LE

CLK_EN

CLK_SEL

0

1

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