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ICS853111A02L

LOW SKEW, 1-TO-10 DIFFERENTIAL-TO-2.5V/3.3V LVPECL/ECL FANOUT BUFFER

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS853111-02

LOW SKEW, 1-TO-10

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

GENERAL DESCRIPTION

The ICS853111-02 is a low skew, high per-

ICS

formance 1-to-10 Differential-to-2.5V/3.3V

HiPerClockS™ LVPECL/ECL Fanout Buffer and a member

of the HiPerClockS™family of High Perfor-

mance Clock Solutions from ICS. The

ICS853111-02 is characterized to operate from either

a 2.5V or a 3.3V power supply. Guaranteed output and

part-to-part skew characteristics make the ICS853111-

02 ideal for those clock distribution applications de-

manding well defined perfor mance and repeatability.

FEATURES

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

• Two selectable differential input pairs

• PCLKx, nPCLKx pairs can accept the following

differential input levels: LVPECL, LVDS, CML, SSTL

• Maximum output frequency: 3.2GHz

• Translates any single ended input signal to 3.3V

LVPECL levels with resistor bias on nPCLK input

• Output skew: 25ps (typical)

• Part-to-part skew: 85ps (typical)

• Propagation delay: 680ps (typical)

• Jitter, RMS: < 0.03ps (typical)

• LVPECL mode operating voltage supply range:

V = 2.375V to 3.8V, V = 0V

CC

EE

• ECL mode operating voltage supply range:

VCC = 0V, VEE = -3.8V to -2.375V

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

• Available in both standard and lead-free RoHS-compliant

packages

BLOCK DIAGRAM

PCLK0

nPCLK0

0

PCLK1

1

nPCLK1

CLK_SEL

VBB

PIN ASSIGNMENT

Q0

nQ0

Q1

nQ1

24 23 22 21 20 19 18 17

Q2

nQ2

VCCO 2 5

nQ2 26

1 6 VCCO

15 Q7

Q2 27

14 nQ7

Q3

nQ3

nQ1 28 ICS853111-02 13 Q8

Q1 29

12 nQ8

Q4

nQ4

nQ0 30

11 Q9

Q0 31

10 nQ9

Q5

nQ5

VCCO 3 2

9 VCCO

123456 78

Q6

nQ6

Q7

nQ7

Q8

32-Lead TQFP

nQ8

7mm x 7mm x 1.0mm package body

Q9

Y Package

nQ9

Top View

The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial

product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.

853111AY-02

www.icst.com/products/hiperclocks.html

REV. A JANUARY 10, 2006

1

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