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ICS85310AYI-11

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

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS85310I-11

LOW SKEW, 1-TO-10

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

GENERAL DESCRIPTION

The ICS85310I-11 is a low skew, high perfor-

ICS

mance 1-to-10 Differential-to-2.5V/3.3V ECL/

HiPerClockS™ LVPECL Fanout Buffer and a member of the

HiPerClockS™ family of High Perfor mance

Clock Solutions from ICS. The CLKx, nCLKx

pairs can accept most standard differential input levels. The

ICS85310I-11 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 ICS85310I-11 ideal

for those clock distribution applications demanding well de-

fined performance and repeatability.

FEATURES

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

• 2 selectable differential input pairs

• CLKx, nCLKx pairs can accept the following differential

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

• Maximum output frequency: 700MHz

• Translates any single ended input signal to 3.3V

LVPECL levels with resistor bias on nCLK input

• Output skew: 30ps (typical)

• Part-to-part skew: 140ps (typical)

• Propagation delay: 2ns (typical)

• Additive phase jitter, RMS: <0.13ps (typical)

• LVPECL mode operating voltage supply range:

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

• ECL mode operating voltage supply range:

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

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

• Lead-Free package fully RoHS complaint

BLOCK DIAGRAM

CLK0

nCLK0

0

CLK1

1

nCLK1

CLK_SEL

CLK_EN

D

Q

LE

85310AYI-11

PIN ASSIGNMENT

Q0

nQ0

Q1

nQ1

32 31 30 29 28 27 26 25

Q2

nQ2

VCC 1

CLK_SEL 2

24 Q3

23 nQ3

Q3

CLK0 3

22 Q4

nQ3

Q4

nCLK0 4

CLK_EN 5

ICS85310I-11 21 nQ4

20 Q5

nQ4

CLK1 6

19 nQ5

Q5

nQ5

nCLK1 7

VEE 8

18 Q6

17 nQ6

Q6

9 10 11 12 13 14 15 16

nQ6

Q7

nQ7

32-Lead LQFP

Q8

7mm x 7mm x 1.4mm package body

nQ8

Y Package

Q9

Top View

nQ9

www.icst.com/products/hiperclocks.html

1

REV. E JULY 7, 2005

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