ICS853031 Просмотр технического описания (PDF) - Integrated Circuit Systems

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ICS853031

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

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS853031

LOW SKEW, 1-TO-9

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

GENERAL DESCRIPTION

FEATURES

ICS

HiPerClockS™

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™

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

• Selectable differential CLK, nCLK or LVPECL clock inputs

family of High Performance Clock Solutions from • CLK, nCLK pair can accept the following differential

ICS. The ICS853031 has two selectable clock in- input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL,

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-

• PCLK, nPCLK supports the following input types:

LVPECL, LVDS, CML, SSTL

chronized to eliminate runt pulses on the outputs during asyn- • Output frequency: 1.6GHz (typical)

chronous assertion/deassertion of the clock enable pin.

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

Guaranteed output skew and part-to-part skew characteristics GTL) to 3.3V LVPECL levels with resistor bias on nCLK or

make the ICS853031 ideal for high performance workstation nPCLK inputs

and server applications.

• Output skew: 20ps (typical)

• Part-to-part skew: 75ps (typical)

• Propagation delay: 875ps (typical)

• LVPECL mode operating voltage supply range:

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

• ECL mode operating voltage supply range:

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

CC

EE

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

• Lead-Free package available

• Pin compatible with ICS8531-01

BLOCK DIAGRAM

PIN ASSIGNMENT

CLK_EN

CLK

nCLK

0

PCLK

nPCLK

1

CLK_SEL

D

Q

LE

32 31 30 29 28 27 26 25

Q0

nQ0

VCC 1

CLK 2

2 4 VCCO

23 Q3

Q1

nCLK 3

22 nQ3

nQ1

CLK_SEL 4

PCLK 5

ICS853031

21 Q4

20 nQ4

Q2

nQ2

nPCLK 6

19 Q5

Q3

nQ3

VEE

CLK_EN

7

18

8

17

9 10 11 12 13 14 15 16

nQ5

VCCO

Q4

nQ4

Q5

nQ5

32-Lead LQFP

Q6

7mm x 7mm x 1.4mm package body

nQ6

Y package

Top View

Q7

nQ7

Q8

nQ8

853031AY

www.icst.com/products/hiperclocks.html

1

REV. B SEPTEMBER 16, 2004

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