ICS8534AY-01LF datasheet(1/20 Pages) IDT

Part #	ICS8534AY-01LF

Description	LOW SKEW, 1-TO-22 DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER

PDF	20 Pages

Scroll/Zoom	100%

Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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LOW SKEW, 1-TO-22 DIFFERENTIAL-TO-3.3V LVPECL

FANOUT BUFFER

ICS8534-01

IDT™ / ICS™ 3.3V LVPECL FANOUT BUFFER

1

ICS8534AY-01 REV. A DECEMBER 6, 2007

General Description

The ICS8534-01 is a low skew, 1-to-22

Differential-to-3.3V LVPECL Fanout Buffer and a

member of the HiPerClockS™ Family of High

Performance Clock Solutions from IDT. The

ICS8534-01 has two selectable clock inputs. The

CLK, nCLK pair can accept most standard differential input levels.

The PCLK, nPCLK pair can accept LVPECL, CML, or SSTL input

levels. The device is internally synchronized to eliminate runt

pulses on the outputs during asynchronous assertion/deassertion

of the OE pin. The ICS8534-01’s low output and part-to-part skew

characteristics make it ideal for workstation, server, and other high

performance clock distribution applications.

Features

• Twenty-two differential LVPECL outputs

• Selectable differential CLK/nCLK or LVPECL clock inputs can

accept the following differential input levels: LVDS, LVPECL,

LVHSTL

• CLK/nCLK pair can accept the following differential input levels:

LVPECL, LVDS, LVHSTL, HCSL, SSTL

• PCLK/nPCLK supports the following input levels: LVPECL,

CML, SSTL

• Maximum output frequency: 500MHz

• Output skew: 100ps (maximum)

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

GTL) to LVPECL levels with resistor bias on nCLK input

• Additive phase jitter, RMS): 0.04ps (typical)

• Full 3.3V supply mode

• 0°C to 85°C ambient operating temperature

• Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages.

HiPerClockS™

ICS

Block Diagram

Pin Assignment

Q0:Q21

nQ0:nQ21

CLK_SEL

OE

CLK

nCLK

PCLK

nPCLK

D

LE

Q

0

1

22

Pullup

Pulldown

Pullup/Pulldown

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

VCCO

nQ6

Q6

Q5

nQ4

Q4

nQ3

nQ5

VCCO

nQ2

Q3

Q2

nQ1

Q1

nQ0

Q0

nQ14

Q15

nQ15

Q14

Q16

VCCO

nQ16

Q17

VCCO

nQ17

Q18

nQ18

Q19

nQ19

Q20

nQ20

ICS8534-01

64-Lead TQFP E-Pad

10mm x 10mm x 1.0mm package body

Y package

Top View

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