84324EM

www.icst.com/products/hiperclocks.html

REV. A SEPTEMBER 18, 2003

1

Integrated

Circuit

Systems, Inc.

ICS84324

PRELIMINARY

The ICS84324 is a Crystal-to-3.3V LVPECL Fre-

quency Synthesizer with Fanout Buffer and a mem-

ber of the HiPerClockS™ family of High Performance

Clock Solutions from ICS. Output frequency can be

programmed using frequency select pins. The low

phase noise characteristics of the ICS84324 make it an ideal clock

source for Fibre Channel 1 and Gigabit Ethernet applications.

• 6 differential 3.3V LVPECL outputs

• Crystal oscillator interface

• Output frequency range: 53.125MHz to 125MHz

• Crystal input frequency: 25MHz and 25.5MHz

• RMS phase jitter at 106.25MHz, using a 25.5MHz crystal

(637KHz to 10Mhz): 2.69ps

• Phase noise:

Offset

Noise Power

100Hz ................. -96 dBc/Hz

1KHz ................. -115 dBc/Hz

10KHz ................. -125 dBc/Hz

100KHz ................. -127 dBc/Hz

• 3.3V supply voltage

• 0°C to 70°C ambient operating temperature

• Industrial termperature information available upon request

HiPerClockS™

,&6

Q0:Q5

ICS84324

24-Lead, 300-MIL SOIC

7.5mm x 15.33mm x 2.3mm body package

M Package

Top View

Q0

nQ0

Q1

nQ1

Q2

nQ2

Q3

nQ3

Q4

nQ4

Q5

nQ5

1

2

3

4

5

6

7

8

9

10

11

12

F_SEL0

F_SEL1

MR

XTAL1

XTAL2

PLL_SEL

PLL

Feedback

Divider

OSC

Output

Divider

0

1

XTAL1

XTAL2

F_SEL1

PLL_SEL

MR

F_SEL0

nQ0:nQ5

24

23

22

21

20

19

18

17

16

15

14

13

s

t

u

p

n

IL

A

T

Xy

c

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e

u

q

e

r

F

t

u

p

t

u

O

R

M1

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E

S

_

F0

L

E

S

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FT

U

O

_

F

1X

X

W

O

L

00

0

z

H

M

5

.

5

2z

H

M

5

2

1

.

3

5

00

1

z

H

M

5

.

5

2z

H

M

5

2

.

6

0

1

01

0

z

H

M

5

2z

H

M

5

.

2

6

01

1

z

H

M

5

2z

H

M

5

2

1

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.