ICS843252AGLF 데이터 시트보기 (PDF) - Integrated Circuit Systems

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ICS843252AGLF

FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

PRELIMINARY

ICS843252

FEMTOCLOCKS™CRYSTAL-TO-3.3V LVPECL

FREQUENCY SYNTHESIZER

PARAMETER MEASUREMENT INFORMATION

2V

VCC,

V ,V

CCA CCO_A. _B

LVPECL

VEE

-1.3V±0.165V

nQx

SCOPE

Qx

Qx

nQy

nQx

Qy

t sk(o)

3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT

OUTPUT SKEW

Phase Noise Plot

Phase Noise Mask

f1 Offset Frequency f2

RMS Jitter = Area Under the Masked Phase Noise Plot

Clock

20%

Outputs

80%

tR

RMS PHASE JITTER

OUTPUT RISE/FALL TIME

80%

tF

VSW I N G

20%

nQA, nQB

QA, QB

t PW

t

PERIOD

odc = t PW x 100%

t PERIOD

OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD

843252AG

www.icst.com/products/hiperclocks.html

8

REV. A NOVEMBER 9, 2005

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