ICS848004I datasheet(6/11 Pages) ICST

Part #	ICS848004I

Description	FEMTOCLOCKS??CRYSTAL-TO-SSTL_2 FREQUENCY SYNTHESIZER

PDF	11 Pages

Scroll/Zoom	100%

Manufacturer	ICST [Integrated Circuit Systems]

Direct Link	http://www.icst.com

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6 / 11 page

848004AGI

www.icst.com/products/hiperclocks.html

REV. A AUGUST 18, 2005

Integrated

Circuit

Systems, Inc.

ICS848004I

FEMTOCLOCKS™CRYSTAL-TO-

SSTL_2 FREQUENCY SYNTHESIZER

PRELIMINARY

PARAMETER MEASUREMENT INFORMATION

OUTPUT RISE/FALL TIME

2.5V CORE/2.5V OUTPUT LOAD AC TEST CIRCUIT

3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT

Clock

Outputs

20%

80%

20%

t F

VSWING

tsk(o)

nQy

nQx

Phase Noise Mask

Offset Frequency

Phase Noise Plot

RMS Jitter = Area Under the Masked Phase Noise Plot

OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD

Pulse Width

PERIOD

odc =

Q0:Q3

nQ0:nQ3

RMS PHASE JITTER

OUTPUT SKEW

50 Ohm

Zo = 50 Ohm

50 Ohm

SSTL

Driv er

+1.65V +/- 10%

Zo = 50 Ohm

VDDO

SCOPE

-1.65V +/- 10%

VDD

GND

50 Ohm

GND

50 Ohm

Zo = 50 Ohm

+1.25V +/- 10%

SSTL

Driv er

SCOPE

Zo = 50 Ohm

VDDO

+1.25V +/- 10%

-1.25V +/- 10%

VDD

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