ICS8442 datasheet(7/15 Pages) ICST

7 / 15 page

8442AY

www.icst.com/products/hiperclocks.html

REV. C JULY 8, 2004

Integrated

Circuit

Systems, Inc.

ICS8442

700MHZ, CRYSTAL OSCILLATOR-TO-DIFFERENTIAL

LVDS FREQUENCY SYNTHESIZER

PARAMETER MEASUREMENT INFORMATION

OUTPUT SKEW

odc & t

PERIOD

Cycle-to-Cycle Jitter

Period Jitter

VOH

VREF

VOL

Mean Period

(First edge after trigger)

Reference Point

(Trigger Edge)

σ contains 68.26% of all measurements

σ contains 95.4% of all measurements

σ contains 99.73% of all measurements

σ contains 99.99366% of all measurements

σ contains (100-1.973x10-7)% of all measurements

Histogram

OUTPUT RISE/FALL TIME

Clock

Outputs

20%

80%

20%

t F

VSWING

Pulse Width

PERIOD

odc =

nFOUT0, nFOUT1

FOUT0, FOUT1

➤

nFOUT0,

nFOUT1

FOUT0,

FOUT1

tsk(o)

nFOUTx

FOUTx

nFOUTy

FOUTy

OS /

∆∆∆∆∆VOS SETUP

VOD /

∆∆∆∆∆VOD SETUP

3.3V OUTPUT LOAD TEST CIRCUIT

out

LVDS

DC Input

➤

VOS/∆ VOS

➤

100

out

LVDS

DC Input

VOD/∆ VOD

SCOPE

nQx

LVDS

3.3V±5%

Power Supply

Float GND

tcycle n

tcycle n+1

tjit(cc) = tcycle n –tcycle n+1

1000 Cycles

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