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ICS8442

700MHZ, CRYSTAL OSCILLATOR-TO-DIFFERENTIAL LVDS FREQUENCY SYNTHESIZER

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS8442

700MHZ, CRYSTAL OSCILLATOR-TO-DIFFERENTIAL

LVDS FREQUENCY SYNTHESIZER

PARAMETER MEASUREMENT INFORMATION

3.3V±5%

Power Supply

+ Float GND -

LVDS

SCOPE

Qx

VDD

DC Input LVDS

nQx

out

➤

out

VOS/∆ VOS

3.3V OUTPUT LOAD TEST CIRCUIT

VDD

DC Input LVDS

VOS / ∆VOS SETUP

nFOUTx

out

FOUTx

➤

100

VOD/∆ VOD

nFOUTy

out

FOUTy

t sk(o)

VOD / ∆VOD SETUP

OUTPUT SKEW

nFOUT0,

nFOUT1

FOUT0,

FOUT1

tcycle n

➤

tcycle n+1

➤

t jit(cc) = tcycle n –tcycle n+1

1000 Cycles

Cycle-to-Cycle Jitter

VOH

VREF

1σ contains 68.26% of all measurements

VOL

2σ contains 95.4% of all measurements

3σ contains 99.73% of all measurements

4σ contains 99.99366% of all measurements

6σ contains (100-1.973x10-7)% of all measurements

Reference Point

(Trigger Edge)

Histogram

Mean Period

(First edge after trigger)

Period Jitter

nFOUT0, nFOUT1

FOUT0, FOUT1

odc & tPERIOD

Pulse Width

t

PERIOD

odc = t PW

t PERIOD

Clock

20%

Outputs

80%

tR

OUTPUT RISE/FALL TIME

80%

tF

VSW I N G

20%

8442AY

www.icst.com/products/hiperclocks.html

7

REV. C JULY 8, 2004

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