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ICS844256D

FemtoClock® Crystal-to-LVDS Frequency Synthesizer w/Integrated Fanout Buffer

Integrated Device Technology 

ICS844256D Data Sheet

FEMTOCLOCK® CRYSTAL-TO-LVDS FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER

Parameter Measurement Information

3.3V±5%

POWER SUPPLY

+ Float GND –

VDD,

VDDO

VDDA

LVDS

SCOPE

Qx

nQx

VDD

VDDA

VDDO

LVDS

SCOPE

Qx

nQx

++ –

POWER

SUPPLY

Float GND

3.3V Core/3.3V Output Load AC Test Circuit

nQx

Qx

nQy

Qy

t sk(o)

Output Skew

nQ[0:5]

Q[0:5]

t PW

t

PERIOD

odc = t PW x 100%

t PERIOD

Output Duty Cycle/Pulse Width/Period

3.3V Core/2.5V Output Load AC Test Circuit

Phase Noise Plot

f1 Offset Frequency f2

RMS Jitter = Area Under Curve Defined by the Offset Frequency Markers

RMS Phase Jitter

nQ[0:5]

Q[0:5] 20%

80%

tR

80%

tF

VOD

20%

Output Rise/Fall Time

ICS844256DG REVISION A AUGUST 5, 2010

8

©2010 Integrated Device Technology, Inc.

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