PI49FCT3807ASE datasheet(4/7 Pages) PERICOM

4 / 7 page

PI49FCT3807

3.3V Fast CMOS Clock Driver

PS7010D

09/08/04

Switching Waveforms

Propagation Delay

Package Skew – tSK(t)

Pulse Skew – tSK(p)

Output Skew – tSK(o)

Switch Position

Test

Switch

Disable LOW

Enable LOW

Disable HIGH

Enable HIGH

GND

All Other Inputs

Open

Definitions:

CL = Load capacitance: includes jig and

probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse

Generator.

Pulse

Generator

D.U.T.

VIN

VOUT

VDD

Tests Circuits for All Outputs(1)

Input

tPLH

1.5V

Output

VOH

1.5V

VOL

tPHL

2.0V

0.5V

Input

tPLH

1.5V

Output

VOH

1.5V

VOL

tPHL

tSK(p) =  tPHL – tPLH 

Input

tPLHx

1.5V

VOH

1.5V

VOL

tPHLx

tSK(o)

VOH

1.5V

VOL

tSK(o)

tPLHy

tPHLy

tSK(o) =  tPLHy – tPLHx  or  tPHLy – tPHLx 

Input

tPLH1

1.5V

Package 1

Output

VOH

1.5V

VOL

tPHL1

tSK(t)

Package 2

Output

VOH

1.5V

VOL

tSK(t)

tPLH2

tPHL2

tSK(t) =  tPLH2 – tPLH1  or  tPHL2 – tPHL1 

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