PI49FCT3803LE Ver la hoja de datos (PDF) - Pericom Semiconductor

Número de pieza

componentes Descripción

Lista de partido

PI49FCT3803LE

1:5/1:7 Clock Buffer for Networking Applications

Pericom Semiconductor 

Switching Waveforms

Propagation Delay

Input

Output

tPLH

tR

PI49FCT3802/PI49FCT3803

1:5/1:7 Clock Buffers

for Networking Applications

3V

1.5V

0V

tPHL

VOH

2.0V

1.5V

0.8V

VOL

tF

Pulse Skew – tSK(P)

Input

tPLH

tPHL

Output

tSK(p) = | tPHL – tPLH |

3V

1.5V

0V

VOH

1.5V

VOL

Output Skew – tSK(O)

Input

tPLHx

CLKx

tSK(o)

CLKy

tPLHy

3V

1.5V

tPHLx

0V

VOH

1.5V

VOL

tSK(o)

VOH

1.5V

VOL

tPHLy

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

Test Circuits for All Outputs

VDD

VIN

Pulse

Generator

D.U.T.

VOUT

CL

Package Skew – tSK(T)

Input

tPLH1

Package 1

Output

tSK(t)

Package 2

Output

tPLH2

3V

1.5V

tPHL1

0V

VOH

1.5V

VOL

tSK(t)

VOH

1.5V

VOL

tPHL2

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

Definitions:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance, should be equal to Zout of the

Pulse Generator.

4

PS8559A 09/14/04

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