3

PI49FCT20807

1-10 Clock Buffer for Networking Applications

www.pericom.com

09/25/14

Note:

1. Thisparameterisdeterminedbydevicecharacterizationbutisnotproductiontested.

Graph 1. Dynamic Current vs. Clock Frequency

Notes:

1. Seetestcircuitandwaveforms.

2. Skew measured at worse cast temperature (max. temp).

Test Circuits for All Outputs

Definitions:

Pulse

Generator

D.U.T.

160

140

120

100

80

60

Clock Frequency [MHz]

40

20

0

0

50

100

150

200

Load = 15pF & 33 ohms

Load = 0

Description

Test Conditions

Typ.

Max.

Units

Input Capacitance

3

4

pF

Output Capacitance

6

Paramete-

rs

Description

Min.

Typ.

Max. Unit-

s

CLKn Rise/Fall Time 0.7V ~ 1.7 V

–

1.0

1.25

ns

–

1.0

1.2

Propagation Delay BUF_IN to CLKn

–

3.0

3.5

–

2.4

2.7

Skew between two outputs of the same

package

(same transition)

–

100

150

ps

–

100

150

of the same output

–

250

300

–

250

300

Skew between two outputs of different package

(4)

–

400

600