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PT7C4050

PLL with Integrated VCXO

Pericom Semiconductor 

Data Sheet

PT7C4050

PLL with Integrated VCXO

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Features

Description

• PLL with quartz stabilized VCXO

• Crystal output jitter less than 20ps

• Dual redundant reference input clocks with loss of

signal detection

• Manual or automatic switch over between reference

input clocks

• VCXO provides smooth output transition during

switch over of input clocks

• Lock detection

• Selectable metal mask options for phase detectors,

op. Amps, and charge pump

• Loss of signals alarm

• Return to nominal clock upon LOS

• Input data rates from 8 kb/s to 40 Mb/s

• Tri-state output

• User defined PLL loop response

• NRZ data compatible

• +3.3 and +5.0V supply voltage

The device is composed of phase-lock loop with

integrated VCXO for use in clock recovery, data re-

timing, frequency translation and clock smoothing

applications in telecom and datacom systems.

Crystal Frequencies Supported: 12.624~38.880MHz.

Ordering Information

Part Number

Package

PT7C4050xDE

Die form

PT7C4050xLE

Lead free 28-Pin TSSOP

Note: Pls see below specification of part no.

Applications

• Frequency translation

• Clock Smoothing, Clock Switching

• NRZ Clock Recovery

• Optical Switching/Routing, Base Station

PT0239L (06/07)

1

Ver: 0

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