PT7C4050 Datasheet, PDF (1/13 Pages) Pericom Semiconductor Corporation – PLL with Integrated VCXO

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