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XR81101

Exar
Part Number XR81101
Manufacturer Exar
Description LVCMOS Clock Synthesizer
Published Nov 23, 2016
Detailed Description XR81101 Universal Clock - High Frequency LVCMOS Clock Synthesizer General Description The XR81101-AA02 is a clock synth...
Datasheet PDF File XR81101 PDF File

XR81101
XR81101

Overview
XR81101 Universal Clock - High Frequency LVCMOS Clock Synthesizer General Description The XR81101-AA02 is a clock synthesizer operating at a 3.
3V/2.
5V supply with Integer divider, using a 25MHz parallel resonant crystal reference input provides a 125MHz LVCMOS output.
The device is optimized for use with a 25MHz crystal (or system clock) and generates a 125MHz output clock for GE applications.
The LVCMOS output has very low phase noise jitter of sub 150fs, while consuming extremely low power.
The application diagram below shows a typical synthesizer configuration with any standard crystal oscillating in fundamental mode.
Internal load capacitors are optionally available to minimize/eliminate external crystal loads.
A system clock can also be used to overdrive the oscillator for a synchronous timing system.
The typical phase noise plot below shows the jitter integrated over the 1.
875MHz to 20MHz range that is widely used in WAN systems.
These clock devices show a very good high frequen...


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