Clock offers configurable LVCMOS/LVDS/LVPECL outputs

20th February 2015
Posted By : Nat Bowers
Clock offers configurable LVCMOS/LVDS/LVPECL outputs

Generating any frequency from 10 to 800MHz, the XR81411 quad output, high frequency LVCMOS/LVDS/LVPECL configurable clock synthesiser has been unveiled by Exar. Featuring four independent PLLs, utilising a highly flexible delta-sigma modulator and a wide ranging VCO, the device's clock outputs have very low phase noise jitter of less than 0.2ps while consuming extremely low power.

The XR81411 can be used with a standard crystal or an external system clock and each independent output can be configured to select from four different frequency multiplier settings to support a wide variety of applications. Each clock synthesiser includes an integer/fractional divider allowing output frequency resolution of less than 2Hz intervals.

“The XR81411 extends our universal clock family to multioutput solutions for various end applications. The ability to independently configure each output as LVCMOS, LVDS or LVPECL at any frequency makes this an ideal solution for switches/routers, AV timing and FPGA clocking,” commented James Lougheed, Vice President, Component Products, Exar.

The XR81411 is available in a space-saving 5x5mm LGA package which is RoHS compliant and green/halogen free. Prices start at $10.50 each in 1,000 unit quantities.

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