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CY2XP311
312.5 MHz LVPECL Clock Generator
312.5 MHz LVPECL Clock Generator
Features
■ One LVPECL output pair ■ Output frequency: 312.5 MHz ■ External crystal frequency: 25 MHz ■ Low RMS phase jitter at 312.5 MHz, using 25-MHz crystal
(1.875 MHz to 20 MHz): 0.3 ps (typical) ■ Pb-free 8-pin TSSOP package ■ Supply voltage: 3.3 V or 2.5 V ■ Commercial and industrial temperature ranges
Functional Description
The CY2XP311 is a PLL (phase locked loop) based high performance clock generator. It is optimized to generate 10 GB Ethernet, SONET, and other high performance clock frequencies. It also produces an output frequency that is 12.5 times the crystal frequency. It uses Cypress’s low noise VCO technology to achieve 0.