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CY23FS04-3: Failsafe™ 2.5 V/3.3 V Zero Delay Buffer | Cypress Semiconductor

CY23FS04-3: Failsafe™ 2.5 V/3.3 V Zero Delay Buffer

Last Updated: 
Aug 26, 2015
Version: 
*D

Failsafe™ 2.5 V/3.3 V Zero Delay Buffer

Features

  • Internal digital controlled crystal oscillator (DCXO) for continuous glitch-free operation
  • Zero input-output propagation delay
  • Low-jitter (35 ps max RMS) outputs
  • Low output-to-output skew (200 ps max)
  • 4.17 MHz to 166.7 MHz reference input
  • Supports industry standard input crystals
  • 166.7 MHz outputs
  • 5V-tolerant inputs
  • Phase-locked loop (PLL) bypass mode
  • Dual reference inputs
  • For more, see pdf

Functional Description

The CY23FS04-3 is a FailSafe™ zero delay buffer with two reference clock inputs and four phase-aligned outputs. The device provides an optimum solution for applications where continuous operation is required in the event of a primary clock failure.

The continuous, glitch-free operation is achieved by using a DCXO, which serves as a redundant clock source in the event of a reference clock failure by maintaining the last frequency and phase information of the reference clock.