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

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.