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