PI49FCT807TSE

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The PI49FCT807TSE is a low-power ECL based differential clock-and-data recovery IC (CDR) with a variety of features and benefits. The PI49FCT807TSE provides low-jitter, low-power clock and data synchronization capabilities for applications such as network synchronizers or network gateways. This IC features a low power ECL implementation that offers superior jitter-free signal synchronization while consuming an exceptionally low active power.

The PI49FCT807TSE clock buffer and driver is primarily used to distribute timing signals. The IC operates in both rising-edge and falling-edge Clock Buffer modes, depending on the logic state of the Clock Buffer disable input. In rising-edge mode, the Clock Buffer output is enabled each time the input signal goes low, allowing for increased bandwidth in timing applications. In falling edge mode, the Clock Buffer output is enabled each time the input signal goes high, providing better amplitude control of the output signal. The PI49FCT807TSE also includes roll-off control options including Sharp or Soft modes.

The PI49FCT807TSE integrates a Clock Buffer core to provide source-synchronous, high-speed clock distribution. The Clock Buffer core dynamically adjusts the output duty cycle, suppressing any glitches or undershoots through Adjustable Slew Rate (ASR) control. The ASR provides further compatibility with existingynchronous timing requirements when used in conjunction with Lock Detection Logic.

The PI49FCT807TSE also includes a Clock Selection Combiner (CSC) which combines clock sources for systems that require redundancy. The CSC can be used to combine up to three clock sources in order to create a reduced jitter output clock. The CSC can be configured to provide either a performance-based or fault-tolerant clock source selection, depending on the desired system behavior.

The PI49FCT807TSE is a highperformance clock buffer and driver that provides source synchronous, adjustable slew rate control and clock selection combining. The IC is designed to reduce system cost, complexity, and power consumption while providing a robust, jitter-free clock distribution solution.

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