Now at Mouser: Renesas’ High-Performance FemtoClock2 Synthesizers for Programmable Fiber Optic Modules
September 30, 2021 – Mouser Electronics, Inc., the industry’s leading New Product Introduction (NPI) distributor with the widest selection of semiconductors and electronic components™, is now stocking the FemtoClock2 high-performance clock-frequency synthesizers from Renesas Electronics. Featuring jitter as low as 64fs RMS maximum, the FemtoClock2 synthesizers are designed to be placed adjacent to a switch, ASIC, FPGA, or PHY that requires several reference clocks with less than 100fs maximum jitter performance. Additionally, the high-performance devices can be used as an adjustable OTN clock reference for OTU3/OTU4 mappers, as well as a reference clock for programmable fiber optic modules.
The Renesas FemtoClock2 synthesizers, available from Mouser Electronics, consist of the RC22504A synthesizer and RC32504A jitter attenuator and synthesizer. The devices can also act as a DCO for frequency margining or OTN clock applications. The devices’ PLL core consists of fractional-feedback analog PLL (optionally steered by a digital PLL in the RC32504A device) and operates from a crystal with frequencies between 25 MHz to 80 MHz.
The FemtoClock2 synthesizers feature four differential or eight LVCMOS outputs, supporting any frequency from 10 MHz to 1 GHz (180 MHz for LVCMOS). The versatile synthesizers can configure themselves automatically after reset, using an internal customer-definable one-time programmable memory with up to four different configurations.
The FemtoClock2 synthesizers are supported by the RC22504A evaluation kit. Engineers can develop configurations using Renesas RICBox software and then upload to the evaluation board using a USB connection. The evaluation kit features Renesas low-noise power supply regulators and a Renesas low-noise fan-out buffer.
To learn more about the Renesas FemtoClock2 synthesizers, visit https://www.mouser.com/new/renesas/renesas-rc22504a-synthesizer/.
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