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Renesas Electronics Corporation

Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to [email protected]. Full transition to SiTime is expected by late 2026.

Overview

This is the evaluation kit for the RC32308A FemtoClock™ 3 jitter attenuator and clock generator. The RC32308A provides one independent timing channel that can be configured as digital PLLs (DPLLs) or as digitally controlled oscillators (DCOs) and with up to four independent frequency domains that are each either locked to the external reference input or locked to a free-run crystal or oscillator. The DPLL channels meet synchronous Ethernet clock requirements and they can be used for jitter attenuation and frequency translation. The DCOs can be programmed to synthesize the desired frequency and can be steered by external software with a resolution of 1.11e-13. The DPLLs can lock to virtually any frequency from 4kHz to 1GHz and the DPLLs and DCOs can generate virtually any frequency from 4kHz to 1GHz with typical jitter below 65fs RMS from 12kHz to 20MHz in jitter attenuator mode and below 55fs RMS from 12kHz to 20MHz in clock generator mode.

Features

  • Three differential clock inputs
  • Eight differential clock outputs
  • Onboard EEPROM stores startup-configuration data
  • XIN terminal can use a laboratory signal generator or OCXO/TCXO/XO components and board
  • Laboratory power supply connectors
  • USB-C power supply
  • Serial port for configuration and register readout

Products in the Design

Sample & Buy

RC32308A Evaluation Board

RC32308A-EVK

Active
Pb (Lead) Free:No
ECCN (US):EAR99
HTS (US):8473.30.1180

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Support Communities

  1. 关于RC32308A-EVK,有没有一些适用于更高版本RICBox的使用教程和插件

    问题1:手册上在创建工程时需要加载FemtoClock3,可是下载对应8.4.0版本这个是没有这个插件的,那应该去下载那个版本呢 问 ...

    Jan 5, 2026
  2. RC32308A-EVK的使用问题

    1.RC32308A-EVK上丝印是2023年10月的,实际只找到2023年7月10号的手册 2.手册里面有提到U3和U27,但是实际只找到U27,没找到U3 3 ...

    Jan 14, 2026
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