Overview
Description
The RC223xxA (RC22308A and RC22312A) is a high-performance, small form factor, low-power clock generator, belonging to Renesas' high-performance FemtoClock™ 3 family. It supports ultra-low jitter clocks for 100G/200G/400G/800G SerDes data center equipment reference clock applications. It also comes with three Fractional Output Dividers (FOD), and it can support up to four frequency domains.
Features
- Ultra-low jitter performance: Achieve exceptional precision with jitter performance as low as 50fs at 312.5MHz within a wide 12kHz to 20MHz integration range in jitter attenuator mode
- Versatile power supply options: Operate the device with ease using a single 1.8V power supply while ensuring compatibility with a 3.3V level interface at SCL/SDA pin if the VDDD33_SERIAL is 3.3V
- DCO mode support: Leverage the benefits of the DCO mode for added flexibility and efficiency
- Configurable startup options: Load configurations at startup effortlessly with the support of an external EEPROM, streamlining your setup process
- Flexible communication interfaces: Choose between SPI or I2C communication protocols for seamless device integration
- Multiple OTP configurations: Benefit from up to four OTP configurations for startup
Comparison
Applications
Design & Development
Software & Tools
Software & Tools
Software title
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Software type
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Company
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Renesas IC Toolbox (RICBox) The Renesas IC Toolbox (RICBox) software platform enables customers to configure Renesas devices on evaluation kits when attached to the computer running the software.
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Software Package | Renesas |
1 item
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Boards & Kits
FemtoClock™ 3 8-Output Jitter Attenuator and Multi-Frequency Clock Synthesizer Evaluation Kit
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...
FemtoClock™ 3 12-Output Jitter Attenuator and Multi-Frequency Clock Synthesizer Evaluation Kit
This RC32312A-EVK evaluation kit is used to evaluate the RC32312A FemtoClock™ 3 jitter attenuator and clock generator. The RC32312A 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...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Product Options
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Videos & Training
Introducing the industry's lowest jitter 25fs RMS clock generator and jitter attenuator.