Overview

The RC323xxA (RC32308A and RC32312A) is a high-performance, small form factor, low-power jitter attenuator with network synchronization capabilities, belonging to Renesas' high-performance FemtoClock™ 3 family. It supports SyncE for network-based synchronization and outputs ultra-low jitter clocks that can directly synchronize SerDes running at up to 112G pulse amplitude modulation (PAM), as well as CPRI/OBSAI, SONET/SDH, and ADC/DAC. This makes it an excellent choice for 100G/200G/400G/800G telecom switch line cards, fabric cards, wireline infrastructure, datacenter equipment, and instrumentation applications. It allows locking to external reference clocks or free-run crystals/oscillators and supports hitless reference switching between redundant timing sources. The device is versatile, supporting timing channels for SyncE clock generation, jitter attenuation, and with precise phase skew management for input-to-input, input-to-output, and output-to-output configurations.

RC32312 Block Diagram
RC32308 - Pinout
RC32312 - Pinout
RC32312 Block Diagram
RC32308 - Pinout
RC32312 - Pinout
  • Ultra-low jitter performance: Achieve exceptional precision with jitter performance as low as 70fs 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
  • SyncE support: Seamlessly integrate with SyncE technology for enhanced synchronization capabilities
  • 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 4 OTP configurations for startup
  • Clock input monitoring: Monitor clock inputs with precision, ensuring reliable and stable performance
  • Phase slope limit (ns/s): Support smooth phase adjust under DPLL control
  • Wide loop bandwidth: Enjoy the flexibility of adjusting the loop bandwidth from 0.5Hz to 18kHz, catering to various application needs
  • Combo mode support: Flexible frequency support

Applications

  • For 800Gbps SerDes Ethernet application
  • Jitter attenuation for 10/25/40/100/200/400/800 Gbps Ethernet PHYs or switches 
  • Synchronous Ethernet (SyncE) equipment
  • Datacenter Top of Rack (ToR) and leaf switch
  • Ethernet switches and routers
  • Medical image system
  • Test and measurement

Documentation

Design & Development

Software & Tools
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.
 Software Package Renesas
1 item

Boards & Kits

RC32308A Evaluation Board

RC32308A-EVK

Evaluation
Learn More

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...

Featured Documents:
RC22308A/RC32308A Evaluation Board Manual
RC32312A Evaluation Board

RC32312A-EVK

Evaluation
Learn More

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...

Featured Documents:
RC22312A-RC32312A Evaluation Board Manual

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

This device is factory-configurable. Try the Custom Part Configuration Utility.
    Processing table
    Diff. Outputs
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    Pkg. Dimensions (mm)
    Pkg. Type
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    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    RC32308A001GNE#BB0
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    Samples Available
    		 8 3 Crystal, LP-HCSL, LVCMOS, LVDS 7.0 x 7.0 x 0.9 VFQFPN Tray 3 15.33 Get Samples,
    RC32308A001GNE#KB0
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    		8 3 Crystal, LP-HCSL, LVCMOS, LVDS 7.0 x 7.0 x 0.9 VFQFPN Reel 3
    RC32312A002GN1#BB0
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    Samples Available
    		 12 3 Crystal, LP-HCSL, LVCMOS, LVDS 9.0 x 9.0 x 0.9 VFQFPN Tray 3 20.42 Get Samples,
    RC32312A001GN1#KB0
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    		12 3 Crystal, LP-HCSL, LVCMOS, LVDS 9.0 x 9.0 x 0.9 VFQFPN Reel 3 27.17
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    Ultra-Low Jitter FemtoClock 3 Family Overview

    Introducing the industry's lowest jitter 25fs RMS clock generator and jitter attenuator.

    Video List
    Ultra-Low Jitter FemtoClock 3 Family Overview
    FemtoClock 3 Lab Demonstration

    News & Blog Posts

    News Apr 18, 2024
    Blog Post Apr 27, 2021