Overview

The RC32504A is a small, low-power timing component designed to be placed immediately adjacent to a PHY, switch, ASIC, or FPGA that requires several reference clocks with a jitter performance of less than 100fs. The RC32504A can act as a frequency synthesizer to locally generate the reference clock, a jitter attenuator to perform local clean-up and/or frequency translation of a centrally-supplied reference, a synchronous Ethernet equipment clock to perform passband filtering and clean-up of network-supplied references or as a DCO for frequency margining or OTN clock applications.

RC32504A - Block Diagram
RC32504A - Pin Assignment
RC32504A - Block Diagram
RC32504A - Pin Assignment
  • Jitter below 100fs RMS (10kHz to 20MHz)
  • Compliant with ITU-T G.8262 for synchronous Ethernet/OTN (EEC/OEC) and ITU-T G.8262.1 for enhanced synchronous Ethernet/OTN (eEEC/eOEC)
  • PLL core consists of fractional-feedback Analog PLL (APLL) which can optionally be steered by a Digital PLL (DPLL)
    • Operates from a 25MHz to 80MHz crystal or XO
    • APLL frequency independent of input/crystal frequency
    • Operates as a frequency synthesizer, jitter attenuator, synchronous equipment slave clock or Digitally Controlled Oscillator (DCO)
    • DPLL loop filter programmable from 0.1Hz to 12kHz
    • DCO has a tuning granularity of < 1ppb
  • Programmable input buffer supports HCSL, LVDS, or two LVCMOS with no external terminations needed
    • Input frequencies: 1MHz to 800MHz (250MHz for LVCMOS)
    • Reference monitor qualifies/disqualifies input clock
  • Programmable status output
  • 4 differential/8 LVCMOS outputs
    • Any frequency from 10MHz to 1GHz (180MHz for LVCMOS)
    • Programmable output buffer supports HCSL (DC-coupled), LVDS/LVPECL/CML (AC-coupled) or two LVCMOS
    • Differential output swing is selectable: 400mV to 800mV
    • Output clock phase individually adjustable in 100ps steps
    • Output Enable input with programmable effect
  • Supports up to 1MHz I²C or up to 20MHz SPI serial processor port
  • Can configure itself automatically after reset through internal customer-definable One-Time Programmable (OTP) memory with up to four different configurations
  • 4mm × 4mm 24-VFQFPN package

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.
Downloads
Renesas IC Toolbox (RICBox) Software Manual
 Software Package Renesas
1 item
RC32504A_RC22504A - Evaluation Board

RC32504A-EVK

Evaluation
Learn More

FemtoClock™ 2 Evaluation Kit

This is the evaluation kit for the RC32504A and RC22504A point-of-use jitter attenuator and clock generators.  The board comes populated with an RC32504A device. The...

Featured Documents:
RC32504A/RC22504A Evaluation Board User Manual
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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.
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    Price (USD) | 1ku
    Buy / Sample
    Part Number
    RC32504A000GNK#BB0
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    		VFQFPN 24 -40 to 85°C I Yes Tray 1 Get Samples,
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    		VFQFPN 24 -40 to 85°C I Yes Reel 1
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    Videos & Training

    Lab on the Cloud Demo for FemtoClock®2 Ultra-Low Phase Noise Synthesizer and Jitter Attenuator

    Demonstration of Renesas’ Lab on the Cloud virtual environment for FemtoClock®2 ultra-low phase noise synthesizer and jitter attenuator.

    Video List
    Lab on the Cloud Demo for FemtoClock®2 Ultra-Low Phase Noise Synthesizer and Jitter Attenuator
    FemtoClock2 Portfolio of Industry’s Smallest, Lowest Power 75fs Jitter Clocks

    News & Blog Posts

    Blog Post Apr 27, 2021
    Blog Post Jun 14, 2019
    News Dec 14, 2017
    News Jul 18, 2016