Overview

Description

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 jitter performance 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. 

Features

  • 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 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
  • 4 × 4 mm 24-VFQFPN package

Documentation

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PDF2.80 MB
Datasheet
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Application Note
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Application Note
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Guide
PDF1.53 MB
Manual - Software
PDF1.22 MB
Manual - Software
XLSX482 KB
Other
PDF906 KB
Overview
PDF1.83 MB
Overview
PDF15.98 MB
Report

Design & Development

Software & Tools

Software & Tools

Title Type Company
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

Software Downloads

Title Type Date
ZIP17.27 MB
Software & Tools - Software
ZIP183.57 MB
Software & Tools - Software

Boards & Kits

Boards & Kits

Models

Models

Title Type Date
ZIP28 KB
Model - IBIS

Support

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.