Overview
Description
The RC22504A 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 (max). The RC22504A can act as a frequency synthesizer to locally generate the reference clock or as a DCO for frequency margining or OTN clock applications.
Features
- Jitter below 100fs RMS maximum (10Hz to 20MHz)
- PLL core consists of fractional-feedback Analog PLL (APLL)
- Operates from a 25MHz to 80MHz crystal or XO
- APLL frequency independent of input / crystal frequency
- Operates as a frequency synthesizer or Digitally Controlled Oscillator (DCO)
- DCO has tuning granularity of < 1ppb
- 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 via internal customer-definable One-Time Programmable (OTP) memory with up to four different configurations
- 4 × 4 mm 24-VFQFPN package
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
Evaluation
RC32504A-EVK
Active
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 RC22504A is functionally a subset of the RC32504A, so this board can be used to evaluate either, or both, of the devices. Refer to...
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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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Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Resources
Support Communities
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Programming the RC22504A via MCU
I am using an MCU to program the RC22504A via I2C interface. Is there any programming procedure, or sample code.
Jul 18, 2022 -
rc22504a在linux kernel中的驱动程序
请问贵司的rc22504a，是否有在linux kernel中使用的驱动程序？ 如果有，该驱动可以在哪里获取到？
Nov 23, 2024 -
Programming the RC22504A itself via OTP.
I would like to configure the RC22504A itself via OTP. Can you provide OTP programming procedures and support as you mention in the datasheet? [locked by: Sai (SWF) at 11:49 (GMT 0) on 13 Jun 2022]
Apr 27, 2022
Videos & Training
Demonstration of Renesas’ Lab on the Cloud virtual environment for FemtoClock®2 ultra-low phase noise synthesizer and jitter attenuator.
News & Blog Posts
Blog Post
Feb 1, 2022
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Blog Post
Apr 27, 2021
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Blog Post
Jun 15, 2019
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News
Dec 14, 2017
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News
Jul 18, 2016
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