Renesas Electronics VersaClock 3S Clock Generators

Renesas Electronics VersaClock 3S Programmable Clock Generators are designed for low-power, consumer, and high-performance PCI Express applications. The generators feature a three PLL architecture design with each PLL individually programmable. This allows for up to three (5P35021) or six (5P35023) unique frequency outputs. The generators feature Proactive Power Saving (PPS), Performance-Power Balancing (PPB), Overshot Reduction Technology (ORT), and Extreme Low Power DCO.


  • Two Differential Outputs with SMA connector
  • One LVCMOS Output with SMA connector
  • USB interface connects to PC system for configuration
  • When the board is connected to a PC running Timing Commander Software through USB, the device can be configured and programmed to generate frequencies with best-in-class performance
  • Configurable OE pin function as OE, PD#, PPS or DFC control function
  • Configurable PLL bandwidth/minimizes jitter peaking
  • PPS: Proactive Power Saving features save power during the end device power down mode
  • PPB: Performance- Power Balancing feature allows minimum power consumption based on required performance
  • Spread Spectrum clock support to lower system EMI
  • Store user configuration into OTP memory
  • I2C interface
  • DFC: Dynamic Frequency Control feature allows user to dynamically switch between and up to 4 difference frequencies smoothly


  • PCIe Gen1/2/3 clock generator
  • Consumer application crystal replacements
  • Smart devices and handhelds
  • Computing and consumer applications


5P35021 Block Diagram

Block Diagram - Renesas Electronics VersaClock 3S Clock Generators

5P35023 Block Diagram

Block Diagram - Renesas Electronics VersaClock 3S Clock Generators
Published: 2016-06-14 | Updated: 2023-07-11