RC31008A001GND#BB0

Clock Generators, PLLs, Frequency Synthesizers Overview

The RC31008A001GND#BB0 is a clock generator from the Renesas FemtoClock 3 series, designed for PCIe Gen compliance in jitter attenuation mode. It features eight differential outputs and supports low-power operation with typical consumption under 1W. The device achieves RMS phase jitter below 150fs in integer mode (12kHz-20MHz) and below 200fs in fractional mode. It operates within a -40°C to 85°C temperature range and accepts crystal or external clock inputs via CLKIN0/nCLKIN1 and CLKIN1/nCLKIN1 pins.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Jitter Attenuation Mode: Supports PCIe Gen compliance through dedicated JA operation capabilities distinct from the RC210xx series.
• Low Phase Jitter: Delivers RMS jitter performance of less than 150fs (integer mode) and 200fs (fractional mode) across the 12kHz-20MHz bandwidth.
• Flexible Input Interface: Accepts reference signals via onboard crystal oscillator or external differential/single-ended clocks through SMA connectors.
• Programmable Configuration: Allows frequency configuration via USB connection using RICBox software, supporting I2C and SPI communication protocols.

Clock Generators, PLLs, Frequency Synthesizers Applications

• PCIe Gen compliant clock generation systems
• High-speed data transmission reference clocks
• Server and storage infrastructure timing solutions

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the suffix #BB0 against official Renesas documentation to confirm specific packaging or tape-and-reel specifications. Ensure compatibility with the RICBox software version required for configuring the jitter attenuation parameters. Confirm voltage settings match the target board requirements (1.8V, 2.5V, or 3.3V).

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model over the RC21008A if jitter attenuation functionality is required, as the RC21008A supports only synthesizer mode. Choose between RC21008A and RC31008A based on the need for input clock filtering versus pure frequency multiplication. Verify that the eight-output configuration meets the system's clock distribution needs without requiring additional buffering.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the FemtoClock 3 family, which includes the RC210xx (synthesizer only) and RC310xx (jitter attenuator) series. The RC31008A variant specifically provides eight output channels, whereas the RC31012A offers twelve. It is engineered for ultra-low noise applications in high-speed serial interfaces.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

RC21008A001GND#BB0 serves as a functional substitute if jitter attenuation is not required. For twelve-channel requirements, consider the RC31012A001GND#BB0. Cross-compatibility exists within the FemtoClock 3 series regarding pinouts and software tools, though output counts differ.