501FAK-ADAF

Overview

The Si501FAK-ADAF is a high-performance, low-jitter clock generator from Silicon Labs' Si501 family. It features an integrated voltage-controlled crystal oscillator (VCXO) with a center frequency of 245.76 MHz and a programmable output frequency range. The device supports multiple differential and single-ended output formats, including LVPECL, HCSL, and LVCMOS, to accommodate diverse system requirements. It operates within a supply voltage range of 1.8V to 3.3V and utilizes an I2C interface for configuration. The component is designed for applications requiring precise clock synchronization and low phase noise.

Feature Summary

• Integrated VCXO functionality allows for precise frequency tuning and synchronization in data communication systems.
• Supports multiple output formats including LVPECL, HCSL, and LVCMOS for flexible system integration.
• Low jitter performance ensures signal integrity in high-speed serial links.
• I2C configurable interface enables easy programming and dynamic adjustment of clock parameters.

Applications

• High-speed serial communication interfaces
• Data converter clocking
• FPGA and ASIC clock generation
• Telecommunications equipment

Procurement Notes

Verify the exact ordering suffix to ensure correct package type, temperature range, and tape-and-reel specifications. Confirm that the required output format and frequency settings match the design requirements before procurement. Check for any specific calibration or initialization sequences required by the host controller. Ensure compatibility with the system's I2C bus voltage levels.

Selection Notes

Select this component when a low-jitter clock source with VCXO capability is needed for synchronization. Consider the available output formats and the required operating temperature range. Evaluate the power consumption against system constraints. Verify that the I2C address and register map are compatible with the existing firmware or control logic.

Part Context

The Si501FAK-ADAF belongs to Silicon Labs' Si501 series of clock generators. This family is known for its flexibility and low phase noise, making it suitable for demanding applications. The part number indicates specific package and configuration options within the broader product line.

Replacement Considerations

Direct replacements may include other parts from the Si501 family with similar pinouts and electrical characteristics. Verify functional equivalence regarding output formats, jitter performance, and VCXO tuning range. Cross-reference with manufacturer substitution guides for confirmed alternatives.