CY22381SXI-211

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY22381SXI-211 is a three-PLL general-purpose FLASH programmable clock generator manufactured by Infineon Technologies. It operates on a single 3.3V supply and features an 8-pin SOIC package. The device generates up to three unique output frequencies from an external reference source, supporting commercial temperature ranges of 0°C to +70°C. Key electrical parameters include a maximum output frequency of 200 MHz for commercial applications and a peak-to-peak period jitter of 200 ps. The input reference crystal frequency range is 8 MHz to 30 MHz, while driven external reference clocks are supported up to 166 MHz.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated phase-locked loops with ultra-wide divide counters for flexible frequency generation
• Non-volatile FLASH programmability allowing field customization and multiple programming cycles
• Configurable crystal drive strength and improved linear on-die load capacitors for enhanced accuracy
• General-purpose input pin supporting glitch-free frequency select, suspend, output enable, or shutdown modes

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-end multimedia systems requiring precise clock synchronization
• Industrial control applications needing low-jitter clock distribution
• Communication equipment utilizing A/D converters and signal processing
• Consumer electronics demanding EMI reduction through spread spectrum capabilities

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix configuration against official Infineon documentation to ensure correct factory-programmed settings. Confirm that the component meets the required industrial or commercial temperature specifications for the target application environment before integration into production designs.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when three independent clock outputs are required from a single package. Ensure the design supports the 8-pin SOIC footprint and accommodates the necessary external crystal or driven clock source. Verify compatibility with CyClocks RT software for initial configuration and parameter tuning.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY22381 family, which serves as a functional upgrade to the CY2081 series. It offers wider frequency ranges and improved performance characteristics. The 'SXI' designation indicates an industrial temperature grade variant within the standard SOIC packaging options provided by the manufacturer.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct substitutes include other CY22381 variants such as CY22381FXI for industrial temperature ranges or CY22381FXC for commercial grades. Cross-family replacements may require verification of pinout compatibility and PLL architecture differences.