CY22395FXCT

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY22395FXCT is a three-PLL, serial-programmable, flash-programmable clock generator manufactured by Infineon Technologies. It operates on a single 3.3 V supply and features four LVCMOS outputs and one CMOS output. The device supports input frequencies ranging from 1 MHz to 166 MHz via an external reference clock or 8 MHz to 30 MHz via an external crystal. Output frequencies reach up to 200 MHz at 3.3 V operation and up to 133 MHz at 2.5 V operation. It utilizes a 16-pin TSSOP package and includes advanced features such as digital VCXO capabilities and configurable output buffers.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated phase-locked loops with ultra-wide divide counters for flexible frequency synthesis
• Two-wire serial interface enabling in-system configurability and dynamic updates
• Integrated linear crystal load capacitors with programmable drive strength for improved performance
• Digital VCXO functionality allowing dynamic reference frequency adjustment via serial programming

Clock Generators, PLLs, Frequency Synthesizers Applications

• Systems requiring multiple independent clock frequencies derived from a single reference
• Applications needing field-programmable clock generation with low jitter outputs
• Designs utilizing I2C-compatible serial interfaces for configuration management

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm package type and temperature range. Ensure compatibility with the required voltage levels and output configurations before procurement. Confirm that the selected variant meets the necessary industrial or commercial temperature specifications for the intended application environment.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the CY22395 variant specifically when 3.3 V and 2.5 V output options are required, distinguishing it from the CY22394 which offers PECL outputs. Utilize CyClocksRT software to determine optimal PLL settings and verify junction temperature limitations. Ensure the design accounts for the maximum lumped load capacitance of 15 pF per output pin.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the CY22393/CY22394/CY22395 family of three-PLL clock generators originally developed by Cypress Semiconductor. Following Infineon's acquisition of Cypress, these parts continue to be supported within the Infineon product portfolio. The CY22395 serves as a specific member of this family designed for applications requiring mixed voltage level outputs.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The CY22392 is documented as a predecessor device within the same family. While performance characteristics are similar, the CY22395 provides advanced features such as serial programmability and digital VCXO capabilities not present in the CY22392. Substitution requires verification of output voltage levels and interface requirements.