CY25100SXC-070T

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY25100SXC-070T is a field-programmable spread spectrum clock generator designed for EMI reduction. It operates on a single 3.3 V supply and accepts input frequencies from 8 to 166 MHz via crystal or reference clock. The device synthesizes an output frequency range of 3 to 200 MHz with a fixed modulation frequency of 31.5 kHz. Spread percentage options include center spread (±0.25% to ±2.5%) and down spread (-0.5% to -5.0%). It features integrated programmable load capacitors, low cycle-to-cycle jitter, and configurable power-down or output enable functions.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Field-programmable configuration memory allows reprogramming up to 100 times using the CY3672 programmer.
• Integrated phase-locked loop synthesizes and modulates input clock frequency to reduce radiated electromagnetic interference.
• Programmable internal crystal load capacitor tuning array eliminates the need for external load capacitors.

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed digital electronic systems requiring EMI compliance
• Computer motherboards and peripheral cards
• Telecommunications equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory programming parameters associated with the suffix '070' against official Infineon documentation before procurement. Confirm that the tape and reel packaging aligns with automated assembly requirements. Ensure the selected temperature range meets the operational environment specifications.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when field-reprogrammability is required for design flexibility. Verify that the input source matches either the crystal or reference clock input specifications. Ensure the target output frequency and spread percentage fall within the supported ranges defined in the datasheet electrical characteristics.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CY25100 family of spread spectrum clock generators originally developed by Cypress Semiconductor, now managed by Infineon Technologies. The 'F' designation indicates field-programmable capability, while 'T' denotes tape and reel packaging. The device utilizes proprietary PLL technology for frequency synthesis.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements must support field programmability and identical package types. Verify compatibility with existing programming tools such as the CY3672 programmer. Cross-reference pinouts and electrical characteristics to ensure functional equivalence without circuit redesign.

Clock Generators, PLLs, Frequency Synthesizers FAQ

How many times can the CY25100SXC-070T be reprogrammed?

The device is based on Flash technology and can be reprogrammed up to 100 times.

What is the modulation frequency for the spread spectrum function?

The modulation frequency is fixed at 31.5 kHz for all SSCLK frequencies ranging from 3 to 200 MHz.

Can the REFCLK output be disabled?

Yes, the reference clock output can be programmed to be enabled or disabled (High Z, clock off) if not required.