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CY25100: Field and Factory Programmable Spread Spectrum Clock Generator for EMI Reduction | サイプレス セミコンダクタ

CY25100: Field and Factory Programmable Spread Spectrum Clock Generator for EMI Reduction

最終更新日: 
2018 年 2 月 05 日
バージョン: 
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Field and Factory Programmable Spread Spectrum Clock Generator for EMI Reduction

特徴

  • Wide Operating Output (SSCLK) Frequency Range
    • 3 MHz to 200 MHz
  • Programmable Spread Spectrum with nominal 31.5 kHz Modulation Frequency
    • Center Spread: ±0.25% to ±2.5%
    • Down Spread: –0.5% to –5.0%
  • Input frequency range
    • External Crystal: 8 to 30 MHz Fundamental Crystals
    • External Reference: 8 to 166 MHz Clock
  • Integrated Phase-Locked Loop (PLL)
  • 詳しくは、PDF をご覧ください。

一般的な説明

The CY25100 is a Spread Spectrum Clock Generator (SSCG) IC used to reduce EMI found in today’s high speed digital electronic systems.

The device uses a Cypress proprietary PLL and Spread Spectrum Clock (SSC) technology to synthesize and modulate the frequency of the input clock. By frequency modulating the clock, the measured EMI at the fundamental and harmonic frequencies are greatly reduced.