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CY25811/12/14: Spread Spectrum Clock Generator | 赛普拉斯半导体

CY25811/12/14: Spread Spectrum Clock Generator

最近更新: 
2017 年 6 月 14 日
版本: 
*N

Spread Spectrum Clock Generator

特性

  • 4 to 32 MHz Input Frequency Range
  • 4 to 128 MHz Output Frequency Range
  • Accepts Clock, Crystal, and Resonator Inputs
  • 1x, 2x, and 4x frequency multiplication:
    • CY25811: 1x; CY25812: 2x; CY25814: 4x
  • Center and Down Spread Modulation
  • Low Power Dissipation:
    • 3.3V = 52 mW - typ at 6 MHz
    • 3.3V = 60 mW - typ at 12 MHz
    • 3.3V = 72 mW - typ at 24 MHz
  • 如需更多信息,请参阅 PDF 文档

功能描述

The CY25811/12/14 products are Spread Spectrum Clock Generator (SSCG) ICs used for the purpose of reducing electromagnetic interference (EMI) found in today’s high speed digital electronic systems.

The devices use a Cypress proprietary phase-locked loop (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 is greatly reduced.