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概览

描述

The 9LPRS477 is a main clock synthesizer chip that provides all clocks required for ATI RD7xx-based systems using AMD processors. An SMBus interface allows full control of the device.

特性

  • Features/Benefits
    • CPU, ATIG, SB_SRC, and SRC outputs are independently programmable for frequency
    • Spread Spectrum for EMI reduction
    • Outputs may be disabled via SMBus
    • External crystal load capacitors for maximum frequency accuracy
    • Meets PCIEX Gen 2 specifications
    • Meets 30kHz to 33kHz SRC modulation rate specification for USB 3.0
  • Key Specifications
    • CPU outputs cycle-to-cycle jitter < 85ps
    • SRC outputs cycle-to-cycle jitter < 125ps
    • ATIG outputs cycle-to-cycle jitter < 125ps
    • ± 300ppm frequency accuracy on CPU, SRC, and ATIG clocks

产品对比

应用

文档

设计和开发

模型

ECAD 模块

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Diagram of ECAD Models

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