概览

优势和特点

  • No External Components to Set Frequency
  • Frequency Error ±0.5% Typical
  • Fast Start-Up Time: 100µs Typical
  • ±20ppm/°C Temperature Stability
  • Includes Output Enable
  • Includes Divide by 1, 2 or 4
  • Rise Time: 0.5ns, CL = 5pF
    • Timing Jitter: <0.8% Typical
    • Duty Cycle: 50% ±2.5%
    • IS = 8mA Typical (fOSC = 100MHz, CL = 5pF)
    • CMOS Output Drives 600Ω Load
    • Single Supply 2.7V to 5.5V
    • Low Profile (1mm) ThinSOT Package

    产品详情

    The LTC6905-X series of parts are precision, fixed frequency, silicon oscillators designed to minimize board space while maximizing accuracy and ease of use.

    Programmed at the factory to a fixed frequency, the LTC6905-X series of parts need no external trim components. An internal three-state divider allows for division of the master clock by 1, 2 or 4, providing 3 frequencies (for each device).

    The LTC6905-X series operate with a single 2.7V to 5.5V power supply and provide a rail-to-rail, 50% duty cycle, square wave output. The OE pin will disable the output when brought low and synchronously enable the output when brought high, avoiding pulse slivers.

    The four products of the LTC6905-X family are:

    • LTC6905-133: fOSC = 133MHz, 66.7MHz, 33.3MHz
    • LTC6905-100: fOSC = 100MHz, 50MHz, 25MHz
    • LTC6905-96: fOSC = 96MHz, 48MHz, 24MHz
    • LTC6905-80: fOSC = 80MHz, 40MHz, 20MHz

     

    The LTC6905-X series of parts are designed with a factory trim option to modify the divider ratios from 1, 2, 4 to 8, 16, 32. A second trim option allows for additional master clock frequencies. For the alternate divider ratios and unlisted frequencies, contact LTC marketing.

    Protected by U.S. Patents, including 6614313, 6342817.

    Applications

    • Data Clocks for High Reliability Applications
    • High Vibration, High Acceleration Environments
    • Replacement for Fixed Crystal and Ceramic Oscillators

    产品生命周期 icon-recommended 推荐新设计使用

    本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。

    评估套件 (4)

    工具及仿真模型

    LTspice

    LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。

    LTspice

    LTspice中提供以下器件型号:

    LTC6905
    LTC6905-100
    LTC6905-133
    LTC6905-80
    LTC6905-96

    设计工具

    OscCalc硅振荡器选型和频率合成工具

    OscCalc是一款简单、快速的工具,可根据具体应用帮助您找到合适的硅振荡器。

    设计资源

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