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Si544 - Crystal Oscillator

General Description

Selectable via ordering option OE = Output enable; FS = Frequency Select; NC = No connect GND = Ground CLK+ = Clock output CLK- = Complementary clock output.

Not used for CMOS.

Key Features

  • I2C programmable to any frequency from 0.2 to 1500 MHz with < 1 ppb resolution.
  • Very low jitter: 150 fs Typ RMS (12 kHz.
  • 20 MHz).
  • Configure up to 4 pin-selectable startup frequencies.
  • I2C interface supports 100 kbps, 400 kbps, and 1 Mbps (Fast Mode Plus).
  • Excellent PSNR and supply noise immunity:.
  • 80 dBc Typ.
  • 3.3 V, 2.5 V and 1.8 V VDD supply operation from the same part number.
  • LVPECL, LVDS, CML, HCSL, CMOS, and Du.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Ultra Series™ Crystal Oscillator Si544 Data Sheet Ultra Low Jitter I2C Programmable XO (150 fs), 0.2 to 1500 MHz The Si544 Ultra Series™ oscillator utilizes Skyworks Solutions’ advanced 4th generation DSPLL® technology to provide an ultra-low jitter, low phase noise clock at any output frequency. The device is user-programmed via simple I2C commands to provide any frequency from 0.2 to 1500 MHz with <1 ppb resolution and maintains exceptionally low jitter for both integer and fractional frequencies across its operating range. The Si544 offers excellent reliability and frequency stability as well as guaranteed aging performance.