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844002 - Crystal-to-LVDS Frequency Synthesizer

General Description

The 844002 is a 2 output LVDS Synthesizer optimized to generate Fibre Channel reference clock frequencies.

Key Features

  • Two LVDS outputs.
  • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input.
  • Supports the following output frequencies: 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz.
  • VCO range: 560MHz - 680MHz.
  • RMS phase jitter @ 212.5MHz, using a 26.5625MHz crystal (637kHz - 10MHz): 0.65ps (typical).
  • Full 3.3V or 2.5V supply modes.
  • 0°C to 70°C ambient operating temperature.
  • Available in lead-free (RoHS 6) packag.

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Datasheet Details

Part number 844002
Manufacturer Integrated Device Technology
File Size 231.88 KB
Description Crystal-to-LVDS Frequency Synthesizer
Datasheet download datasheet 844002 Datasheet

Full PDF Text Transcription for 844002 (Reference)

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FemtoClock® Crystal-to-LVDS Frequency Synthesizer 844002 DATASHEET GENERAL DESCRIPTION The 844002 is a 2 output LVDS Synthesizer optimized to generate Fibre Channel refer...

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a 2 output LVDS Synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL[1:0]): 212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz. The 844002 uses IDT’s 3rd generation low phase noise VCO technology and can achieve <1ps typical rms phase jitter, easily meeting Fibre Channel jitter requirements.The 844002 is packaged in a small 20-pin TSSOP package. FEATURES • Two LVDS outputs • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input • Support