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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 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
• Supports the following output frequencies: 212.5MHz, 187.5MHz, 159.
844002 Datasheet
