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Integrated Circuit Systems, Inc.
ICS84320-01
780MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
FEATURES
• Dual differential 3.3V LVPECL outputs • Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK • Output frequency range: 77.5MHz to 780MHz • Crystal input frequency range: 14MHz to 40MHz • VCO range: 620MHz to 780MHz • Parallel or serial interface for programming counter and output dividers • Duty cycle: 49% - 51% (N > 1) • RMS period jitter: 2.0ps (typical) • RMS phase jitter at 155.52MHz, using a 38.88MHz crystal (12KHz to 20MHz): 2.5ps (typical) Phase noise: 155.52MHz (typical), using a 38.88MHz crystal Offset Noise Power 100Hz .................. -90.5 dBc/Hz 1KHz ................ -114.2 dBc/Hz 10KHz ................ -123.