ICS84320-01K

www.DataSheet4U.com PRELIMINARY Integrated Circuit Systems, Inc. ICS84320-01K 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 ................ -123.6 dBc/Hz 100KHz ................ -128.1 dBc/Hz 3.3V supply voltage 0°C to 70°C ambient operating temperature GENERAL DESCRIPTION The ICS84320-01K is a general purpose, dual output Crystal-to-3.3V Differential LVPECL High FreHiPerClockS™ quency Synthesizer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS84320-01K has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 620MHz to 780MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interfaces to the configuration logic. The low pha...