ICS84314AYLFT

Integrated Circuit Systems, Inc. ICS84314 350MHZ, CRYSTAL-TO-3.3V/2.5V LVPECL FREQUENCY SYNTHESIZER W/FANOUT BUFFER FEATURES Fully integrated PLL 4 differential 3.3V or 2.5V LVPECL outputs Selectable crystal oscillator interface or LVCMOS TEST_CLK input Output frequency range: 62.5MHz to 350MHz VCO range: 250MHz to 700MHz Parallel interface for programming counter and output dividers during power-up Serial 3 wire interface Cycle-to-cycle jitter: 23ps (typical) Output skew: 16ps (typical) Output duty cycle: 49% < odc < 51%, fout ≤ 125MHz Full 3.3V or mixed 3.3V core, 2.5V operating supply 0°C to 85°C ambient operating temperature Lead-Free package available GENERAL DESCRIPTION The ICS84314 is a general purpose quad output frequency synthesizer and a member of the HiPerClockS™ HiPerClockS™ family of High Performance Clock Solutions from ICS. When the device uses parallel loading, the M bits are programmable and the output divider is hard-wired for divide by 2 thus providing a frequency range of 125MHz to 350MHz. In serial programming mode, the M bits are programmable and the output divider can be set for either divide by 2 or divide by 4, providing a frequency range of 62.5MHz to 350MHz. The low cyclecycle jitter and broad frequency range of the ICS84314 make it an ideal clock generator for a variety of demanding applications which require high performance. ICS BLOCK DIAGRAM PIN ASSIGNMENT VCO_SEL nP_LOAD XTAL2 XTAL1 M3 M2 M1 M0 VCO_SEL 32 31 30...