ICS840002I

Integrated Circuit Systems, Inc. ICS840002I FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/LVTTL FREQUENCY SYNTHESIZER FEATURES Two LVCMOS outputs @ 3.3V, 17Ω typical output impedance Selectable crystal oscillator interface or LVCMOS single-ended input Output frequency range: 46.66MHz - 233.33MHz VCO range: 560MHz - 700MHz Supports the following output frequencies: 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz and 53.125MHz RMS phase jitter @ 212.5MHz (637KHz - 10MHz): 0.83ps (typical) Typical phase noise at 212.5MHz: Offset Noise Power 100Hz ............... -91.3 dBc/Hz 1KHz .............. -114.3 dBc/Hz 10KHz .............. -120.7 dBc/Hz 100KHz .............. -120.2 dBc/Hz Power supply modes: Core/Output 3.3V/3.3V 3.3V/2.5V 2.5V/2.5V -40°C to 85°C ambient operating temperature Lead-Free package RoHS compliant GENERAL DESCRIPTION The ICS840002I is a 2 output LVCMOS/LVTTL Synthesizer optimized to generate Fibre Channel HiPerClockS™ reference clock frequencies and is a member of the HiPerClocksTM family of high performance clock solutions from ICS. Using a 26.5625MHz 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL1:0): 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz, and 53.125MHz. The ICS840002I uses ICS’ 3rd generation low phase www.DataSheet4U.com noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The ICS840002I is packaged in a 16-pin ...