ICS43001I-22

www.DataSheet4U.com Integrated Circuit Systems, Inc. ICS843001I-22 FEMTOCLOCKS™CRYSTAL/LVCMOS-TO3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER FEATURES One 3.3V or 2.5V LVPECL output pair and one LVCMOS/LVTTL output Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input VCO range: 490MHz - 640MHz Output frequency range: 490MHz - 640MHz Supports the following applications: SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV RMS phase jitter @ 125MHz (1.875MHz - 20MHz): 0.5ps (typical) Full 3.3V or 2.5V supply modes -40°C to 85°C ambient operating temperature GENERAL DESCRIPTION The ICS843001I-22 is a a highly versatile, low phase noise LVPECL/LVCMOS Synthesizer HiPerClockS™ which can generate low jitter reference clocks for a variety of communications applications and is a member of the HiPerClocksTM family of high performance clock solutions from ICS. The dual crystal interface allows the synthesizer to support up to two communications standards in a given application (i.e. 1GB Ethernet with a 25MHz crystal and 1Gb Fibre Channel using a 25.5625MHz cr ystal). The r ms phase jitter performance is typically less than 1ps, thus making the device acceptable for use in demanding applications such as OC48 SONET and 10Gb Ethernet. The ICS843001I-22 is packaged in a small 24-pin TSSOP package. IC S CONTROL INPUT FUNCTION TABLE Control Input OE 0 1 FLOAT Q/nQ High-Z High-Z Active Outputs REF_OUT High-Z Active High-Z Available in both, Standard and ...