ICS843001-21

Integrated Circuit Systems, Inc. ICS843001-21 www.DataSheet4U.com FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER FEATURES One 3.3V LVPECL output pair and one LVCMOS output Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input VCO range: 560MHz - 700MHz Supports the following applications: SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV RMS phase jitter @ 622.08MHz (12kHz - 20MHz): 0.80ps (typical) Offset Noise Power 100Hz ............... -60.3 dBc/Hz 1kHz ............... -88.5 dBc/Hz 10kHz ............. -111.9 dBc/Hz 100kHz ............. -113.0 dBc/Hz Full 3.3V supply mode 0°C to 70°C ambient operating temperature Available in both standard and lead-free RoHS-compliant packages GENERAL DESCRIPTION The ICS843001-21 is a a highly versatile, low IC S phase noise LVPECL Synthesizer which can HiPerClockS™ generate low jitter reference clocks for a variety of communications applications and is a member of the HiPerClocks TM 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 ICS843001-21 is packaged in a small 24-pin TSSOP package. PIN ASSIGNMENT VC...