ICS843021I-01

www.DataSheet4U.com FEMTOCLOCKS™ CRYSTAL-TO3.3V, 2.5V LVPECL CLOCK GENERATOR ICS843021I-01 Features One differential 3.3V or 2.5V LVPECL output Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal Output frequency range: 125MHz, using a 25MHz crystal VCO range: 490MHz – 640MHz RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz – 20MHz): 0.41ps (typical) Full 3.3V or 2.5V operating supply -40°C to 85°C ambient operating temperature Available in both standard (RoHS 5) and lead-free (RoHS 6) packages General Description The ICS843021I-01 is a Gigabit Ethernet Clock Generator and a member of the HiPerClocksTM HiPerClockS™ family of high performance devices from IDT. The ICS843021I-01 uses a 25MHz crystal to synthesize 125MHz. The ICS843021I-01 has excellent phase jitter performance, over the 1.875MHz – 20MHz integration range. The ICS843021I-01 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. ICS Block Diagram OE Pullup 25MHz Pin Assignment VCC XTAL_OUT XTAL_IN VEE 1 2 3 4 8 7 6 5 Q nQ VCC OE XTAL_IN OSC XTAL_OUT Phase Detector VCO ÷4 (fixed) Q nQ ÷20 (fixed) ICS843021I-01 8 Lead TSSOP 4.40mm x 3.0mm x 0.925mm package body G Package Top View IDT™ / ICS™ 3.3V , 2.5V LVPECL CLOCK GENERATOR 1 ICS843021AGI-01 REV. A DECEMBER 3, 2007 ICS843021I-01 FEMTOCLOCKS™CRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR www.DataSheet4U.com Table 1. Pin Descriptions Number 1, 8 2, 3 4 5...