ICS840-75

PRELIMINARY Integrated Circuit Systems, Inc. ICS840-75 75MHZ, LVCMOS/LVTTL OSCILLATOR REPLACEMENT GENERAL DESCRIPTION The ICS840-75 is a SAS/SATA Oscillator Replacement and a member of the HiPerClockS™ HiPerClocks TM family of high perfor mance devices from ICS. The ICS840-75 uses a 25MHz cr ystal to synthesize 75MHz. The ICS840-75 has excellent jitter performance. The ICS840-75 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. FEATURES One LVCMOS/LVTTL output, 15Ω output impedence Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal Output frequency: 75MHz Random jitter: 3ps (typical) Deterministic jitter: 0.14ps (typical) 3.3V operating supply 0°C to 70°C ambient operating temperature Available in both standard and lead-free RoHS-compliant packages IC S www.DataSheet4U.com BLOCK DIAGRAM OE Pullup PIN ASSIGNMENT VDD XTAL_OUT XTAL_IN OE 1 2 3 4 8 7 6 5 nc Q VDDO GND 25MHz XTAL_IN 75MHz Clock Synthesizer Q ICS840-75 8-Lead TSSOP 4.40mm x 3.0mm x 0.925mm package body G Package Top View XTAL_OUT ICS840-75 8-Lead SOIC 3.90mm x 4.92mm x 1.37mm body package M Package Top View The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice. 840AG-75 ww...