ICS840-125

Integrated Circuit Systems, Inc. ICS840-125 125MHZ, LVCMOS/LVTTL OSCILLATOR REPLACEMENT FEATURES One LVCMOS/LVTTL output, 15Ω output impedance Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal Output frequency: 125MHz Random jitter: 3.7ps (typical) Deterministic jitter: 0.1ps (typical) 3.3V operating supply 0°C to 70°C ambient operating temperature Available in both standard and lead-free RoHS-compliant packages GENERAL DESCRIPTION The ICS840-125 is a Gigabit Ethernet Oscillator Replacement and a member of the HiPerClockS™ HiPerClocks TM family of high perfor mance devices from ICS. The ICS840-125 uses a 25MHz crystal to synthesize 125MHz. The ICS840-125 has excellent jitter perfor mance. The ICS840-125 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space. 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 Clock Synthesizer 125MHz Q ICS840-125 8-Lead TSSOP 4.40mm x 3.0mm x 0.925mm package body G Package Top View XTAL_OUT ICS840-125 8-Lead SOIC 3.90mm x 4.92mm x 1.37mm body package M Package Top View 840AG-125 www.icst.com/products/hiperclocks.html 1 REV. A FEBRUARY 3, 2006 Integrated Circuit Systems, Inc. ICS840-125 125MHZ, LVCMOS/LVTTL OSCILLATOR REPLACEMENT Type Power Input Input Power Power Pullup Description Power supply pin. Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT ...