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ICS844101I-312

Part Number	ICS844101I-312
Manufacturer	ICS
Description	CRYSTAL-TO-LVDS 312.5MHZ FREQUENCY MARGINING SYNTHESIZER
Published	Oct 2, 2007
Detailed Description	www.DataSheet4U.com PRELIMINARY Integrated Circuit Systems, Inc. ICS844101I-312 FEMTOCLOCKS™ CRYSTAL-TO-LVDS 312.5MH...
Datasheet	ICS844101I-312 PDF File

Overview

www.
DataSheet4U.
com PRELIMINARY Integrated Circuit Systems, Inc.
ICS844101I-312 FEMTOCLOCKS™ CRYSTAL-TO-LVDS 312.
5MHZ FREQUENCY MARGINING SYNTHESIZER FEATURES • One 312.
5MHz nominal LVDS output • Selectable crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal or LVCMOS single-ended input • Output frequency can be varied in 2% steps ± from nominal • VCO range: 560MHz - 690MHz • RMS phase jitter @ 312.
5MHz, using a 25MHz crystal (1.
875MHz-20MHz): 0.
52ps (typical) • Output supply modes Core/Output 3.
3V/3.
3V 3.
3V/2.
5V • -40°C to 85°C ambient operating temperature • Available in both standard and lead-free RoHS-complaint packages GENERAL DESCRIPTION The ICS844101I-312 is a low phase-noise frequency margining synthesizer and is a memHiPerClockS™ ber of the HiPerClockS™ family of high performance clock solutions from ICS.
In the default mode, the device nominally generates a 312.
5MHz LVDS output clock signal from a 25MHz crystal input.
There is also a frequency margining mode available where the device can be programmed, using the serial interface, to vary the output frequency up or down from nominal in 2% steps.
The ICS844101I-312 is provided in a 16pin TSSOP.
IC S BLOCK DIAGRAM OE CLK Pullup Pulldown PIN ASSIGNMENT GND S_LOAD S_DATA Q S_CLOCK SEL nQ OE VDDA VDD 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 MODE VDDO Q nQ GND CLK XTAL_OUT XTAL_IN 1 25MHz ÷P OSC 0 XTAL_IN XTAL_OUT SEL Phase Detector VCO 560 - 690MHz ÷N Pulldown ÷M ICS844101I-312 16-Lead TSSOP 4.
4mm x 5.
0mm x 0.
92mm package body G Package Top View S_CLOCK S_DATA S_LOAD MODE Pulldown Pulldown Pulldown Pulldown Serial Control 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.
844101AGI-312 www.
icst.
com/products/hiperclocks.
ht...

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ICS844101I-312 CRYSTAL-TO-LVDS 312.5MHZ FREQUENCY MARGINING SYNTHESIZER - ICS

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