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Integrated Circuit Systems, Inc. Product Brief M624 VOLTAGE CONTROLLED SAW OSCILLATOR PIN ASSIGNMENT (0.6 x 0.8 inch SMT) GND GND GND 7 GENERAL DESCRIPTION The M624 is a VCSO (Voltage Controlled SAW Oscillator) frequency source specifically designed for high-speed SONET/SDH applications for rates up to OC-768. Its integrated SAW (surface acoustic wave) delay line provides excellent phase noise performance and spectral purity, while requiring a low supply voltage (+3.3V). An extremely linear tuning range makes the M624 especially suited for phase-locked loop applications, which are extensively used in timing circuits and clock and data recovery in fiber-linked data systems. The SMT VCSO's small size and minimal power requirements make it ideal for the miniturization applications that are emerging, without sacrificing performance. GND 10 9 8 6 GND VIN 11 M624 (Top View) 5 GND VCC 12 1 GND 2 GND 3 GND 4 RF_OUT FEATURES * VCSO center frequency from 500 to 625MHz * Low phase noise -100dBc/Hz @ 1kHz offset * Superior SAW jitter performance and aging; * * * * jitter 0.015ps rms typical (12kHz-20MHz) Excellent frequency stability and tuning linearity Low power consumption (300 mW) Single 3.3V power supply Small 0.6 x 0.8 inch SMT (surface mount) package BLOCK DIAGRAM M624 SAW Delay Line Ceramic Filter Phase Shifter RF_OUT VCSO VIN M624 PB Rev 2.2 M624 Voltage Controlled SAW Oscillator Revised 16Apr2004 Integrated Circuit Systems, Inc. Communications Modules w w w. i c s t . c o m tel (508) 852-5400 |
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