STABLE_3_MC_CRYSTAL_COLPITTS

Published:2009/7/19 21:32:00 Author:Jessie | From:SeekIC

Crystal operates at series resonance in feedback path between emitter of Q2 and tank tap. Q1 is shunt voltage regulator providing power-supply isolation. Two-stage feedback amplifier Q3-Q4 provides output impedance of about 150 ohms when R1 is adjusted for 0.5-V peak-to-peak output swing.-J. W. Hamblen and J. B. Oakes, Instrumentation and Telemetry of Transit Navigational Satellites, Electronics, 34:32, p 148-153.



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