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LM565 - Phase Locked Loop

Description

The LM565 and LM565C are general purpose phase locked loops containing a stable, highly linear voltage controlled oscillator for low distortion FM demodulation, and a double balanced phase detector with good carrier suppression.

Features

  • n 200 ppm/˚C frequency stability of the VCO n Power supply range of ± 5 to ± 12 volts with 100 ppm/% typical Connection Diagrams Metal Can Package Dual-in-Line Package DS007853-2 DS007853-3 Order Number LM565H See NS Package Number H10C Order Number LM565CN See NS Package Number N14A © 1999 National Semiconductor Corporation DS007853 www. national. com Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Of.

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LM565/LM565C Phase Locked Loop May 1999 LM565/LM565C Phase Locked Loop General Description The LM565 and LM565C are general purpose phase locked loops containing a stable, highly linear voltage controlled oscillator for low distortion FM demodulation, and a double balanced phase detector with good carrier suppression. The VCO frequency is set with an external resistor and capacitor, and a tuning range of 10:1 can be obtained with the same capacitor. The characteristics of the closed loop system — bandwidth, response speed, capture and pull in range — may be adjusted over a wide range with an external resistor and capacitor. The loop may be broken between the VCO and the phase detector for insertion of a digital frequency divider to obtain frequency multiplication.
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