6.00 د.إ

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.
The LM565H is specified for operation over the ?55?C to
+125?C military temperature range. The LM565CN is specified for operation over the 0?C to +70?C temperature range.

n 200 ppm/?C frequency stability of the VCO
n Power supply range of ?5 to ?12 volts with 100 ppm/%

n 0.2% linearity of demodulated output
n Linear triangle wave with in phase zero crossings
n TTL and DTL compatible phase detector input and
square wave output
n Adjustable hold in range from ?1% to > ?60%
– Data and tape synchronization
– Modems
– FSK demodulation
– FM demodulation
– Frequency synthesizer
– Tone decoding
– Frequency multiplication and division
– SCA demodulators
– Telemetry receivers
– Signal regeneration
– Coherent demodulators

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