Datasheet

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 atuning 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 isspecified 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 0.2% linearity of demodulated output n Linear triangle wave with in phase zero crossings available n TTL and DTL compatible phase detector input and square wave output n Adjustable hold in range from ± 1% to > ± 60%

Applications
n n n n nn n n n n n 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

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 PackageDual-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 Office/ Distributors foravailability and specifications. Supply Voltage Power Dissipation (Note 2) Differential Input Voltage

± 12V 1400 mW ± 1V

Operating Temperature Range LM565H LM565CN Storage Temperature Range Lead Temperature (Soldering, 10 sec.)

−55˚C to +125˚C 0˚C to +70˚C −65˚C to +150˚C 260˚C

Electrical Characteristics
AC Test Circuit, TA = 25˚C, VCC = ± 6V Parameter Power Supply Current Input Impedance(Pins 2, 3) VCO Maximum Operating Frequency VCO Free-Running Frequency −4V < V2, V3 < 0V Co = 2.7 pF Co = 1.5 nF Ro = 20 kΩ fo = 10 kHz 7 300 Conditions LM565 Min Typ 8.0 10 500 250 Max 12.5 Min LM565C Typ 8.0 5 500 Max 12.5 Units mA kΩ kHz

−10

0

+10

−30

0

+30

%

Operating Frequency Temperature Coefficient Frequency Drift with Supply Voltage Triangle Wave Output VoltageTriangle Wave Output Linearity Square Wave Output Level Output Impedance (Pin 4) Square Wave Duty Cycle Square Wave Rise Time Square Wave Fall Time Output Current Sink (Pin 4) VCO Sensitivity Demodulated Output Voltage (Pin 7) Total Harmonic Distortion Output Impedance (Pin 7) DC Level (Pin 7) Output Offset Voltage |V7 − V6| Temperature Drift of |V7 − V6| AM Rejection Phase Detector Sensitivity KD 304.25 fo = 10 kHz 0.6 45 4.7 2

−100 0.1 2.4 0.2 5.4 5 50 20 50 1 6600 250 300 0.2 3.5 4.5 30 500 40 0.68 4.75 100 4.0 400 0.75 200 0.6 55 40 4.7 1.0 3 2

−200 0.2 2.4 0.5 5.4 5 50 20 50 1 6600 300 0.2 3.5 4.5 50 500 40 0.68 5.0 200 450 1.5 60 1.5 3

ppm/˚C %/V Vp-p % Vp-p kΩ % ns ns mA Hz/V mVp-p % kΩ V mV µV/˚C dB V/radian

± 10% Frequency Deviation ± 10% Frequency Deviation

Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the...