Phase Locked Loop

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LM565 LM565C Phase Locked Loop

February 1995

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 anda 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 specifiedfor operation over the b55 C to a 125 C military temperature range The LM565CN is specified for operation over the 0 C to a 70 C temperature range
Y Y

Y

Linear triangle wave with in phase zero crossings available TTL and DTL compatible phase detector input and square wave output Adjustable hold in range from g 1% to l g 60%

Applications
Y Y Y Y Y Y Y Y

Features
Y Y

Y Y Y

Y200 ppm C frequency stability of the VCO Power supply range of g 5 to g 12 volts with 100 ppm % typical 0 2% linearity of demodulated output

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

Connection Diagrams
Metal CanPackage Dual-In-Line Package

TL H 7853 – 2

TL H 7853 – 3

Order Number LM565H See NS Package Number H10C

Order Number LM565CN See NS Package Number N14A

C1995 National Semiconductor Corporation

TL H 7853

RRD-B30M115 Printed in U S A

Absolute Maximum Ratings
If Military Aerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications Supply Voltage Power Dissipation (Note 1) Differential Input Voltage
g 12V

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

b 55 C to a 125 C 0 C to a 70 C b 65 C to a 150 C

1400 mW g 1V

260 C

Electrical Characteristics AC Test Circuit
Parameter Power Supply Current Input Impedance(Pins 2 3) VCO Maximum Operating Frequency VCO Free-Running Frequency Operating Frequency Temperature Coefficient Frequency Drift with Supply Voltage Triangle Wave Output Voltage Triangle 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 (Pin7) Total Harmonic Distortion Output Impedance (Pin 7) DC Level (Pin 7) Output Offset Voltage lV7 b V6l Temperature Drift of lV7 b V6l AM Rejection Phase Detector Sensitivity KD fo e 10 kHz
b 4V k V2 V3 k 0V

TA e 25 C VCC e g 6V LM565 Min Typ 80 7 300 10 500 250 Max 12 5 Min LM565C Typ 80 5 500 Max 12 5 mA kX kHz Units

Conditions

Co e 2 7 pF Co e 1 5 nF Ro e 20 kX fo e 10 kHz

b 100

a 10

b 30

0

a 30

%

b 100

b 200

ppm C 15 3 % V Vp-p % Vp-p kX 60 % ns ns mA Hz V 450 15 mVp-p % kX 50 200 V mV mV C dB V radian

01 2 24 02 47 54 5 45 50 20 50 06 1 6600 250 300 02 35 4 25 45 30 500 30 40 68

10 3 2

02 24 05 47 54 5

55

40

50 20 50

06

1 6600

g 10% Frequency Deviation

400 0 75

200

300 02 35

g 10% Frequency Deviation

475 100

40

45 50 500 40 68

Note 1 The maximum junction temperature of the LM565 and LM565C is a 150 C For operation at elevated temperatures devices in the TO-5 package must be derated based on a thermal resistance of a 150 C W junction to ambient or a 45 C W junction to case Thermal resistance of the dual-in-line package is a 85 C W

2

Typical Performance Characteristics
Power...
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