LM1391N

LM1391 Phase-Locked Loop February 1995 LM1391 Phase-Locked Loop General Description The LM1391 integrated circuit has been designed primarily for use in the horizontal section of TV receivers but may find use in other low frequency signal processing applications It includes a stable VCO linear pulse phase detector and variable duty cycle output driver Y Y Y Y Y Features Y Y Y Y Y Internal active regulator for improved supply rejection Uncommitted collector of output transistor Output transistor with low saturation and high voltage swing APC of the oscillator with a synchronizing signal DC controlled output duty cycle g 300 Hz typical pull-in Linear balanced phase detector Low thermal frequency drift Small static phase error Adjustable DC loop gain Schematic Diagram TL H 7889 – 1 ( ) Pin 4 Base of Q16 (LM1391) for use with ( a ) flyback pulse C1995 National Semiconductor Corporation TL H 7889 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Current Output Voltage Output Current Sync Input Voltage (Pin 3) 40 mADC 40 VDC 30 mADC 5 0 Vp-p Flyback Input Voltage (Pin 4) Power Dissipation (Package Limitation) Plastic Package (Note 1) Operating Temperature Range (Ambient) Storage Temperature Range Lead Temperature (Soldering 10 sec ) 5 0 Vp-p 1000 mW 0 C to a 70 C b 65 C to a 150 C 260 C Electrical Characteristics TA e 25 C (see test circuit Parameter Regulated Voltage (Pin 6) Supply Current (Pin 6) Collector-Emitter Saturation Voltage of Output Transistor (Pin 1) Pin 4 Voltage Oscillator Pull-in Range Oscillator Hold-in Range Static Phase Error Free-running Frequency Supply Dependance Phase Detector Leakage (Pin 5) Sync Input Voltage (Pin 3) Sawtooth Input Voltage (Pin 4) Maximum Oscillator Frequency Adjust RH Adjust RH Df e 300 Hz S1 in position 2 All switches in position 2 IC1 e 20 mA Conditions I6 e 22 mADC all switches in position 1) Min 80 Typ 86 20 0 30 20 g 300 g 900 Max 92 Units VDC mADC 0 40 VDC VDC Hz Hz ms Hz VDC 05 g3 0 g1 0 mA Vp-p Vp-p kHz 20 10 500 50 30 Note 1 For operation in ambient temperatures above 25 C the device must be derated based on a 150 C maximum junction temperature and a thermal resistance of 120 C W junction to ambient Typical Performance Characteristics Frequency Drift vs Warm-Up Time Frequency vs Temperature Output Duty Cycle vs VM Voltage TL H 7889 – 3 2 Application Information The following equations may be considered when using the LM1391 in a particular application VCC b 8 6 R201 e R301 e X 0 02 1 Hz 1 5k s RO k 51k 0 6 ROCO R204 j 10 RO fO j C203 e C204 j 1 F 600 fO(Hz) Damping Factor Kj DC Loop Gain mb j 3 2 c 10b5 ROfO Hz rad RX2 CC mb 1 a 2q RY Hz fnn j 4RXCC Noise Bandwidth q RX2 2 RY CC mb Test Circuit TL H 7889 – 4 Connection Diagram Dual-In-Line Package TL H 7889 – 2 Top View Order Number LM1391N See NS Package Number N08E 3 Typical Applications TL H 7889 – 5 FIGURE 1 TV Horizontal Processor TL H 7889 – 6 FIGURE 2 General Purpose Phase-Lock Loop (See Applications Information) 4 Typical Applications (Continued) TL H 7889 – 7 FIGURE 3 Variable Duty Cycle Oscillator (See Applications Information) 5 LM1391 Phase-Locked Loop Physical Dimensions inches (millimeters) Molded Dual-In-Line Package (N) Order Number LM1391N NS Package Number N08E LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user National Semiconductor Corporation 1111 West Bardin Road Arlington TX 76017 Tel 1(800) 272-9959 Fax 1(800) 737-7018 2 A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness National Semiconductor Europe Fax (a49) 0-180-530 85 86 Email cnjwge tevm2 nsc com Deutsch Tel (a49) 0-180-530 85 85 English Tel (a49) 0-180-532 78 32 Fran ais Tel (a49) 0-180-532 93 58 Italiano Tel (a49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel (852) 2737-1600 Fax (852) 2736-9960 National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications