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| NTE1784 Integrated Circuit TV Horizontal Processor Description: The NTE1784 is an integrated circuit in a 16-Lead DIP type package designed for use as a horizontal processor circuit for B/W and color television receivers. Features: D Noise Gated Horizontal Sync Separator D Noise Gated Vertical Sync Separator D Horizonyal Oscillator with Frequency Range Limiter D Phase Comparator between Sync Pulses and Oscillator Pulses (PLL) D Phase Comparator between Flyback Pulses and Oscillator Pulses (PLL) D Loop Gain and Time Constant Switching (VCR) D Composite Blanking and Key Pulse Generator D Protection Circuits D Output Stages with High Current Capability Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage (Pin1), VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Circuit Voltage, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Circuit Voltage, V4, V11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS Circuit Voltage, V8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS to -6V Circuit Voltage, V9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6V to -6V Peak Circuit Current, I2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A Peak Circuit Current, I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA Circuit Current, I6, I10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA Circuit Current, I7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Total Power Dissipation (TA +70C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Maximum Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . 80C/W Electrical Characteristics: (TA = +25C, VS = 12V unless otherwise specified) Parameter Supply Voltage Supply Current Symbol VS Output pulses at Pin2 and Pin3 OFF IS I3 = 0 Test Conditions Min 10.0 - - Typ 12.0 - 40 Max 13.2 4 52 Unit V V mA Electrical Characteristics (Cont'd): (TA = +25C, VS = 12V unless otherwise specified) Parameter Input Signal (Peak-to-Peak) Input Switching Voltage Input Switching Current Input Blocking Current for Noise Suppression Input Switching Voltage for Noise Suppression Leakage Current Vertical Sync Separator Input Signal (Peak-to-Peak) Input Switching Voltage Input Switching Current Leakage Current Vertical Sync Pulse Output Voltage Output Resistance Delay between Leading Edge of Input and Output Signals Delay between Trailing Edge of Input and Output Signals Vertical Sync Pulse Duration Protection Circuit Input Voltage for Switching Off the Output Pulses Input Resistance Input Current Flyback Pulse Input Threshold Voltage of Blanking `Generator Input Threshold Voltage of Phase Comparator Input Switching Current Output Pulse Output Voltage (Peak-to-Peak) Output Current Output Resistance Output Pulse Duration Composite Blanking and Key Pulse Key Pulse Output Peak Voltage Blanking Pulse Output Voltage Output Resistance V7K V7B R7 9 4.2 - 11 4.5 100 - 4.8 - V V V3 I3 R3 tp I3 = 150mAP-P V3 = 5V At leading edge of output pulse At trailing edge of output pulses - - - - 20 10 500 3 20 22 - - - - 26 V mA s V6 V6 I6 V6 1.7V - - - 1.5 7.6 0.23 - - - V V mA V4 R4 I4 Output pulses OFF Output pulses ON - 1 - 5 - - 200 - 0.5 - - - V V k A Vi V9 I9 I9 V10 R10 tLV tTV tV I9 = 80A I9 = 1.4V V9 = -5V No load at Pin10 1 - - - 11 - - - - 3 1.5 5 - - 10 17 50 190 6 - - 1 - - - - - V V A A k k s s s Symbol Vi V8 I8 I8 V8 I8 V8 = -5V I8 = 80A V8 = 1.4V Test Conditions Min 1 - - - - - Typ 3 1.5 10 0.9 2.1 - Max 6 - - - - 1 Unit V V A mA V A Horizontal Sync Separator and Noise Gate Electrical Characteristics (Cont'd): (TA = +25C, VS = 12V unless otherwise specified) Parameter Phase Relation between Trailing Edge of Key Pulse and Middle of Sync Input Pulse Key Pulse Duration Delay between Flyback Pulse and Blanking Pulse Internal Gating Pulse Gating Pulse Duration Phase Relation between Middle of Sync Pulse and Trailing and Leading Edge of Gating Pulse Coincidence Detector Output Voltage Peak Output Current VCR Switch Input Voltage Output Current Time Constant Switch Output Voltage Output Resistance Oscillator Low Level Threshold Voltage High Level Threshold Voltage Charge Current Discharge Current Current Source Supply Voltage Current Source Supply Current Free-Running Frequency Adjustment Range Frequency Control Sensitivity Frequency Change when VS Drops to 4V Oscillator-Flyback Pulse Phase Comparator Control Voltage Range Peak Control Current Input Current (Blocked Phase Detector) Permissible Delay between Output Pulse Leading Edge and Flyback Pulse Leading Edge Static Control Error V5 I5 I5 td - - - 9.4 to 8.2 - - tp - tf 0.5 5 - V mA A s V14 V14 I14 I14 V15 I15 fo - - - - - - - - - - 5.4 8.2 0.6 0.3 3 0.3 15625 10 52 - - - - - - - - - - 10 V V mA mA V mA Hz % Hz/A % V12 R12 4.5V < V11 < 8V V11 > 8.5V or V11 < 4V - - - 3 100 40 - - - V k V11 -I11 I11 0 to 4 or 8.5 to 12 35 0.4 - - - - V A mA V11 I11 With coincidence Without coincidence - - - 6.8 - 0.5 - 4 - V V mA tq t - - 7.5 3.75 - - s s Symbol tSK Test Conditions Min - Typ 2.7 Max - Unit s s s Composite Blanking and Key Pulse (Cont'd) tK ttb V6 = 1.7V 3.5 - 3.8 - - 0.2 - - 0.2 % Electrical Characteristics (Cont'd): (TA = +25C, VS = 12V unless otherwise specified) Parameter Control Voltage Range Control Peak Range Phase Lock Loop Catching and Holding Range Overall Phase Relationship Phase Relation between Middle of Flyback Pulse and Middle of Sync Pulse Adjustment Sensitivity to - - - Pin Connection Diagram VCC 1 Output (-) 2 Output (+) 3 Protection Circuit Input 4 Phase Shifter Filter 5 Flyback Input 6 Key & Blanking Pulse Output 7 Sync Separator Input 8 16 GND 15 OSC Current Control 14 OSC 13 Continuous Current Output 12 Time Constant Switch 11 Coincidence Detector 10 Vertical Sync Output 9 Vertical Sync Separator Input 2.6 65 10 - - - s mV/s A/s f Symbol V13 I13 - - - Test Conditions Min Typ 4.6 to 1.4 2 2 700 - - - Max Unit V mA kHz/s Hz Sync Pulse-Oscillator Phase Comparator 16 9 .260 (6.6) Max 1 8 .785 (19.9) Max .200 5.08) Max .245 (6.22) Min .300 (7.62) .100 (2.54) .700 (17.7) |
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