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| NTE1747 Integrated Circuit TV Video Processing Circuit Description: The NTE1747 is an integrated circuit in a 28-Lead DIP type package designed for color TV video and chrominance signal processing circuit. Features: D Including Video and Chrominance Signal Processing Circuit on a Single Chip, for Compact Set Design D Including Circuit For Compensating Skin Color Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +14.4V Circuit Voltage, V2,3,10,11-12,19,20,28-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to +14.4V Circuit Current, I25,26,27,28,29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40mA to 0mA Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +150C Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter Total Circuit Current Demodulation Color Difference Output Voltage Demodulation Color Difference Output Voltage ACC Characteristics Oscillation Frequency fosc Change with Supply Voltage fosc Change with Ambient Temperature Control Sensitivity Symbol Itot eo(max) eo(typ) ACC fosc VCC = 12V Rainbow 150mVP-P, Contrast Max., Color Max. Rainbow 150mVP-P, Contrast Max., Color Typ. Rainbow 15mVP-P, ACC-eo Typ Difference between Pin8 input invalid signal & standard sample TA = -20 to +70C, for TA = +25C Change to Pin18 Df when V1 (8.6V) and V2 (8.2V) are applied to Pin15. Test Conditions Min 40 4.6 1.35 0.65 - - 0 1.9 Typ 54 5.3 1.75 0.88 - - 1.5 2.5 Max 67 6.0 2.15 1.05 150 120 2.5 3.2 Unit mA Vp-p Vp-p times Hz Hz Hz/deg. Hz.mV Dfosc/VCC VCC = 12V 20%, for VCC = 12V Dfosc/TA b Electrical Characteristics (Cont'd): (TA = +25C unless otherwise specified) Parameter Phase Detector Phase Hold Characteristics APC Pull-in Range Demodulation Output Ratio Demodulation Output Ratio Demodulation Angle Demodulation Angle Color Killer Level Video Voltage Amplification Symbol Df fAPC R/B G/B DG - - 5 % Demodulation DC Output Voltage DC Voltage Difference Between Demodulation Outputs DEO Change with Supply Voltage DEO Change with Ambient Temperature AIC Switching Level Chroma Voltage Gain AIC Voltage Gain AIC Sensitivity Phase Compensation Center Phase Compensation Range Phase Compensation Range Phase Compensations Quantity Phase Compensations Quantity Max. Phase Compensation Quantity EO(DC) DEX-Y 7.20 - - - 160 1.6 14.5 0.7 115 100 7.60 - 0 0 260 2.2 19.0 1.15 123 112 -120 21.5 -22.5 59 -63 8.05 300 60 60 340 2.7 23.5 1.5 134 124 -132 26 -28 67 -71 V mV mV mV mVp-p Vp-p dB Vp-p deg. deg. deg. deg. deg. deg. deg. DEX-Y/VC VCC = 12V 20%, for VCC = 12V C DEX-Y/TA TA = -20 +70C. for TA = +25C VSW GVchroma GvAIC SAIC Q0 Qc1 Qc2 QQ1 QQ2 QQmax1 QQmax2 Chroma/Burst 150mVP-P Color Compensation ON f = 3.58MHz, Pin21 level when Pin 0 = 10V Chroma/Burst 350/150mVP-P, Phase 123 Chroma/Burst 200/150mVP-P, Phase 123' color killer OFF Chroma/Burst 300/100mVP-P, Phase 0 tint center -108 17 -18 51 -55 Pin Connection Diagram Pedestal Clamp Filter Brightness Control Contrast Control Blank Level Filter Video Signal Input (1) Video Signal Input (2) Chrominance Signal Bypass Chrominance Signal Input GND Color Control Tint Control Burst Gate Pulse Input VCC ACC Filter 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Picture Control B - Y Demod Output G - Y Demod Output R - Y Demod Output VCO Filter Video Signal Output VCO Filter AIC Input Blanking Pulse Input AIC Color Compensation Switch VCO Input VCO Output Color Killer Filter APC Filter 14 1 15 28 1.469 (37.32) Max .540 (13.7) .250 (6.35) .100 (2.54) 1.300 (33.02) .122 (3.1) Min .600 (15.24) |
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