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| NTE818 Integrated Circuit TV Luminance Processor Features: D Luma/Chroma Tracking D Automatic Beam Limiter D DC Restoration D Luma/Chroma Vertical Blanking D Single DC Gain Control D Low External Component Count Description: A single DC picture control adjusts the gain of both the low-level video and chroma amplification in color TV receivers which employ the NTE818Luminance Processor. Automatic brightness limiting (ABL) and vertical maintaining a constant black level. During the horizontal blanking interval, the black level is determined by clamping the black-level reference (the "back porch"). This allows for 100% DC restortion. Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Luma Sink Current, I9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670mW Derate Above 70C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/C Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +85C Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Electrical Characteristics: (TA = +25C unless otherwise specified) Position of Test Switches Parameter Static Characteristics Supply Current Luma Input Current Luma Output Voltage Test Pin 14 15 13 9 9 9 Luma Blanking Current Video Output Short Circuit Current Clamped Video Level Clamp Leakage Current Chroma Output Voltage Gate Leakage Current Loop Filter Voltage 9 11 12 12 6 6 10 1 A 1 1 1 2 2 2 3 1 1 1 2 3 1 1 B 4 4 4 2 3 1 1 4 4 4 4 1 4 4 C 2 2 2 2 2 2 2 1 2 2 2 2 2 2 D 1 1 1 2 2 2 2 1 1 1 1 2 1 1 E 5 5 5 3 3 1 3 5 1 4 5 3 2 2 F 2 2 2 1 1 1 1 2 1 1 2 1 1 1 G 3 3 2 1 1 1 1 2 1 1 3 1 1 1 Min 15 425 1.8 5.3 11.6 14.1 - 5.0 2.5 0 7.3 10.3 0 5.0 Max 30 570 4.5 7.5 13.0 15.7 1.0 14 3.9 365 9.1 11.6 400 5.8 Unit mA A V V V V A mA V nA V V nA V Electrical Characteristics (Cont'd): (TA = +25C unless otherwise specified) Position of Test Switches Parameter Dynamic Characteristics Video Output Minimum Mid Maximum Video Gain Ratio Video Frequency Response Limited Video Gain Chroma Output Minimum Mid Maximum Chroma Gain Ratio Limited Chroma Gain Video/Chroma Gain Ratio 6 3 9 9 6 6 6 3 3 1 2 3 Test Pin 9 9 9 A 1 2 3 B 1 1 1 1 1 2 2 2 2 C 1 1 1 1 2 1 1 1 2 D 2 2 2 2 2 1 1 1 1 (Test 4) (Test 3) (Test 2) f = 3.58MHz E F (Test 1) G Min 0.20 0.80 1.50 5.0 1.0 0.2 50 260 400 5.0 35 0.85 Max 0.56 1.50 2.60 8.5 2.6 0.4 150 440 750 8.5 150 1.15 mVrms Vrms Vrms mVrms mVrms mVrms Unit Vrms Vrms Vrms Test 2/Test 1 (Test A) Test 4/Test 3 (Test B) Test A/Test B Pin Connection Diagram Voltage Reference 1 Automatic Brightness Limiter 2 ABL or GND 3 Chrominance Input 4 GND 5 Chrominance Output 6 Vertical Pulse Input 7 Video Peak 8 16 9 16 DC Picture Control 15 Luminance Input 14 VCC 13 Luminance Output 12 Clamp 11 Video Output 10 Horizontal Pulse Input 9 Luminance Output .260 (6.6) Max 1 .785 (19.9) Max .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7) 8 .300 (7.62) |
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