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NTE818 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit TV Luminance Processor
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 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/°C
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +85°C
Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Position of Test Switches
Parameter
Static Characteristics
Supply Current
Luma Input Current
Test Pin A B C D E F G Min Max Unit
14 1 4 2 1 5 2 3 15 30 mA
15 1 4 2 1 5 2 3 425 570 µA
Luma Output Voltage
13 1 4 2 1 5 2 2 1.8 4.5 V
9
2 2 2 2 3 1 1 5.3 7.5 V
9
2 3 2 2 3 1 1 11.6 13.0 V
9
2 1 2 2 1 1 1 14.1 15.7 V
Luma Blanking Current
Video Output Short Circuit Current
9
3 1 2 2 3 1 1 – 1.0 µA
11 1 4 1 1 5 2 2 5.0 14 mA
Clamped Video Level
12 1 4 2 1 1 1 1 2.5 3.9 V
Clamp Leakage Current
12 1 4 2 1 4 1 1 0 365 nA
Chroma Output Voltage
6
2 4 2 1 5 2 3 7.3 9.1 V
6
3 1 2 2 3 1 1 10.3 11.6 V
Gate Leakage Current
10 1 4 2 1 2 1 1 0 400 nA
Loop Filter Voltage
1
1 4 2 1 2 1 1 5.0 5.8 V
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