NTE7112

Integrated Circuit

Color TV Video Signal/Chrominance

Signal Processing Circuit

Description:

The NTE7112 is an integrated circuit in an 18–Lead DIP type package designed for use in color TV

video signal and chrominance signal processing circuits.

Features:

D Chrominance signal processing circuitry for either PAL or SECAM system color TV receivers

can be made by using the NTE7112 in combination with the AN5622 and the AN5630N:

PAL System: NTE7112, AN5622

SECAM System: NTE7112, AN5622, AN5630N

D Incorporating luminance signal mixer circuit, provides R, G, B original color output

D DC Transmission Quality: 100%

D All DC controlled adjustment simplifies wiring operation (Color/Contrast/Brightness adjustment)

14.4V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+6V to –4V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+7mA to –15mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+3mA to –3mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

800mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20

° to +70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55

° to +155°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Total Circuit Current

27

37

47

mA

Voltage Gain (Max Video)

3.1

4.0

4.9

times

Contrast Attenuation Ratio (Min)

Contrast max.,

Picture min.

0.15

0.19

0.26

times

Frequency Characteristics (Video)

cy when output/input is –3dB, Pic-

ture min. (10kHz level assumed as

0dB)

6

–

–

MHz