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NTE846

Integrated Circuit TV Video Modulator

NTE Electronics 

NTE846

Integrated Circuit

TV Video Modulator

Description:

The NTE846 is designed to interface color difference, audio, and luminance signals to the antenna

terminals of a TV receiver. It consists of a sound subcarrier oscillator, chroma subcarrier oscillator,

quatrature chroma modulators, and RF oscillators and modulators for two low–VHF channels.

The NTE846 allows video information from VTR’s test equipment, games, or similar sources to be

displayed on black and white or color TV receivers.

Features:

D DC Channel Switching

D Excellent Oscillator Stability

D 12V to 18V Supply Operation

D Low Intermodulation Products

D 5Vp–p Chroma Reference Signal

D May Be Used to Encode Composite Video

Absolute Maximum Ratings:

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19V

(V16–V15) Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V

(V14–V10) Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V

(V14–V11) Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V

Power Dissipation Package (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1390mW

Chroma Osc Current I17 Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA

Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to 150°C

Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C

Lead Temperature (During Soldering, 10 seconds), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C

Note 1. For operation in ambient temperatures above 25°C, the device must be derated based on

a 150°C maximum junction temperature and a thermal resistance of 90°C/W junction to am-

bient.

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