Description:

The NTE7018 is a TV subsystem circuit intended to be used for base–band demodulation applications. This circuit consists of all small–signal functions (except the tuner) required for a quality color television receiver. The only additional circuits needed to complete a receiver are a tuner, the deflection output stages, and a color decoder. The NTE1567 NTSC color decoder, and the NTE1754 vertical output, are ideal complements for the NTE7018.

Features:

Vision IF amplifier with synchronous demodulation

Tuner AGC (negative–going control voltage with increasing signal)

AGC detector for negative modulation

AFC circuit

Video preamplifier

Sound IF amplifier, demodulator, and preamplifier

DC volume control

Horizontal synchronization circuit with two control loops

Extra time constant switches in the horizontal phase detector

Vertical synchronization (divider system) and sawtooth generator with automatic amplitude adjustment for 50 or 60HZ

Three level sandcastle pulse

Applications:

Color television receiver

CATV converters

Base–band processing