Description:

The NTE843 is a linear IC synchronous detector employing a phase–locked oscillator to demodulate the 45.75MHz video IF signals in color–TV receivers. The NTE843 features AFT voltage for DC control of the tuner; an adjustment for the zero–carrier DC level at the video output terminal; an amplifier arrangement for inverting noise impulses toward the black level; and a separate output terminal (non–inverting) for the sound IF.

Features:

● PLL Carrier Oscillator with Wide Pull–In and Hold–In Range

● Excellent Low–Level Detector Linearity

● Noise Inversion at Video Output

● Wide Range, Variable Zero–Carrier Level Adjustment

● Automatic Fine Tuning (AFT) Detector

● Separate Output for Sound Take–Off

● 12V Power Supply