Description:

The NTE731 is an integrated circuit in a 16−Lead DIP type package and performs many of the functions which are often collectively referred to as the video “jungle”. This device provides keyed AGC for the tuner (forward and/or reverse) and the video IF (reverse), furnishes stripped synchronization signals in both polarities, and provides low−impedance video and noise−cancelled video output signals. The NTE731 is used as a low−cost, high−quality circuit in monochrome as well as color TV receivers.

The circuit combines high performance with economy by eliminating the need for either AGC or noise threshold adjustments. Positive noise gating and high sync. separator gain assure excellent performance over a wide range of signal conditions.

Features:

• High−Impedance Video Input

• Low−Impedance Emitter−Follower Video Output

• Forward AGC for Video IF

• Delayed Forward AGC for NPN Bipolar Tuner

• Delayed Reverse AGC for PNP, MOSFET, or Tube Tuner

• Positive and Negative Sync Outputs

• Preset Noise Detector

• Single−Supply Operation