Data Sheet

Data Sheet

NTE1231 & NTE1231A
Integrated Circuit
Complete 4 Watt TV Sound Channel

Description:
Capable of carrying out all of the functions of a TV sound channel, the NTE1231 and NTE1231A silicon monolithic integrated circuits consist of a six-stage IF amplifier/limiter, low-pass filter, differential peak detector, DC volume control, regulated power supply, audio preamplifier, and output stage.

The audio power amplifier will deliver 4W of low-distortion audio to a 16? load with a supply of 24V. When used with a 12V supply, such as is found in many portable TV sets, these devices will furnish 1.5W to an 8? loud speaker.

The NTE1231 is supplied in a quad in-line plastic package with a copper lead frame. This device is
designed to use the printed wiring board on which it is mounted for heat dissipation.

The NTE1231A is furnished in a 16-Lead DIP package with heat-sink contact tabs. The webbed lead
configuration (Pin4 & Pin5, Pin12 & Pin13) allows an inexpensive heat sink to be easily attached for
increased power dissipation capability and yet permits the use of a standard IC socket or printed wiring board hole layout.

Features:
High Sensitivity
High AM Rejection
DC Volume Control
High Power Output
Low Distortion
Wide Operating Voltage Range: 9V to 28V
Low Quiescent Current Drain

Replaces:
ECG1231A

Additional Model #'s
76-NTE1231A
NTE1231A

UPC: 768249021919