DESCRIPTION

The TAA661 is a monolithic integrated circuit

particularly designed for use in TV sound and

FM/IF amplifiers. The circuit uses a limiter

amplifier, a coincidence-gate detector and a

voltage regulator. By using the TAA661 a detector

transformer is eliminated and the audio signal is

capable of driving an output amplifier directiy.

Detector alignment is obtained by adjusting a

single coil which provides the quadrative signal to

the coincidence gate detector.

FEATURES

High Gain

Frequency Range 5KHz to 60MHz

Threshold Limiting Voltage 100µV @ 5.5MHz.

Stock No. Gate Coincidence Detector

Audio Output Voltage 1.4V r.m.s. (THD=1%)