Dual Preamplifier With Alc Detector Circuit - Rohm

The BA3313L is a dual preamplifier IC with built-in ALC detector circuit, designed for use in stereo Radio cassette record- ers. It comes in a compact 12-pin ZIP package, and has two record/playback preamplifiers, and an ALC detector circuit. The preamplifiers CAN be directly coupled to the tape head without coupling capacitors to prevent tape head magnetiza- tion and pop noise generation. With the built-in ALC detector circuit, an ALC circuit with large dynamic range CAN be constructed with addition of just an external time constant circuit. By ROHM Co. Ltd.