Product Summary

The BA3312N is a dual preamplifier with ALC designed for use in stereo radio-cassette recorders. The BA3312N comes in a compact 12-pin ZIP package and has two record / playback preamplifiers, and an ALC circuit. The preamplifiers are directly coupled to the head and do not require coupling capacitors. This prevents tape head magnetization and pop noisegeneration. An ALC circuit with large dynamic range can be constructed with addition of just an external detector and time constantcircuit. Applications of the BA3312N include Stereo radio cassette players.

Parametrics

BA3312N absolute maximum ratings: (1)power supply voltage, VCC: 14V; (2)power dissipation, Pd: 400mW; (3)operating temperature, Topr: -25 to 75℃; (4)storage temperature, Tstg: -55 to 125℃.

Features

BA3312N features: (1)The input block uses a bias circuit that does not re-quire coupling capacitors; (2)ALC circuit requires addition of just an external detector and time constant circuit; (3)Wide operating power supply voltage range; (4)High gain; (5)Low noise.

Diagrams

BA3312N block diagram

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