BA3308

LIN-IC 2xNF-V, ALC, Ucc=4,5…14V

The BA3308 and BA3308F are dual preamplifier ICs with built-in ALC circuits, and have been designed for use in stereo
radio-cassette recorders and tape recorders. They come in compact 9-pin SIP (BA3308) and 14-pin MF (BA3308F)
packages, and have two record / playback preamplifiers, and an ALC circuit. The preamplifiers have high gain and low
distortion, and can be directly coupled to the tape head without coupling capacitors. This prevents tape head
magnetization and pop noise generation.
A built-in rectifier means that an ALC circuit with good channel balance and large dynamic range can be constructed with
addition of just an external time constant circuit.
The ICs also include power-on mute circuits that suppress “pop” noise generation.
!Applications
Stereo radio cassette recorders, cassette decks and home stereo systems and music centers
!Features
1) Built-in ALC rectifier diode.
2) Wide operating power supply voltage range (VCC=6.0V to 14V)
3) Low current dissipation (IQ=3.5mV)
4) High gain (GVO=80dB)
5) Low distortion (THD=0.1%)
6) Low noise (VNIN=1μVrms)
7) Input coupling capacitors and not necessary.
8) Good ALC channel balance.
9) Power-on mute circuit.
10) ALC dynamic range can be varied by the addition of an external input resistor.