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Audio ICs
3V dual preamplifier
BA3304F
The BA3304F is a monolithic, dual-preamplifier IC designed for 3V applications. It has been designed especially for lowvoltage operation. The preamplifiers can be directly coupled to the head to minimize the “pop” noise at power on. When combined with the Rohm BA5204, it is a simple matter to design a high-performance circuit for cassette players.
FApplications 3V headphone stereos, 3V micro-cassette players and low-voltage stereo equipment
FFeatures 1) Low noise (VNIN = 1.2µVrms). 2) Input coupling capacitors not required. 3) No input coupling capacitors means high bass stability. 4) Good channel balance.
5) Built-in bias circuit minimizes “pop” noise. 6) Emitter-follower output for low output impedance.
BA3304F Datasheet
