305

Audio ICs

3V dual pre / power amplifier

BA3513AFS

The BA3513AFS is a dual, pre / power amplifier designed for headphone stereo applications. It has all of the basic signal

circuits required for tape players, and operates off a 3V supply.

The auto-reverse-compatible preamplifier block and fixed-gain power amplifier blocks are independent to facilitate noise

reduction.

The preamplifier block can be direct-coupled, and the power amplifiers do not require bootstrap capacitors, and use a

fixed-gain negative feedback circuit to reduce the number of external components required and allow compact and reli-

able set designs.

FApplications

3V headphone stereos and 3V radio cassette players.

FFeatures

1) Dual preamplifiers and power amplifiers on one chip.

2) Preamplifier suitable for auto-reverse use.

3) Transistor switch provided for metal-tape muting.

4) Power amplifier gain is optimized for noise reduction.

5) Radiation prevention pin provided.

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)