Features: 1) All the functions required for headphone stereo units on a single chip.2) Preamplifier includes a mute amplifier.3) Direct-coupled preamplifier.4) No output coupling capacitors required for the power amplifiers.5) Power amplifiers do not require oscillation prevention measures.6) Powe...
BA3528AFP: Features: 1) All the functions required for headphone stereo units on a single chip.2) Preamplifier includes a mute amplifier.3) Direct-coupled preamplifier.4) No output coupling capacitors required...
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The BA3528AFP and AB3529AFP have been developed for headphone stereos. They run off a 3V power supply, and include dual pre- and power amplifiers, and a motor governor.
The preamplifiers are direct-coupled, and the power amplifiers use a fixed-gain NF circuit. An on-chip VREF amplifier makes output coupling capacitors unnecessary, and the motor governor uses a bridge ratio system to minimize the external parts count and make reliable and compact designs possible.