BA3308-S14-R/KA22241G-S14-R are both UTC branded ICs that can be used interchangeably. They are dual preamplifiers with ALC, linear integrated circuits, packaged in SOP-14, and come in 2500pcs per plate.

Explanation

The UTC BA3308 is designed with dual preamplifier ICs and built-in ALC circuits for stereo amplification. This preamplifier has high gain and low distortion. The built-in rectifier means good channel balance and a large dynamic range for the ALC circuit, which can be constructed as a constant circuit by adding an external time.

Features

*Wide working power supply voltage range

（VCC=4.5V~14V）

*Turn on the silent circuit power to avoid producing "burst" noise.

*No need to input coupling capacitors

*High gain (GVO=80dB) and low noise (VNIN=1 µ Vrms)

*Low distortion (THD=0.1%)

*Built in ALC rectifier diode, with good ALC channel balance

*The ALC dynamic range can be adjusted through an external input resistor.