Part number : BT2323M
Functions : 6-Channel Audio Selector IC
Manufacturer : Boomtech
Package information : 28 Pin Type
6-channel audio input selector (6-Channel Audio Selector IC) VCC: 4.5-9V;
offers four stereo and a set of six channel input;
6 channel built-in 2-channel low-frequency converter and vice low pass filter;
I2C control interface. Package information DIP-28 SOP-28.
PT2323 = BT2323M
Reference site : http://www.elektroda.pl/rtvforum/topic1671451.html
PT2323 Datasheet PDF
PT2323 is a 6-Channel Audio Selector utilizing CMOS Technology specially designed for Home Theater System. It provides a built-in 2-Channel to6-Channel Translator, which can directly mix traditional stereo channel to simulate a 6-Channel audio output. Single power supply (9V), I2C Bus Interface as well as very low Total Harmonic Distortion (THD < 0.005%) and other features are incorporated into a single chip thereby providing very high performance. Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages.