UPC1857ACT PDF File ( Datasheet )

DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT PC1857A 2 SOUND CONTROL IC WITH SURROUND AND I C BUS DESCRIPTION The PC1857A is a sound control IC with I2C bus. It has functions to control volume, balance, and tone, and a phase shift matrix surround function. The surround function achieves wide sound expansion using only two front speakers. Three modes can be selected: movie mode that increases the presence of sound with stereo sound input, music mode emphasizing vocal music, and simulated mo