UPC1891A

The UPC1891A is a specific IC to reproduce surround-sound by using a signal matrix.The IC provides wide sound with two speakers and rich,stereophonic sound with three speakers.The IC is based on a unique high-speed and low-noise bipolar process and high-precision on-chip filter technology,and provides ideal sound-field effects by using the minimum number of parts.

Features of the UPC1891A are:(1)built-in high-precision fifter;(2)built-in output adjusting attenuator and mute circuit;(3)2-bit parallel mode select;(4)three modes are available:movie,muisic,and monaural modes;(5)low power consumption:12V/20mA TYP.

The absolute maximum ratings of the UPC1891A can be summarized as:(1):the parameter is supply voltage,the symbol is VCC,the rating is +14,the unit is V;(2):the parameter is input pin voltage,the symbol is VIN,the rating is VCC,the unit is V;(3):the parameter is output pin current,the symbol is IOUT,the rating is ±10,the unit is mA;(4):the parameter is power dissipation,the symbol is PD,the rating is 600,the unit is mW;(5):the parameter is operating temperature,the symbol is Topt,the rating is -20 to +75,the unit is ;(6):the parameter is storage temperature,the symbol is Tstg,the rating is -40 to +125,the unit is .