Overview
The LV1150 is a virtual surround system Bi-CMOS IC for video soundtracks and audio.
The main feature of this IC is the ability to create an audio ambience equivalent to that of a multichannel system by adding a signal to which virtual surround processing has been applied to the left and right channel input signals. It furthermore allows modification of this effect by the use of L+R and L–R passive matrix processing and adjustment of the surround processing level with a level control.

Functions and Features
• Virtual surround function
• Passive matrix: L+R, L–R
• Adjustable surround effect level
• Bypass and virtual surround (L+R, L–R) switching function
• Output filters are provided on chip.
• On-chip VDD circuit
• ADM technique based A/D and D/A converters
• Simulated stereo for monaural input signals
• Package: DIP24S