Overview

The LV1150M 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: MFP24 (375-mil lead pitch)