Outline

These ICs are analog stereo enhancement processors. They use patented Q Xpander technology to create a

stereo image with depth in three dimensions from ordinary left and right input channels.

There is no need for any special playback equipment; the enhanced audio effect can be experienced using

standard stereo audio equipment.

Features

1. Sound spreading sensation can be varied at will using an external VR (MM1354, MM1369)

2. Pseudo-stereo effects can be obtained from monaural audio signals (MM1369)

3. Sound spreading sensation can also be varied with a VR for pseudo-stereo from monaural input (MM1369)

4. Q Xpander on/off and pseudo-stereo on/off switching at TTL level

5. Internal filter circuit for few external components (MM1369)

6. No need for input signal encoding or special external equipment; playback possible using ordinary stereo

equipment

7. Low-noise design: 55 μVrms with Q Xpander on (MM1326)

60 μVrms with Q Xpander on (MM1354)

Applications

1. Computer sound boards

2. Active speaker systems

3. TV game equipment and other amusement devices

4. TVs, monitors, audio equipment