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.

特性 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