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MITSUMI

Q Xpander Processors MM1326, 1354, 1369

Q Xpander Processors

Monolithic IC MM1326, 1354, 1369

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.

This IC, produced by Mitsumi, faithfully incorporates algorithms developed by Q Sound Labs, Inc., the world

leader in sound enhancement.

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 碌Vrms with Q Xpander on (MM1326)

60 碌Vrms with Q Xpander on (MM1354)

Package

SSOP-20A (MM1326AJ)

SDIP-22A (MM1326AD, MM1354AD, MM1354BD)

SSOP-24A (MM1354AJ)

SDIP-24A (MM1369AD, MM1369BD)

Applications

1. Computer sound boards

2. Active speaker systems

3. TV game equipment and other amusement devices

4. TVs, monitors, audio equipment

Line-Up

MM1326

Variable sound

spreading feature

Pseudo-stereo

function

Operating power

supply voltage

Fixed

No

4.5~10.0 (V)

MM1354

Variable

No

4.5~12.0 (V)

MM1369

Variable

Yes

(spreading variable)

8.0~10.0 (V)

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