Datasheet MM1354AD, MM1369BD, MM1326AJ Datasheet (MITSMI)

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 µVrms with Q Xpander on (MM1326)

60 µVrms 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 MM1354 MM1369

Variable sound

spreading feature

Pseudo-stereo

function (spreading variable)

Operating power

supply voltage

Fixed Variable Variable

No No

4.5~10.0 (V) 4.5~12.0 (V) 8.0~10.0 (V)

Yes

MITSUMI

[MM1326]

Absolute Maximum Ratings

Item Symbol Ratings Units

Storage temperature T

Operating temperature T

Power supply voltage V

Input voltage V

Output voltage I

Allowable loss Pd 500 mA

STG

OPR

CC max. 12 V

IN max. GND

O max. 10 mA

Recommended Operating Conditions

Item Symbol Ratings Units

Operating temperature T

Operating voltage V

OPR

OP 4.5~10.0 V

Q Xpander Processors MM1326, 1354, 1369

-

40~+125

-

20~+75

<

IN

V

=

-

20~+75

<

CC V

V

=

°

C

°

C

°

C

Electrical Characteristics

Item Measurement conditions Min. Typ. Max. Units

Consumption current 15 20 mA

Output voltage

Voltage gain Q Xpander 1 SG1: 1Vrms, 1kHz, SG2: no signal 5 6 7 dB
Voltage gain Q Xpander 2 SG1: 1Vrms, 1kHz, SG2: no signal
Voltage gain Q Xpander 3 SG1: no signal, SG2: 1Vrms, 1kHz 5 6 7 dB
Voltage gain Q Xpander 4 SG1: no signal, SG2: 1Vrms, 1kHz

Voltage gain bypass 1 SG1: 1Vrms, 1kHz, SG2: no signal
Voltage gain bypass 2 SG1: no signal, SG2: 1Vrms, 1kHz

Input resistance 21 30 39 kΩ

Power supply voltage rejection ratio V

Total harmonic distortion ratio Q Xpander

Total harmonic distortion ratio bypass

Output noise voltage Q Xpander

Output noise voltage bypass

SN ratio Q Xpander

SN ratio bypass

L-R channel balance L, R channels=1Vrms, 1kHz, Bypass=0V

Bypass pin voltage (H)

Bypass pin voltage (L)

Bypass pin voltage (H)

Bypass pin voltage (L)

1: Output voltage amplitude at f=1 kHz such that total output harmonic distortion is 1%

*

2: Voltage at which bypass pin (pin 2) is regarded as H (Q Sound mode)

*

3: Voltage at which bypass pin (pin 2) is regarded as L (bypass mode)

*

4: When Vbyp=5 V, current flowing into bypass pin (pin 2)

*

5: When Vbyp=0 V, current flowing from bypass pin (pin 2)

*

L, R channels=no signal, BW=20Hz to 20kHz, A curve
L, R channels=no signal, BW=20Hz to 20kHz, A curve

L, R channels=1Vrms, 1kHz, BW=20Hz to 20kHz, A curve

L, R channels=1Vrms, 1 kHz, BW=20Hz to 20 kHz, A curve

CC=9V+200mVrms, f=1kHz 44 50 dB

Lch=1Vrms, Rch=no signal
Lch=no signal, Rch=1Vrms
Lch=1Vrms, Rch=no signal
Lch=no signal, Rch=1Vrms

1 2 2.8 Vrms

*

2 2.1 V

*

3 0.7 V

*

4 350 µA

*

5

*

-

1 0.5 2 dB

-

1 0.5 2 dB

-

0.5 0 0.5 dB

-

0.5 0 0.5 dB

0.3 0.7 %

0.03 0.3 %

55 100

15 32
80 85 dB
90 95 dB

-

10 1dB

-

10 µA

µVrms
µVrms

MITSUMI

[MM1354]

Absolute Maximum Ratings

Item Ratings Units

Storage temperature

Operating temperature

Power supply voltage 15 V

Input voltage GND

Output voltage 10 mA

Allowable loss 650 mA

Recommended Operating Conditions

Item Ratings Units

Operating temperature

Operating voltage 4.5~12.0 V

Q Xpander Processors MM1326, 1354, 1369

-

40~+125

-

20~+75

<

V

=

-

20~+75

<

IN

CC V

V

=

°

C

°

C

°

C

Electrical Characteristics

Item Measurement conditions Min. Typ. Max. Units

Consumption current 16 21 mA
Voltage gain Q Xpander 1 SG1:1Vrms, 1kHz, SG2: no signal 3 4 5 dB
Voltage gain Q Xpander 2 SG1:1Vrms, 1kHz, SG2: no signal
Voltage gain Q Xpander 3 SG1: no signal, SG2: 1Vrms, 1kHz 3 4 5 dB
Voltage gain Q Xpander 4 SG1: no signal, SG2: 1Vrms, 1kHz

Voltage gain bypass 1 SG1:1Vrms, 1kHz, SG2: no signal
Voltage gain bypass 2 SG1: no signal, SG2: 1Vrms, 1kHz

Input resistance 21 30 39 kΩ

Input voltage amplitude (1)

Input voltage amplitude(2)

Total harmonic distortion ratio Q Xpander

Total harmonic distortion ratio bypass

Output noise voltage Q Xpander

Output noise voltage bypass

L-R channel balance L, R channels=1Vrms, 1kHz, Bypass=0V

Bypass pin voltage (H)

Bypass pin voltage (L)

Bypass pin voltage (H)

Bypass pin voltage (L)

1: Input voltage amplitude at f=1 kHz such that total output harmonic distortion is 1%. However, signals

*

input to SG1 and SG2 are in phase (phase difference 0

2: Input voltage amplitude at f=1 kHz such that total output harmonic distortion is 1%. However, signals

*

input to SG1 and SG2 are opposite in phase (phase difference 180

3: Voltage at which bypass pin (pin 22) is regarded as H

*

4: Voltage at which bypass pin (pin 22) is regarded as L

*

5: When Vbyp=5V, current flowing into bypass pin

*

6: When Vbyp=0V, current flowing from bypass pin

*

Lch=1Vrms, Rch=no signal, Lch=no signal, Rch=1Vrms
Lch=1Vrms, Rch=no signal, Lch=no signal, Rch=1Vrms

L, R channels=no signal, BW=20Hz to 20kHz, A curve
L, R channels=no signal, BW=20Hz to 20kHz, A curve

1 1 1.4 Vrms

*

2 0.5 0.7 Vrms

*

3 2.1 V

*

4 0.7 V

*

5 350 µA

*

6

*

°

).

°

).

-

1 0.5 2 dB

-

1 0.5 2 dB

-

5.6-5.1-4.6 dB

-

5.6-5.1-4.6 dB

0.4 1.0 %

0.03 0.3 %
60 100
15 32

-

10 1dB

-

10 µA

µVrms
µVrms

MITSUMI

Absolute Maximum Ratings

Q Xpander Processors MM1326, 1354, 1369

[MM1369]

Item Ratings Units

Storage temperature

Operating temperature

Power supply voltage 15 V

Input voltage GND

Output voltage 10 mA

Allowable loss 650 mA

-

40~+125

-

20~+75

<

V

=

<

IN

CC V

V

=

°

C

°

C

Recommended Operating Conditions

Item Ratings Units

Operating temperature

Operating voltage 8.0~10.0 V

-

20~+75

°

C

Electrical Characteristics

Item Measurement conditions Min. Typ. Max. Units

Consumption current 20 26 mA
Voltage gain Q Xpander 1 SG1: 1Vrms, 1kHz, SG2: no signal 1.5 3.5 5.5 dB
Voltage gain Q Xpander 2 SG1: 1Vrms, 1kHz, SG2: no signal
Voltage gain Q Xpander 3 SG1: no signal, SG2: 1Vrms, 1kHz 1.5 3.5 5.5 dB
Voltage gain Q Xpander 4 SG1: no signal, SG2: 1Vrms, 1kHz

Voltage gain bypass 1 SG1: 1Vrms, 1kHz, SG2: no signal

Voltage gain bypass 2 SG1: no signal, SG2: 1Vrms, 1kHz
Voltage gain pseudo-stereo 1 SG: 1Vrms, 1kHz, SG2: no signal
Voltage gain pseudo-stereo 2 SG1: no signal, SG2: 1Vrms, 1kHz

Output phase (1) SG1: 1Vrms, 1kHz, SG2: no signal
Output phase (2) SG1: no signal, SG2: 1Vrms, 1kHz

Input resistance (1) Vbyp1, 2=0V, f=20Hz 21 30 39 kΩ
Input resistance (2) Vbyp1, 2=0V, f=1kHz 8 11 14 kΩ
Input resistance (3) Vbyp1, 2=0V, f=20kHz 5 7 9 kΩ

Input voltage amplitude (1)
Input voltage amplitude (2)

Total harmonic distortion ratio Q Xpander

Total harmonic distortion ratio bypass

Output noise voltage Q Xpander

Output noise voltage bypass

L-R channel balance L, R channels=1Vrms, 1kHz, Vbyp1,2=0V

Bypass pin voltage (H)

Bypass pin voltage (L)

Bypass pin voltage (H) Vbyp=5V

Bypass pin voltage (L) Vbyp=0V

Pin 13 offset voltage Vbyp1=0V

Pin 3 offset voltage Vbyp1=0V
Pin 4 offset voltage Vbyp1=0V
Pin 5 offset voltage Vbyp1=0V

1: Input voltage amplitude at f=1 kHz such that total output harmonic distortion is 1%. However, signals

*

input to SG1 and SG2 are in phase (phase difference 0

2: Input voltage amplitude at f=1 kHz such that total output harmonic distortion is 1%. However, signals

*

input to SG1 and SG2 are opposite in phase (phase difference 180

3: Voltage at which bypass pin (pin 22) is regarded as H

*

4: Voltage at which bypass pin (pin 22) is regarded as L

*

5: When Vbyp=5V, current flowing into bypass pin

*

6: When Vbyp=0V, current flowing from bypass pin

*

7:

Defined as the difference in pin 13 DC output voltages on switching from normal stereo mode to pseudo-stereo mode.

*

8:

Defined as the difference in pin 3 DC output voltages on switching from normal stereo mode to pseudo-stereo mode.

*

9:

Defined as the difference in pin 4 DC output voltages on switching from normal stereo mode to pseudo-stereo mode.

*

10:Defined as the difference in pin 5 DC output voltages on switching from normal stereo mode to pseudo-stereo mode.

*

Lch=1Vrms, Rch=no signal, Lch=no signal, Rch=1Vrms

Lch=1Vrms, Rch=no signal,

Lch=no signal, Rch=1Vrms, Vbyp=0V
L, R channels=no signal, BW=20Hz to 20kHz, A curve, Vbyp2=0V
L, R channels=no signal, BW=20Hz to 20kHz, A curve, Vbyp1,2=0V

1 1 1.4 Vrms

*

2 0.5 0.7 Vrms

*

3 2.1 V

*

4 0.7 V

*

5 350 µA

*

6

*

7

*

8

*

9

*

10

*

°

).

°

).

-

20 2dB

-

20 2dB

-

7.5-5.5-3.5 dB

-

7.5-5.5-3.5 dB

-

9.5-7.5-5.5 dB

-

7.5-5.5-3.5 dB

-

75-60-45 dB

-

140-125-110 dB

0.4 1 %

0.4 0.8 %

75 150
20 40

-

1.5 0 1.5 dB

-

10 µA

-

30 0 30 mV

-

30 0 30 mV

-

30 0 30 mV

-

30 0 30 mV

µVrms
µVrms

MITSUMI

[MM1326]

Block Diagram and Application Circuits

Q Xpander Processors MM1326, 1354, 1369

MITSUMI

[MM1354]

Block Diagram and Application Circuits

Q Xpander Processors MM1326, 1354, 1369

MITSUMI

[MM1369]

Block Diagram and Application Circuits

Q Xpander Processors MM1326, 1354, 1369

MITSUMI

10.0 100.0 1.0k

Frequency (Hz)

hertz (log)

10.0k 100.0k

10.0

0

-

10.0

-

20.0

-

30.0

-

40.0

Voltage gain Gr (dB)

10.0 100.0 1.0k

Frequency (Hz)

hertz (log)

10.0k 100.0k

15.0

10.0

5.0

0

-

5.0

-

10.0

Voltage gain Gr (dB)

10.0 100.0 1.0k

Frequency (Hz)

hertz (log)

10.0k 100.0k

10.0

0

-

10.0

-

20.0

-

30.0

-

40.0

Voltage gain Gr (dB)

10.0 100.0 1.0k

Frequency (Hz)

hertz (log)

10.0k 100.0k

15.0

10.0

5.0

0

-

5.0

-

10.0

Voltage gain Gr (dB)

10.0 100.0 1.0k

Frequency (Hz)

hertz (log)

10.0k 100.0k

10.0

0

-

10.0

-

20.0

-

30.0

-

40.0

Voltage gain Gr (dB)

10.0 100.0 1.0k

Frequency (Hz)

hertz (log)

10.0k 100.0k

15.0

10.0

5.0

0

-

5.0

-

10.0

Voltage gain Gr (dB)

Characteristics

[MM1326]

LIN-R

OUT(RIN-LOUT

IN-ROUT(RIN-LOUT

L

) Frequency characteristic
) Voltage gain-Frequency

Q Xpander Processors MM1326, 1354, 1369

LIN-L

OUT(RIN-ROUT

IN-LOUT(RIN-ROUT

L

) Frequency characteristic
) Voltage gain-Frequency

[MM1354]

LIN-R

OUT(RIN-LOUT

IN-ROUT(RIN-LOUT

L

[MM1369]

LIN-R

OUT(RIN-LOUT

L

IN-ROUT(RIN-LOUT

) Frequency characteristic
) Voltage gain-Frequency

) Frequency characteristic
) Voltage gain-Frequency

LIN-L

OUT(RIN-ROUT

IN-LOUT(RIN-ROUT

L

LIN-L

OUT(RIN-ROUT

L

IN-LOUT(RIN-ROUT

) Frequency characteristic
) Voltage gain-Frequency

) Frequency characteristic
) Voltage gain-Frequency

MITSUMI

Speakers with

balance control

Speakers with

balance volume controls

OR

Balance

Centered

Volume

Lef t

Volume

RIght

Q Xpander Processors MM1326, 1354, 1369

Ideal Settings for Q Sound

1. Speaker heights should be equal 2. Speaker faces should be aligned

3. Speaker orientations should be the same 4. Right and left channel volumes should be equal

5. Listening is best midway between the speakers