Q Xpander Processors MM1326, 1354, 1369 MITSUMI 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 Variable sound spreading feature Pseudo-stereo function Operating power supply voltage MM1326 MM1354 MM1369 Fixed Variable Variable No No Yes (spreading variable) 4.5~10.0 (V) 4.5~12.0 (V) 8.0~10.0 (V) Q Xpander Processors MM1326, 1354, 1369 MITSUMI [MM1326] Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Input voltage Output voltage Allowable loss Symbol TSTG TOPR VCC max. VIN max. IO max. Pd Ratings -40~+125 -20~+75 12 < GND = VIN <= VCC 10 500 Units °C °C V V mA mA Ratings -20~+75 4.5~10.0 Units °C V Recommended Operating Conditions Item Operating temperature Operating voltage Symbol TOPR VOP Electrical Characteristics Item Consumption current Output voltage Voltage gain Q Xpander 1 Voltage gain Q Xpander 2 Voltage gain Q Xpander 3 Voltage gain Q Xpander 4 Voltage gain bypass 1 Voltage gain bypass 2 Input resistance Power supply voltage rejection ratio Measurement conditions 1 SG1: 1Vrms, 1kHz, SG2: no signal SG1: 1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz SG1: no signal, SG2: 1Vrms, 1kHz SG1: 1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz * Min. Typ. Max. Units 15 20 mA 2 2.8 Vrms 5 6 7 dB -1 0.5 2 dB 5 6 7 dB -1 0.5 2 dB -0.5 0 0.5 dB -0.5 0 0.5 dB 21 30 39 kΩ 44 50 dB VCC=9V+200mVrms, f=1kHz Lch=1Vrms, Rch=no signal Total harmonic distortion ratio Q Xpander Lch=no signal, Rch=1Vrms Lch=1Vrms, Rch=no signal Total harmonic distortion ratio bypass Lch=no signal, Rch=1Vrms Output noise voltage Q Xpander L, R channels=no signal, BW=20Hz to 20kHz, A curve Output noise voltage bypass L, R channels=no signal, BW=20Hz to 20kHz, A curve SN ratio Q Xpander L, R channels=1Vrms, 1kHz, BW=20Hz to 20kHz, A curve 80 SN ratio bypass L, R channels=1Vrms, 1 kHz, BW=20Hz to 20 kHz, A curve 90 L-R channel balance L, R channels=1Vrms, 1kHz, Bypass=0V -1 Bypass pin voltage (H) 2 2.1 Bypass pin voltage (L) 3 Bypass pin voltage (H) 4 Bypass pin voltage (L) 5 -10 * * * * *1: *2:3: *4: * *5: Output voltage amplitude at f=1 kHz such that total output harmonic distortion is 1% Voltage at which bypass pin (pin 2) is regarded as H (Q Sound mode) Voltage at which bypass pin (pin 2) is regarded as L (bypass mode) When Vbyp=5 V, current flowing into bypass pin (pin 2) When Vbyp=0 V, current flowing from bypass pin (pin 2) 0.3 0.7 % 0.03 0.3 % 55 15 85 95 0 100 µVrms 32 µVrms dB dB 1 dB V 0.7 V 350 µA µA Q Xpander Processors MM1326, 1354, 1369 MITSUMI [MM1354] Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Input voltage Output voltage Allowable loss Ratings -40~+125 -20~+75 15 < GND = VIN <= VCC 10 650 Units °C °C V V mA mA Ratings -20~+75 4.5~12.0 Units °C V Recommended Operating Conditions Item Operating temperature Operating voltage Electrical Characteristics Item Consumption current Voltage gain Q Xpander 1 Voltage gain Q Xpander 2 Voltage gain Q Xpander 3 Voltage gain Q Xpander 4 Voltage gain bypass 1 Voltage gain bypass 2 Input resistance 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 Bypass pin voltage (H) Bypass pin voltage (L) Bypass pin voltage (H) Bypass pin voltage (L) *1: *2: *3: *4:5: *6: * Measurement conditions SG1:1Vrms, 1kHz, SG2: no signal SG1:1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz SG1: no signal, SG2: 1Vrms, 1kHz SG1:1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz *1 *2 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 L, R channels=1Vrms, 1kHz, Bypass=0V 3 4 5 6 * * * * Min. Typ. Max. Units 16 21 mA 3 4 5 dB -1 0.5 2 dB 3 4 5 dB -1 0.5 2 dB -5.6 -5.1 -4.6 dB -5.6 -5.1 -4.6 dB 21 30 39 kΩ 1 1.4 Vrms 0.5 0.7 Vrms 0.4 1.0 % 0.03 0.3 % 60 100 µVrms 15 32 µVrms -1 0 1 dB 2.1 V 0.7 V 350 µA -10 µA 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°). 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°). Voltage at which bypass pin (pin 22) is regarded as H Voltage at which bypass pin (pin 22) is regarded as L When Vbyp=5V, current flowing into bypass pin When Vbyp=0V, current flowing from bypass pin Q Xpander Processors MM1326, 1354, 1369 MITSUMI Absolute Maximum Ratings [MM1369] Item Storage temperature Operating temperature Power supply voltage Input voltage Output voltage Allowable loss Ratings -40~+125 -20~+75 15 GND <= VIN <= VCC 10 650 Units °C °C V V mA mA Ratings -20~+75 8.0~10.0 Units °C V Recommended Operating Conditions Item Operating temperature Operating voltage Electrical Characteristics Item Consumption current Voltage gain Q Xpander 1 Voltage gain Q Xpander 2 Voltage gain Q Xpander 3 Voltage gain Q Xpander 4 Voltage gain bypass 1 Voltage gain bypass 2 Voltage gain pseudo-stereo 1 Voltage gain pseudo-stereo 2 Output phase (1) Output phase (2) Input resistance (1) Input resistance (2) Input resistance (3) Input voltage amplitude (1) Input voltage amplitude (2) Total harmonic distortion ratio Q Xpander Measurement conditions SG1: 1Vrms, 1kHz, SG2: no signal SG1: 1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz SG1: no signal, SG2: 1Vrms, 1kHz SG1: 1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz SG: 1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz SG1: 1Vrms, 1kHz, SG2: no signal SG1: no signal, SG2: 1Vrms, 1kHz Vbyp1, 2=0V, f=20Hz Vbyp1, 2=0V, f=1kHz Vbyp1, 2=0V, f=20kHz 1 2 Lch=1Vrms, Rch=no signal, Lch=no signal, Rch=1Vrms Lch=1Vrms, Rch=no signal, Total harmonic distortion ratio bypass Lch=no signal, Rch=1Vrms, Vbyp=0V Output noise voltage Q Xpander L, R channels=no signal, BW=20Hz to 20kHz, A curve, Vbyp2=0V Output noise voltage bypass L, R channels=no signal, BW=20Hz to 20kHz, A curve, Vbyp1,2=0V L-R channel balance L, R channels=1Vrms, 1kHz, Vbyp1,2=0V Bypass pin voltage (H) 3 4 Bypass pin voltage (L) Bypass pin voltage (H) Vbyp=5V 5 Bypass pin voltage (L) Vbyp=0V 6 Pin 13 offset voltage Vbyp1=0V 7 Pin 3 offset voltage Vbyp1=0V 8 Pin 4 offset voltage Vbyp1=0V 9 Pin 5 offset voltage Vbyp1=0V 10 * * * * * * * * * * Min. Typ. 20 1.5 3.5 -2 0 1.5 3.5 -2 0 -7.5 -5.5 -7.5 -5.5 -9.5 -7.5 -7.5 -5.5 -75 -60 -140 -125 21 30 8 11 5 7 1 1.4 0.5 0.7 0.4 -1.5 2.1 -10 -30 -30 -30 -30 Max. Units 26 mA 5.5 dB 2 dB 5.5 dB 2 dB -3.5 dB -3.5 dB -5.5 dB -3.5 dB -45 dB -110 dB 39 kΩ 14 kΩ 9 kΩ Vrms Vrms 1 % 0.4 0.8 75 20 0 150 µVrms 40 µVrms 1.5 dB V 0.7 V 350 µA µA 30 mV 30 mV 30 mV 30 mV 0 0 0 0 Input voltage amplitude at f=1 kHz such that total output harmonic distortion is 1%. However, signals *1: 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°). at which bypass pin (pin 22) is regarded as H *3:4: Voltage 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. * % Q Xpander Processors MM1326, 1354, 1369 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 Characteristics [MM1326] LIN-ROUT (RIN-LOUT) Frequency characteristic LIN-ROUT (RIN-LOUT) Voltage gain-Frequency LIN-LOUT (RIN-ROUT) Frequency characteristic LIN-LOUT (RIN-ROUT) Voltage gain-Frequency 15.0 Voltage gain Gr (dB) Voltage gain Gr (dB) 10.0 0 -10.0 -20.0 -30.0 -40.0 10.0 100.0 hertz (log) 1.0k 10.0 5.0 0 -5.0 -10.0 10.0k 10.0 100.0k 100.0 hertz (log) 1.0k 10.0k 100.0k Frequency (Hz) Frequency (Hz) [MM1354] LIN-ROUT (RIN-LOUT) Frequency characteristic LIN-ROUT (RIN-LOUT) Voltage gain-Frequency LIN-LOUT (RIN-ROUT) Frequency characteristic LIN-LOUT (RIN-ROUT) Voltage gain-Frequency 15.0 Voltage gain Gr (dB) Voltage gain Gr (dB) 10.0 0 -10.0 -20.0 -30.0 -40.0 10.0 100.0 hertz (log) 1.0k 10.0 5.0 0 -5.0 -10.0 10.0k 10.0 100.0k 100.0 hertz (log) 1.0k 10.0k 100.0k Frequency (Hz) Frequency (Hz) [MM1369] LIN-ROUT (RIN-LOUT) Frequency characteristic LIN-ROUT (RIN-LOUT) Voltage gain-Frequency LIN-LOUT (RIN-ROUT) Frequency characteristic LIN-LOUT (RIN-ROUT) Voltage gain-Frequency 15.0 Voltage gain Gr (dB) Voltage gain Gr (dB) 10.0 0 -10.0 -20.0 -30.0 -40.0 10.0 100.0 hertz (log) 1.0k 10.0 5.0 0 -5.0 -10.0 10.0k Frequency (Hz) 100.0k 10.0 100.0 hertz (log) 1.0k 10.0k Frequency (Hz) 100.0k MITSUMI 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 Speakers with balance control Speakers with balance volume controls OR Balance Centered 5. Listening is best midway between the speakers Volume Volume Left RIght