Q Xpander Processors MM1434 MITSUMI Q Xpander Processors Monolithic IC MM1434 Outline From ordinary stereo signal input, each of the sound sources is expanded spatially to reproduce sound with a sense of immediacy. Algorithms developed by Q Sound are faithfully implemented in an IC produced by Mitsumi. Features 1. Sound spreading is easily modified using an external VR. 2. Few external components required through use of active filters based on Mitsumi's bipolar technology. 3. Low cost achieved through improvements from previous model (MM1354) to VA. Package SOP-16A (MM1434XFBE) Applications Sound enhancement processor. Pin Assignment 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 SOP-16A Block Diagram 1 RIN 9 LOUT 2 VREF 10 DET 3 S/Q 11 QF4 4 FC 12 QF3 5 SPC 13 QF2 6 QIN 14 QF1 7 ROUT 15 LIN 8 GND 16 VCC Q Xpander Processors MM1434 MITSUMI Pin Description Pin No. Pin name Functions 1 RIN Input pin R 15 LIN Input pin L 2 VREF 3 S/Q DC reference voltage pin STEREO/Q Sound Switch pin 4 FC Filter frequency control pin 5 SPC Spread control pin Equivalent circuit diagram Q Xpander Processors MM1434 MITSUMI Pin No. Pin name Functions 6 QIN Q Sound input pin 7 ROUT Output pin R 9 LOUT Output pin L 8 GND GND pin 10 DET VCC off detect pin 11 QF4 Filter pin Qf4 12 QF3 Filter pin Qf3 13 QF2 Filter pin Qf2 14 QF1 Filter pin Qf1 16 VCC Supply voltage pin Equivalent circuit diagram Q Xpander Processors MM1434 MITSUMI Absolute Maximum Ratings (Except where noted otherwise, Ta=25°C) Item Symbol Ratings Unit Storage temperature TSTG -40~+125 °C Operating temperature TOPR -20~+75 °C Power supply voltage VCC max. 12 V Input voltage VIN max. 0 <= VIN <= VCC V Output current Io max. 10 mA Allowable loss Pd 350 mW Recommended Operating Conditions Item Symbol Ratings Unit Operating temperature TOPR -20~+75 °C Operating voltage Q Xpander(1) Vopq1 3.8~9.0 R1=18kΩ*1 V Operating voltage Q Xpander(2) Vopq2 5.0~9.0 R1=22kΩ*1 V Operating voltage bypass Vopb 3.0~9.0 V Note 1 : When R1 is chosen 22kΩ, the operating voltage Q Xpander becomes narrower. But the input dynamic range becomes wider. The character is illustrated in the typical performance characteristics (3). Electrical Characteristics (Except where noted otherwise VCC=8V, Ta=25°C, Vbyp=5V, SW1, 2 ,3 ,4 : A R1=22kΩ) Item Consumption current Voltage gain Q Xpander 1 Voltage gain Q Xpander 2 Voltage gain Q Xpander 3 Voltage gain Q Xpander 4 Symbol ICC Gqx1 Gqx2 Gqx3 Gqx4 Voltage gain bypass 1 Gby1 Voltage gain bypass 2 Gby2 Input voltage (1) VIN1 Input voltage (2) VIN2 Input voltage (3) VIN3 Input voltage (4) Total harmonic distortion Q Xpander VIN4 THDqx Total harmonic distortion bypass THDby Output noise voltage Q Xpander Vnoqx Output noise voltage bypass Vnoby R-L channel balance Cb Measurement conditions Min. Typ. Max. Unit 16 22 mA 7.6 9.1 10.6 dB 4.1 5.6 7.1 dB 7.6 9.1 10.6 dB 4.1 5.6 7.1 dB SG1 : 0.5Vrms, 1kHz SW3 : B TP1 SG1 : 0.5Vrms, 1kHz SW3 : B TP2 SG2 : 0.5Vrms, 1kHz SW4 : B TP2 SG2 : 0.5Vrms, 1kHz SW4 : B TP1 SG1 : 0.5Vrms, 1kHz Vbyp=0V -1 SW3 : B TP1 SG2 : 0.5Vrms, 1kHz Vbyp=0V -1 SW4 : B TP2 VCC=8V *1 SW3, 4 : B TP1, TP2 0.5 VCC=3.8V R1=18kΩ *1 0.15 SW3, 4 : B TP1, TP2 VCC=3V R1=18kΩ Vbyp=0V *1 0.3 SW3, 4 : B TP1, TP2 VCC=8V *2 SW3, 4 : B TP1, TP2 0.25 (a) SG1 : 0.5Vrms, 1kHz SW3 : B (b) SG2 : 0.5Vrms, 1kHz SW4 : B TP1, TP2 (a) SG1 : 0.5Vrms, 1kHz SW3 : B (b) SG2 : 0.5Vrms, 1kHz SW4 : B Vbyp=0V TP1, TP2 BW=20~20kHz, A Curve TP1, TP2 BW=20~20kHz, A Curve Vbyp=0V TP1, TP2 SG1, SG2 : 0.5Vrms, 1kHz -1.0 Vbyp=0V SW3, 4 : B TP1, TP2 0 1 dB 0 1 dB 0.7 Vrms 0.25 Vrms 0.45 Vrms 0.35 Vrms 0.4 1.0 % 0.03 0.3 % 75 150 µVrms 15 60 µVrms 0 1.0 dB Q Xpander Processors MM1434 MITSUMI Item Bypass pin voltage (H) Bypass pin voltage (L) Bypass pin current (H) Bypass pin current (L) Recommended power supply off time DET terminal voltage (H) DET terminal voltage (L) VREF terminal current Input resistance Power supply ripple rejection ratio Q Xpander Power supply ripple rejection ratio bypass Symbol Vbyph Vbypl Ibyph Ibypl TvOFF Vdeth Vdetl Iref RIN PSRRqx PSRRby Crosstalk (1) Ct1 Crosstalk (2) Ct2 Measurement conditions *3 *4 Vbyp=5V *5 TP5 Vbyp=0V *6 TP5 *7 *7 TP6 *7 TP6 SW2 : B TP3, TP4 SG3 : 50mVrms, 100Hz SW1 : B *8 TP1, TP2 SG3 : 50mVrms, 100Hz SW1 : B *8 Vbyp=0V TP1, TP2 SG1 : 0.5Vrms, 1kHz SW3 : B *9 Vbyp=0V TP1, TP2 SG2 : 0.5Vrms, 1kHz SW4 : B *10 Vbyp=0V TP1, TP2 Min. Typ. Max. Unit 2.1 V 0.7 V 350 µA -10 µA 0.1 1.0 S 7.5 V 0.7 V -2.2 -0.6 1 µA 21 30 39 kΩ -40 -30 dB -55 -40 dB -85 -70 dB -85 -70 dB Note 1 : f=1kHz, It is input voltage that THD of output voltage is 1%. Then the signals that are inputted in SG1 and SG2 are in phase. The difference of phase between the left input signal and the right one is 0°. Note 2 : f=1kHz, It is input voltage that THD of output voltage is 1%. The difference of phase between the left input signal and the right one is 180°. Note 3 : High-Level input voltage of BYP terminal (3pin) (Q Xpander MODE) Note 4 : Low-Level input voltage of BYP terminal (3pin) (bypass MODE) Note 5 : Input current of BYP terminal (3pin) (Vbyp=5V) Note 6 : Input current of BYP terminal (3pin) (Vbyp=0v) Note 7 : The mute signal which switches off the power supply of a power amplifier that is connected with MM1434 appears in the 10 terminal. When the power supply of MM1434 is switched off, the pop noise occur. We recommend muting the pop noise. The way is that the power supply of MM1434 is switched off after the power supply of the follow power amplifier is switched off. Tvoff VCC=8V VCC waveform (Pin 16) 0V Vdeth DET pin waveform (Pin 10) VdetI Note 8 : We recommend using the regulator for the power supply which occurs the ripple. Note 9 : When the signal is input in SG1, it is the ratio of 7pin output voltage to 9pin output voltage. Note 10 : When the signal is input in SG2, it is the ratio of 9pin output voltage to 7pin output voltage. MITSUMI Measuring Circuit Note 1 : At VCC = 3.8V or 3V, R1 = 18kΩ At VCC = 8V, R1 = 22kΩ Note 2 : Capacitor Tolerance ±5% Note 3 : Resistor Tolerance ±1% Q Xpander Processors MM1434 MITSUMI Q Xpander Processors MM1434 Application Circuit Note 1 : Please see recommended operating conditions Note 1). Note 2 : Capacitor tolerance ±5% Note 3 : Resistor tolerance ±1% Note 4 : The Q Xpander effect (the spread effect) is adjusted with VR. Note 5 : We recommend using the regulator for the power supply which occurs the ripple. Note 6 : The mute signal which switches off the power supply of a power amplifier that is connected with MM1434 appears in the 10 terminal. Note 7 : When the power supply is switched on, the pop noise occur. We recommend muting the pop noise by the power amplifier that is connected with MM1434. Q Xpander Processors MM1434 MITSUMI Characteristics (1) LIN-ROUT (RIN-LOUT) Frequency (Q Xpander) LIN-ROUT (RIN-LOUT) Voitage gain-Frequency (Q Xpander) 15.0 10.0 Voltage Gain (dB) 5.0 0 -5.0 -10.0 -15.0 -20.0 -25.0 -30.0 -35.0 10.0 100.0 1.0k 10.0k 100.0k Frequency (HZ) (2) LIN-LOUT (RIN-ROUT) Frequency (Q Xpander) LIN-LOUT (RIN-ROUT) Voltage gain-Frequency (Q Xpander) 14.0 12.0 Voltage Gain (dB) 10.0 8.0 6.0 4.0 2.0 0 -2.0 -4.0 -6.0 -8.0 -10.0 10.0 100.0 1.0k 10.0k 100.0k Frequency (HZ) Input voltage amplitude VIN (Vrms) (3) Input voltage amplitude-Power supply voltage (Q Xpander) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 R1=22k R1=18k 5 10 Power supply voltage VCC (V) Note : It is input voltage that THD of output voltage is 1%. (f=1kHz)