IC for Headphone Stereos MM1006 MITSUMI IC for Headphone Stereos Monolithic IC MM1006 Outline This IC was developed for use in headphone stereos, and incorporates the basic functions of a tape player as well as dual preamp, power amp, and motor control circuits. It requires few external components and can be used in a simple circuit configuration. Features 1. Broad operating voltage range of 2.0 to 5.0 V (amp system operates to 1.8 V) 2. Simple circuit configuration 3. Power amp fixed at 28 dB 4. Ripple filter included 5. Provided with pin to turn off preamps 6. With noise from motor driving unit suppressed Package SDIP-22A (MM1006D) SOP-24A (MM1006XF) Absolute Maximum Ratings Item Symbol Ratings Units Operating temperature TOPR -20~+65 °C Storage temperature TSTG -40~+125 °C Power supply current VCC -0.3~+7.5 V Operating voltage Vop 2.0~5.0 V Power consumption Pd 600 (SDIP-22A) 450 (SOP-24A) mW IC for Headphone Stereos MM1006 MITSUMI Electrical Characteristics (Except where noted otherwise,Vcc=3.0V, f=1kHz) Item Symbol Measurement conditions Min. Typ. Max. Units Consumption current ICC VIN=0V 5 Open-circuit gain GVO Vo=-10dBm, RL=∞, f=100Hz 72 Closed-circuit gain GVC Vo=-10dBm 40 42 Maximum output voltage Vom THD=10% 0.30 0.45 Total harmonic distortion ratio THD VOUT=400mW, VOUT=-10dBm 0.05 0.5 % Output noise voltage Vno VIN=0V, Rg=2.2kΩ, BPF=30Hz~20kHz 150 300 µA Crosstalk between channels C·T Rg=2.2kΩ Output voltage with preamp off Vooff VIN=100mVrms 1 Output resistance with preamp off Rooff 10 kΩ Input resistance with preamp off Rioff 10 kΩ 10 mA Preamp unit (Ta=25°C) dB 44 dB V 30 dB -50 * dB Measurement conditions: Preamp off pin: Open *1: Preamp off pin: Connect to V CC Power amp unit (Ta=25°C) Voltage gain Voltage gain difference between channels Gv Gv POUT=5mW 26 VR1, 2=max. 28 30 dB 0 2 dB Maximum output power I Pom1 THD=10%, RL=32Ω 20 Maximum output power II Pom2 THD=10%, RL=16Ω 30 Total harmonic distortion ratio THD POUT=5mW 0.6 2.0 % Output noise voltage Vn Rg=10kΩ 0.25 1.0 mVrms Crosstalk between channels C·T POUT=5mW 40 50 mVrms Ripple rejection RR 100Hz, 100mVp-p 40 50 dB Noise of preamp + power amp Vnto VIN=0V, Rg=2.2kΩ, VR1, 2 : max. 6 9 mVrms Consumption current IMC IM=0mA 3.0 5.0 mA Startup current IMS Reference voltage Vref 28 mW mW Measurement conditions: RL=16Ω Motor speed control unit (Ta=25°C) Reference voltage fluctuation I Vref1 Reference voltage fluctuation II Vref2 Vref3 Reference voltage fluctuation III Current coefficient 500 Between RML-ADJ pins VCC between 2.0 and 5.0V 0.72 *2 mA 0.80 0.87 V 0.05 %/V IM between 25 and 250 mA 0.01 %/mA Ta between -10 and 50°C 0.01 %/°C K 32 38 43 Current coefficient fluctuation I K1 VCC between 2.1 and 5.0 V 0.5 %/V Current coefficient fluctuation II K2 IM between 25 and 250 mA 0.05 %/mA K3 Ta between -10 and 50°C 0.02 %/°C Current coefficient fluctuation III Leakage current on forced off IML Input resistance on forced off Ricon Measurement conditions: IM=100 mA Motor: M25E-5 (Mitsumi model) *2: Voltage fluctuation between motors 200 37 µA kΩ MITSUMI Block Diagram IC for Headphone Stereos MM1006 IC for Headphone Stereos MM1006 MITSUMI Characteristics POUT. 10.0 Power supply output (THD=10%) POUT max.(mW) Total harmonic distortion ratio (%) THD-VOUT VCC=1.8V VCC=2.0V VCC=3.0V 1.0 0.1 ICC-VCC 60 RL=16Ω RL=32Ω 50 12 10 8 6 4 2 40 30 IOC (RL=16Ω) 20 10 0 1.0 2.0 3.0 4.0 5.0 Power supply voltage (V) 0.01 -30 -20 -10 0 Output voltage (dBm) Power amp Crosstalk frequency Ripple rejection-VCC -10 -20 FR=100Hz VR=100mVrms RL=16Ω -30 -40 -50 -60 0 1.0 2.0 3.0 4.0 5.0 Voltage gain- Frequency VCC=3.0V TOTAL GAIN Gain (dB) 60 40 POWER AMP GAIN 20 0 10 100 1k 10k Frequency (Hz) 0 -10 -20 -30 -40 -50 -60 -70 10 VCC=3.0V 100 1k 10k Frequency (Hz) Power supply (V) 80 Crosstalk (dB) Ripple rejection rate (dB) Power amp 100k 100k No-load consumption current (mA) Preamp