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| MITSUMI Audio Power Amplifier MM3111 Audio Power Amplifier Monolithic IC MM3111 Outline April 16, 2004 This IC is an audio power amp that can operate at low voltage. Operating supply voltage supports 3V and 5V power amp, making it ideal for applications such as mobile phones and other portable communication devices. It is equipped with the capability to provide continuous supply of 1W (Ave) output against 8 load from a 5V single power supply with 2% high harmonic distortion (THD+N). MM3111 does not require an output coupling capacitor, so that applications can be configured with the minimum number of external parts. It also includes a shutdown function and can operate with low power consumption when a mute signal is inputted into the SHUTDOWN pin. It also includes a thermal runaway protection function (thermal shutdown) to allow a gain to be set with an external resistor. Features 1. Operating supply voltage 2. Operating ambient temperature 3. Current consumption (no-load) 4. Current consumption during Power Save 5. Maximum output power 1.8~5.5V (supports 3V and 5V) -40~85C 3.5mA (VDD=3V) typ. 2.0A max. 1.0W (VDD=5V, THD=2%) 0.31W (VDD=3V, THD=1%) 66dB (f=1kHz, VDD=5V) 6. PSRR 7. No output coupling capacitor required 8. SHUTDOWN pin for both Power Save and mute 9. Thermal shutdown function 10. Mounted in a small package VSOP-8B (0.65 mm pitch) Package VSOP-8B Pin Assignment 1 2 3 4 5 6 7 8 SHUTDOWN BIAS IN (+) IN (-) OUT (+) VDD GND OUT (-) 8 7 6 5 1 2 3 4 VSOP-8B (TOP VIEW) MITSUMI Audio Power Amplifier MM3111 Block Diagram 20k 6 VDD 20k 4 0.33F IN (-) 20k 20k 3 IN (+) 8 OUT (-) OUT (+) 5 8 2 1F BIAS 7 GND BIAS SHUTDOWN 1 MITSUMI Audio Power Amplifier MM3111 Absolute Maximum Ratings (Ta=25C) Item Storage temperature Input voltage Supply voltage Allowable loss Symbol TaSTG VIN max. VDD Pd Ratings -65~+150 -0.3~VDD+0.3 6 0.34 (alone) Units C V V W Recommended Operating Conditions Item Symbol VDD TOPR Ratings 2.0~5.5 Supply voltage 1.8=Movement guarantee Operating temperature -40~+85 C V Units Electrical Characteristics (Except where noted otherwise, RL=8, f=1kHz) Item When VDD=5V Current consumption 1 Current consumption 2 When power save Maximum output electric power Ripple rejection Output offset voltage THD+N When VDD=3V Current consumption 1 Current consumption 2 When power save Maximum output electric power Ripple rejection Output offset voltage THD+N When VDD=2.6V Current consumption 1 When power save Maximum output electric power THD+N Ripple rejection IDD1 IPS PO THD PSRR VIN=0V, No load SHUTDOWN=0V THD+N=1% HPF=400Hz, LPF=30kHz, PO=0.1W RS=0, VRIPPLE=200mVP-P, CBIAS=1F 0.2 0.08 44 2.6 2 mA A W % dB IDD1 IDD2 IPS PO PSRR VOFF THD HPF=400Hz, LPF=30kHz, PO=0.15W VIN=0V, No load VIN=0V, RL=8 SHUTDOWN=0V THD+N=1% RS=0, VRIPPLE=200mVP-P, CBIAS=1F -50 0.28 0.31 62 0 0.1 50 3.5 4.5 7 9 2 mA mA A W dB mV % IDD1 IDD2 IPS PO PSRR VOFF THD HPF=400Hz, LPF=30kHz, PO=0.4W VIN=0V, No load VIN=0V, RL=8 SHUTDOWN=0V THD+N=2% RS=0, VRIPPLE=200mVP-P, CBIAS=1F -50 0.8 1.0 66 0 0.1 50 4 5 8 10 2 mA mA A W dB mV % Symbol Measurement conditions Min. Typ. Max. Units |
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