MA12070
Overview
2x80W ultra power efficient, fully integrated audio amplifier IC with analog input
MA12070 is a highly efficient, fully integrated, digital audio power amplifier IC, based on multi-level switching technology. It supports a 4-26V supply voltage range, allowing it to be used in many different audio applications.
Summary of Features
- Multi-level switching technology with 3-level and 5-level modulation
- 2×80W peak output power (26V PVDD, RL = 4Ω, 10% THD+N level)
- Supply voltages: +4V to +26V (PVDD) and +5V (A/DVDD)
- Suitable for 2.0, 2.1, 4.0, 1.0 output stage configurations
- 4th order feedback error control
- <160mW Idle power dissipation (26V PVDD, all channels switching)
- >80% efficiency at 2W power (1kHz sine, 8Ω)
- >91% efficiency at full Power (1kHz sine, 8Ω)
- Audio performance (PMP2): >110dB SNR (A-w, rel. to 1% THD+N power level)
- 45µV output integrated noise (A-w)
- 0.004% THD+N at high output levels
- I2C control (four selectable addresses)
- Built-in protection: under-voltage-lockout, over-temperature warning/error, short-circuit/overload protection, power stage pin-to-pin short-circuit, error-reporting through serial interface (I2C), DC protection
Benefits
- Unparalleled power efficiency - optimized for music playback with very low power losses and cool operation
- Ultra compact, fully integrated solution – high power output in a small form factor
- HD audio quality & best in class audio performance - high dynamic range, low distortion, low noise
- Low interference / EMI emission - EMC compliance without use of large filter component
- High suppression of supply ripples
- Reduced BoM and associated system cost savings
- Reduction of battery sizes through better power efficiency
- Eliminates complex dynamic rail tracking
- Offers filter-less amplification and eliminates LC filters in many applications
- Heatsink free operation with EPAD-down package
- Flexible solution – highly configurable for tailored performance in individual applications
Potential Applications
- Portable audio - battery operated speakers, on-the-go bluetooth speakers, docking speakers, boom boxes, wearable speakers
- Home audio – multi-room systems, television, soundbars, home theater systems, stand-alone components
- Voice controlled audio
- Pro audio - active monitor speakers, power-over-ethernet (PoE), multi-channel systems
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