MA12070 Audio Amplifier Board 2*80W stereo class D Amplificador
Infineon MA12070 high-end digital power amplifier product.
Main product features:
1. Multi-level switching technology with 3-level and 5-level modulation makes the solution unparalleled in power consumption and energy efficiency-optimized for power consumption during music playback, making it extremely low energy consumption.
2. 2×80W peak output power (26V PVDD, RL = 4Ω, 10% THD+N level)
3. Flexible realization of 2.0 (2*80W), 2.1 (1*80W+2*40W), 4.0 (4*40W), 1.0 (1*160W) channel output level configuration through the on-board DIP switch.
4. The fourth-order feedback error control can provide better gain and suppress errors better than the traditional second-order loop, thereby ensuring extremely low signal distortion and excellent audio performance, even if the power supply is not ideal (noise or ripple) Wave), still ensuring low distortion, high sound quality and stability and reliability.
5. <160mW idle power dissipation (26V PVDD, all channels are switched); when the power is 2W, the efficiency is >80% (1kHz sine wave, 8Ω); when the power is full power, the efficiency is >91% (1kHz sine wave, 8Ω).
6. Audio performance (PMP2): >110dB SNR (A-w, relative to 1% THD+N power level), without the need for complex dynamic follow-up power supply design (conventional audio power design solutions that improve energy efficiency).
7. 45μV output integrated noise (A-w), no low-pass filter (LPF) is required in most applications.
8. When the output level is high, THD+N is 0.004%.
9. I2C control (four optional addresses on the dial switch on the board), can be connected to the MCU to control the working mode of the chip, balance performance and power consumption, and can be customized in various applications.
10. Built-in protection: undervoltage lockout, overheat warning/error, short circuit/overload protection, power stage pin to pin short circuit, e