MA12070XUMA1

Filterless and high-efficiency +4V to +26V audio amplifier with analogue input. Multi-level switching enables very low power loss during operation. In addition, it allows the amplifier to be used in filterless configurations at full rated power in a wide range of audio products. It features an embedded digital power management scheme. The power management algorithm dynamically adjusts switching frequency and modulation to optimize power loss and EMI across the output power range. Typical applications include battery operated speakers, wireless and docking speakers, soundbars, multiroom systems and home theatre systems.

• Proprietary multi-level switching technology (3 level and 5 level modulation)
• Digital power management algorithm, high power efficiency (PMP4)
• Audio Performance (PMP2) (45µV O/P integrated noise (A-w), 0.004% THD+N at high O/P levels)
• 4th order feedback error control (high suppression of supply disturbance, HD audio quality)
• Selectable gain (20dB/26dB)
• 2 x 30W continuous output power, 2 x 80W peak output power
• Under voltage lockout, over-temperature warning/error and DC protection
• Short-circuit/overload protection
• Power stage pin-to-pin short-circuit protection
• Error-reporting through serial interface (I2C)