Datasheet MA12070 (Infineon)

ManufacturerInfineon
Description2x80W ultra power efficient, fully integrated audio amplifier IC with analog input
Pages86
Page1 (MA12070. Description. Features. Applications. Package. www.infineon.com)
File Size1.8 Mb

MA12070. Description. Features. Applications. Package. www.infineon.com

Datasheet MA12070 Infineon

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MA12070
Filterless and High-Efficiency +4V to +26V Audio Amplifier with Analog Input
Description Features
The MA12070 is a super-efficient audio power amplifier • Proprietary Multi-level Switching Technology based on proprietary multi-level switching technology. ◦ 3-level and 5-level modulation It supports a 4-26V supply voltage range, allowing it to ◦ Low EMI emission be used in many different applications. ◦ Filterless amplification Multi-level switching enables very low power loss ◦ Digital Power Management Algorithm during operation. In addition, it allows the amplifier to • High Power Efficiency (PMP4) be used in filterless configurations at full rated power ◦ <160mW Idle power dissipation (26V PVDD, in a wide range of audio products. all channels switching) The MA12070 features an embedded digital power ◦ >80% Efficiency at 2W power (1kHz sine, 8Ω) management scheme. The power management ◦ >91% Efficiency at Full Power (1kHz sine, 8Ω) algorithm dynamically adjusts switching frequency and • Audio Performance (PMP2) modulation to optimize power loss and EMI across the output power range. ◦ >110dB DNR (A-w, rel. to 1% THD+N power level) A 4th order feedback loop ensures low distortion and a ◦ 45µV output integrated noise (A-w) high PSRR. ◦ 0.004% THD+N at high output levels The MA12070 operates from a single power stage • 4th Order Feedback Error Control supply voltage (PVDD) and a +5V system supply voltage ◦ High suppression of supply disturbance (DVDD, AVDD). ◦ HD audio quality Highly flexible output stage configurations are offered, • Supply Voltages: +4V to +26V (PVDD) and +5V ranging from four single-ended outputs to a single (A/DVDD) parallel-BTL output. • Selectable Gain (20dB/26dB) The MA12070 features protection against DC, short- • 2x30W continuous output power (RL = 8Ω at 22V, circuits, over-temperature and under-voltage PMP4, 10% THD+N level, without heatsink) situations. • 2×80W peak output power (26V PVDD, RL = 4Ω, Flexible “Power Mode Profiles” allow the user to utilize 10% THD+N level) the multi-level switching technique for very low power • 2.0, 2.1, 4.0, 1.0 Output Stage Configurations loss or very high audio performance. • Protection Device configuration is controlled through an I2C ◦ Under-voltage-lockout interface as well as dedicated control pins. ◦ Over-temperature warning/error ◦ Short-circuit/overload protection ◦ Power stage pin-to-pin short-circuit
Applications
◦ Error-reporting through serial interface (I2C) ◦ DC protection • Battery Operated Speakers • I2C control (four selectable addresses) • Wireless and Docking Speakers • Heatsink free operation with EPAD-down package • Soundbars
Package
• Multiroom Systems • Home Theater Systems • 64-pin QFN Package with exposed thermal pad (EPAD) and Lead-free Soldering Datasheet Please read the Important Notice and Warnings at the end of this document V 1.0
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page 1 of 86 2018-07-17