Infineon Technologies MA2304DNS/PNS MERUS™ Multilevel Switching Amps
Infineon Technologies MA2304DNS/PNS MERUS™ Multilevel Switching Audio Amplifiers are 2W × 37W audio amplifiers that offer the MERUS multilevel switching amplifier technology, which promotes unmatched power efficiency at both low and high output power. The device's multilevel switching reduces EMC requirements and provides inductor-less applications at a lower cost. The MA2304DNS/PNS features a high-order internal feedback loop that ensures low THD and high PSRR for superior audio performance.
The Infineon MA2304DN amplifier integrates a highly configurable DSP used to correct imperfections in real speaker applications with, e.g., equalization, limiting, and more.
The MA2304PN offers a more straightforward volume control and limiter for systems where an application/connectivity processor does the audio processing.
The excellent ultra-low idle power consumption makes the MA2304DNS/PNS ideal for battery-powered speaker applications with extended battery life and reduced battery cell cost. In mains-powered multi-channel applications, the reduced and scalable EMI performance enables otherwise impossible industrial designs without requiring a heatsink.
Features
- 6mm x 6mm QFN
- Ultralow idle power (52mW)
- MA2305DNS provides an Integrated DSP
- MA2304PNS features a digital volume control and limiter
- 5 Level MERUS™ multilevel switching technology
- 50mW (LPC mode) Ultra-low idle power consumption
- >80%, 2W × 1W, 8Ω High efficiency at low output power
- High-fidelity audio performance
- BTL rated output of 2 × 37W, 18V, 4Ω, 10% THD
- PBTL rated output of 1 × 74W, 18V, 2Ω, 10% THD
- Dynamic range of 105dB
- Output noise of 55μVrms
- THD+N of <0.03%, 1W, 1kHz
Applications
- Battery powered speakers
- BLUETOOTH®/wireless/smart speakers and soundbars
- Conference speakers
- Multichannel/multi‑room audio systems
Additional Resources
Associated Boards
Infineon Technologies MERUS™ EVAL_AUDIO_MA12070P_B Evaluation Board
Features the MA12070 MERUS™ class D amplifier IC.
Infineon Technologies EVAL_AUDIO_MA2304DNS Evaluation Board
Allows users to evaluate the MERUS™ multilevel MA2304DNS stereo class D amplifier.
Infineon Technologies EVAL_AUDIO_MA2304DNS_B Evaluation Board
An upgraded MERUS™ multilevel class D amplifier MA2304DNS evaluation board with a PSoC™ controller.
Infineon Technologies EVAL_AUDIO_MA2304PNS Evaluation Board
Allows users to evaluate the MERUS™ multilevel MA2304PNS stereo class D amplifier.
Typical Application
Efficiency vs output power
Functional Application Block Diagram
Related Solutions
Infineon Technologies MERUS™ Audio Design Tools
A portfolio of products used for MERUS Class D Audio Amplifier IC solutions.