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Infineon


Integrated Class D Audio Amplifier ICs

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The MA2304DNS is a 2x37 W audio amplifier with integrated audio DSP and I2S/TDM audio interface. It features the MERUS™ multilevel switching amplifier technology enabling unmatched power efficiency at both low and high output power. Multilevel switching also relaxes EMI and enables inductor‑less applications with lower cost and no compromise in audio performance or efficiency. A high order internal feedback loop ensures low THD for excellent audio performance. The integrated DSP offers a configurable processing flow and can be used to correct and tune real speaker applications with e.g. equalization, limiting and more.The ultra‑low idle power consumption is at least five times lower than the traditional class D audio amplifiers in the market, making MA2304DNS ideal for battery powered speaker applications with extended battery life and/or reduced battery cell cost. In mains‑powered multichannel applications, the reduced and scalable EMI performance, enables otherwise impossible industrial designs, without the necessity for a heatsink or a traditional LC filter.
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The MA2304PNS is a 2x37 W audio amplifier with integrated audio DSP and I2S/TDM audio interface. It features the MERUS™ multilevel switching amplifier technology enabling unmatched power efficiency at both low and high output power. Multilevel switching also relaxes EMI and enables inductor‑less applications with lower cost and no compromise in audio performance or efficiency. A high order internal feedback loop ensures low THD for excellent audio performance.The ultra‑low idle power consumption is at least five times lower than the traditional class D audio amplifiers in the market, making MA2304PNS ideal for battery powered speaker applications with extended battery life and/or reduced battery cell cost. In mains‑powered multichannel applications, the reduced and scalable EMI performance, enables otherwise impossible industrial designs, without the necessity for a heatsink or a traditional LC filter.
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The MA2306DNS is a 2x63 W audio amplifier with I2S/TDM audio interface. It features the MERUS™ multilevel switching amplifier technology. Multilevel switching relaxes EMI and enables inductor‑less applications with lower cost and no compromise in audio performance or efficiency, battery life and reduced battery cell cost. The integrated DSP in the MA2306DNS is highly configurable.
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The MA2306PNS is a 2x63 W audio amplifier with I2S/TDM audio interface. It features the MERUS™ multilevel switching amplifier technology. Multilevel switching relaxes EMI and enables inductor‑less applications with lower cost and no compromise in audio performance or efficiency, battery life and reduced battery cell cost. The 2306PNS offers a simpler volume control and a peak limiter.
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The MA5302MS is optimized for 1-2 Ω speaker impedances. It offers the same or higher output power than monolithic alternatives without heatsink and 50% less footprint. This MCM solution integrates 2 channel PWM controller, high voltage gate driver, and 4 low RDS(ON) MOSFETs. It includes standard Class D protection features for reliable operation over various environmental conditions. MA5302MS has the same 7x7 mm PG- IQFN-42 package as MA5332MS.
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The MA5342MS is optimized for 4-16 Ω speaker impedances. It offers the same or higher output power than monolithic alternatives without heatsink and 50% less footprint. This MCM solution integrates 2 channel PWM controller, high voltage gate driver, and 4 low RDS(ON) MOSFETs. It includes standard class D protection features for reliable operation over various environmental conditions. MA5342MS has the same 7x7 mm PG- IQFN-42 package as MA5332MS.
Models Available