Merus Audio

MERUS™ class D audio amplifier ICs, multi-chip modules and discrete MOSFET/HEMT driver ICs

A traditional class D amplifier is a switching amplifier, usually consisting of two power MOSFETs with pulse-width-modulation (PWM) signal. An LC filter is needed for output levels >20 W which increases both size and costs.

 

With an increasing number of audio channels per product, traditional class D power amplifiers face design challenges in compact applications: low power efficiency, excessive heat generation (even at moderate listening levels), and the need for bulky, costly filters. Infineon’s multilevel class D audio amplifier circuit technology – the world’s first of its kind – has made it possible to improve power consumption while reducing electromagnetic interference and out-of-band noise. Manufacturing costs can also be reduced by eliminating or minimizing the use of filters, helping to save design space.

 

With revolutionary multilevel class D amplifier ICs, Infineon leads in power efficiency and power density. Cooler, smaller, and lighter class D audio amplifiers for great sounding products.

Featured Products

ProductDescriptionAudio Input TypeSpeaker ChannelsSupply Voltage (V)

Output Power

(W /channel) [W]

Package
MA5342MSIntegrated 200W - 2 channel analog input Class-D amplifierAnalog2 200QFN 42 pin
MA5332MSIntegrated 200W - 2 channel analog input Class-D amplifierAnalog2 200QFN 42 pin
MA5302MSIntegrated 200W - 2 channel analog input Class-D amplifierAnalog2 200QFN 42 pin
IRS2461S400 V single channel Class D audio amplifierAnalog1+/-200 20-lead SOIC
IRS2452AMDriver for 500W applications - 2 channel analog input Class-D audio amplifierAnalog2+/-200 MLPQ 32 pins
IRS20957SPBFDriver for 500W applications - 1 channel PWM input Class-D audio amplifierPWM1+/-100 SOIC 16 pins
IRS2093MPBFDriver for 300W applications- 4 channel analog input Class-D audio amplifierAnalog4+/-100 MLPQ 48 pins
IRS2092SPBFDriver for 500W applications - 1 channel analog input Class-D audio amplifierAnalog1+/-100 SOIC 16 pins
IRS2052MDriver for 300W applications  - 2 channel analog input Class-D audio amplifier Analog2+/-100 MLPQ 48 pins
IR4322MIntegrated 100W - 2 channel analog input Class-D amplifierAnalog2+/-25 or 50100QFN 44 pins
IR4321MIntegrated 90W - 1 channel analog input Class-D amplifierAnalog1+/-25 or 5090PQFN 22 pins
IR4302MIntegrated 130W - 2 channel analog input Class-D amplifierAnalog2+/-34 or 68130QFN 44 pins
IR4301MIntegrated 160W - 1 channel analog input Class-D amplifierAnalog1+/-34 or 68160PQFN 22 pins
IRS20965SDriver for 500W applications - 1 channel PWM input Class-D audio amplifierPWM1+/-100 SOIC 16 pins
MA2306PNS2x63 W, 13.5-26 V, ultra-low idle power, inductor-less, with volume control and peak limiterI2S/TDM2  QFN 40 pins
MA2306DNS2x63 W, 13.5-26 V, ultra-low idle power, inductor-less, with integrated DSPI2S/TDM2  QFN 40 pins
MA2304PNS2x37 W, 10-20 V, ultra-low idle power, inductor-less operation, with volume control and peak limiterI2S � TDM2xBTL/1xPBTL2037QFN 40 pins
MA2304DNS2x37 W, 10-20 V, ultra-low idle power, inductor-less operation, integrated DSPI2S � TDM2xBTL/1xPBTL2037QFN 40 pins
MA12070PIntegrated 80W - 2xBTL/4xSE channel digital input multi-level class-D amplifierDigital/I2S2xBTL/4xSE2680QFN 64 pins
MA12070Integrated 80W - 2xBTL/4xSE channel analog input multi-level class-D amplifierAnalog2xBTL/4xSE2680QFN 64 pins
MA12040PIntegrated 40W - 2xBTL/4xSE channel digital input multi-level class-D amplifierDigital/I2S2xBTL/4xSE1840QFN 64 pins
MA12040Integrated 40W - 2xBTL/4xSE channel analog input multi-level class-D amplifierAnalog2xBTL/4xSE1840QFN 64 pins
IR4312MIntegrated 35W - 2 channel analog input Class-D amplifierAnalog2+/-16 or 3235QFN 44 pins
IR4311MIntegrated 35W - 1 channel analog input Class-D amplifierAnalog1+/-15 or 3035PQFN 22 pins

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