The new HAT board (KIT_40W_AMP_HAT_ZW) is compatible with Raspberry Pi Zero W and Raspberry Pi 3 and 4. It leverages Infineon's MERUS multilevel class D amplification enabled by the MERUS MA12070P amplifier, which allows for filter-free amplifier design that does not need to use a filter-coil at the output filter. This reduces significantly the BOM cost and enables PCB area reduction. The board furthermore scores high output power in small form factor up to 40 W instantaneous peak power at 4 Ohm. The solution offers best-in-class efficiency and playback time up to 20 hours with a ~6700 mAh power bank. There is no need for additional power supplies, only a single 5 V/2.5 A USB power supply is required for both the Raspberry Pi and the HAT.
For a quick and easy audio system set-up, the board is compatible with the main Linux distributions such as Raspbian, Volumio, moOde Audio or JustboomPlayer. Dual-channel bridge-tied load (BTL) or single-channel parallel bridge-tied load (PBTL) configurations for Multiroom, TWS, or subwoofer applications are also possible.
The Raspberry Pi audio HAT audio amplifier board is now on stock. More information is available at www.infineon.com/kit-40w-amp-hat-zw.
For More Information on the MERUS Class D multilevel amplifier Read this Article:
For More DIY Project Inspiration, Read the Article by Jens Tybo Jensen.