1 MERUS™
audio amp HAT overview
The MERUS
TM
audio amp is a hardware at the top (HAT) audio power amplifier board that brings the Infineon
proprietary multilevel technology to Raspberry Pi users and makers. It is intended for loudspeaker building and
wireless music streaming with minimum size and consumption, state-of-the-art power efficiency and HD audio
quality. The MERUS
TM
audio amp is equipped with the MA12070P class D multilevel amplifier, which can
provide up to 40 W instantaneous peak power from the official Raspberry Pi supply, and up to 48 kHz/24 bit
music playback. Furthermore, there is no need for extra power supplies, as the MERUS
TM
audio amp is powered
directly from the same supply as the Raspberry Pi Zero W. It is compatible with the most popular audio
streaming applications for Raspberry Pi, such as Volumio, Max2Play and JustBoom, and it can be also used in
Raspbian as an AirPlay client or Bluetooth audio receiver.
1.1 Key features
The MERUS
TM
audio amp HAT for Raspberry Pi Zero W has the following features:
• Equipped with MERUS
TM
MA12070P proprietary multilevel amplifier
• Compatible with both Raspberry Pi Zero and Raspberry Pi Zero W
• Compatible with major streaming applications for Raspberry Pi (Volumio, JustBoom, Max2Play)
• Power input: 5 V/2.5 A (sourced from the same single supply as the Raspberry Pi)
• No need for external or extra power supplies
• Up to 40 W instantaneous peak output power with the Raspberry Pi official 5 V/2.5 A supply
• Up to 48 kHz of sample rate and 24 bits of music playback
• THD + N: 0.077 percent at 7 W/4 Ω/1 kHz
• Full hardware control, customization and error monitoring through Linux alsamixer
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General