Infineon MERUS KIT40WAMPHATZWTOBO1 Quick Start Manual Download Page 2

Product overview and features

Overview

The MERUS

TM

audio amplifier is a hardware at the top (HAT) power amplifier board which 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 along with state-of-the-art power efficiency and

HD audio quality. It is equipped with the MERUS

TM

MA12070P class D audio amplifier. Key features include:

Compatible with Raspberry Pi Zero and Raspberry Pi Zero Wireless

Compatibility with major streaming applications for Raspberry Pi (Raspberry Pi OS, moOde Audio,

Volumio)

No need for external or extra power supplies in addition to the 5 V USB supply

Full hardware control, customization, and error monitoring through Linux Alsamixer

General features and audio performance

Number of audio channels 

2xBTL, 1xPBTL. 

Audio input format 

Digital (I2S)

Minimum power supply requirement (miro USB supply)

[email protected]

DC

Minimum power supply requirement (power bank)

[email protected]

DC 3000 mAH

Output Power/ch (instantaneous peak 

– measured with music)

20 W@4 ohm

THD+N

< 0.014% 1 W  1 KHz RL=4 ohm

Overall system efficiency

66% 1 W/ch 4 ohm

Figure 1.  Overview of the MERUS™ Audio amplifier HAT ZW 

2

2019-12-01

Copyright © Infineon Technologies AG 2020. All rights reserved.

Summary of Contents for MERUS KIT40WAMPHATZWTOBO1

Page 1: ...QUICK START GUIDE Infineon Technologies MERUSTM audio amplifier piHAT ZW with moOde audio player ...

Page 2: ...with major streaming applications for Raspberry Pi Raspberry Pi OS moOde Audio Volumio No need for external or extra power supplies in addition to the 5 V USB supply Full hardware control customization and error monitoring through Linux Alsamixer General features and audio performance Number of audio channels 2xBTL 1xPBTL Audio input format Digital I2S Minimum power supply requirement miro USB sup...

Page 3: ...io amplifier piHAT ZW system diagram MERUSTM MA12070P Speaker output terminals USB 5 V power supply for both MERUSTM amp HAT and Raspberry Pi Boost converter 5 V to 20 V Figure 3 Top board view of MERUSTM audio amplifier piHAT ZW 3 2019 12 01 Copyright Infineon Technologies AG 2020 All rights reserved ...

Page 4: ...HAT to the Raspberry Pi using 2 5M screws and 2 5M 4mm length spacers Secure assembly Secure both boards assembly with 2 5M spacers or nuts Figure 4 Assembly procedure of the Raspberry Pi piHAT Figure 5 Completed assembly of the Raspberry Pi piHAT 4 2019 12 01 Copyright Infineon Technologies AG 2020 All rights reserved ...

Page 5: ...cial site Download balena etcher or any other SD card image burner from this link and open it Insert your SD card in the windows linux or macOS host machine and flash the downloaded moOde audio image file into the card Figure 6 Using balena etcher to burn the SD card 5 2019 12 01 Copyright Infineon Technologies AG 2020 All rights reserved ...

Page 6: ...to the Moode network and then type http moode local into your web browser to access the configuration GUI The password is moodeaudio Press on the m local menu at the top right corner menu and then go to configure Figure 7 Assembly procedure of the Raspberry Pi HAT Figure 8 Connecting to moode local Figure 9 Press on the m logo and then go to configuration 6 2019 12 01 Copyright Infineon Technologi...

Page 7: ...nd under Renderers turn the Bluetooth and pairing agent options on and press set in both Then turn on the Airplay option and also press set Finally press EDIT under Airplay and configure it for 44 1 KHz and 32 bit playback Don t forget to press save Figure 10 Moode configuration menu Figure 11 Moode initial configuration Output device Figure 12 Moode initial configuration Bluetooth and airplay v 7...

Page 8: ...rd to Then press SAVE Go to the configuration menu again and press Power Next press RESTART in order to reboot the Raspberry Pi It can take up to two minutes to restart Figure 13 Moode Spotify configuration menu Figure 14 Moode network configuration Figure 15 Moode power menu Important Use an open network to properly communicate with the Raspberry Pi An enterprise or office network will not work d...

Page 9: ...n trough ssh into the Raspberry Pi In host name type moode local Click open and then press yes Then login with pi as user and moodeaudio as password Figure 16 Connecting trough SSH in putty 9 2019 12 01 Copyright Infineon Technologies AG 2020 All rights reserved ...

Page 10: ...r Figure 17 MERUSTM piHAT Alsamixer 15 Turn off and reboot Turn off the Raspberry Pi by disconnecting the power supply Connect the loudspeakers to the terminal blocks and turn on the Raspberry Pi again Figure 19 MERUSTM piHAT terminal blocks for loudspeaker connection 16 Playing via Airplay or Bluetooth Open any Airplay compatible device app such as Spotify and select your device from the list to ...

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