Infineon MERUS Hat ZW with Volumio Скачать руководство пользователя страница 2

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Product overview and features

Overview

The MERUS

Audio amplifier is a Hardware at the Top (HAT) audio 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, state of the art power efficiency

and HD audio quality. It is equipped with the MERUS

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 (Volumio, Justboom Player, Max2play)

›

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

Minimum power supply requirement (power bank)

[email protected]

DC 3000mAH

Output Power/ch (instantaneous peak

– measured with

music)

20W@4ohm

THD+N

< 0.014% 1W 1KHz RL=4ohm

Overall system efficiency

66% 1W/ch 4ohm

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

December 2019

Содержание MERUS Hat ZW with Volumio

Страница 1: ...QUICK START GUIDE Infineon Technologies MERUSTM Audio amplifier Hat ZW with Volumio ...

Страница 2: ...ty with major streaming applications for Raspberry Pi Volumio Justboom Player Max2play No need for external or extra power supplies in addition to the 5V 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 supp...

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

Страница 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 HAT Figure 5 Completed assembly of the Raspberry Pi HAT 4 December 2019 Copyright Infineon Technologies AG 2019 All rights reserved ...

Страница 5: ...MERUSTM Audio amplifier HAT 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 burn the downloaded Volumio image file into the card Figure 6 Using balena etcher to burn the SD card 5 December 2019 Copyright Infineon Technologies AG 2019 All rights reserved ...

Страница 6: ... web browser to access the configuration screen Password is volumio2 Go through the initial configuration menu and follow the instructions in the Volumio GUI to finish your configuration This menu will appear automatically the first time you boot the Raspberry Pi Figure 7 Assembly procedure of the Raspberry Pi HAT Figure 8 Assembly procedure of the Raspberry Pi HAT Figure 9 Volumio initial configu...

Страница 7: ...ons select snd_rpi_merus_amp as output device Continue to the network setting and select the network you want to connect the Raspberry Pi to Optionally configure the music and finish the initial configuration Figure 10 Volumio initial configuration Language and name Figure 11 Volumio initial configuration Output device Figure 12 Volumio initial configuration Network 7 December 2019 Copyright Infin...

Страница 8: ...e options select Software as Mixer type to allow the protection mechanisms of the HAT to work properly Press save In the Audio resampling section turn on the audio resampling option Select 24 as target bit depth native as target sample rate Press save Figure 13 Volumio settings menu Playback options Figure 14 Volumio settings menu Volume options Figure 15 Volumio settings menu Audio resampling 8 D...

Страница 9: ...tput warning or message after enabling the SSH option Download putty and login trough ssh into the Raspberry Pi with the Raspberry Pi address in the host name address Click open and then yes Then login with volumio as user and volumio as password Figure 16 Enable SSH in volumio local dev Figure 17 Connecting trough SSH in putty 9 December 2019 Copyright Infineon Technologies AG 2019 All rights res...

Страница 10: ...to go through the user s guide section where this topic is covered to correctly configure the limiter threshold level Press escape to exit the mixer Figure 18 MERUSTM HAT Alsamixer 16 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 HAT terminal blocks for loudspeaker...

Страница 11: ...adio stations and press play Be careful with the volume the first time you play Figure 20 Volumio GUI s main screen playback 18 Playing audio with Airplay Open any Airplay compatible device app such as Spotify and select your device from the list to play music from the HAT Figure 21 Selecting Volumio device on Spotify with Airplay 11 December 2019 Copyright Infineon Technologies AG 2019 All rights...

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