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PolyVection embedded audio solutions

PlainDAC RASPBERRY PI SETUP GUIDE

Audiophile digital-to-analog converter module with I2S input Document revision 1.0

August 2016

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PolyVection embedded audio solutions

Table of Contents

1 Revision History....................................................................................................... 2 2 Using PlainDAC with a Raspberry Pi ................................................................... 3 3 Connection via Ribbon Cable ............................................................................ 3 4 Connection via Jumper Wires ............................................................................. 4 5 Software Configuration ........................................................................................ 4 6 Regulatory Information ......................................................................................... 5 7 Safety Warnings ..................................................................................................... 5 8 Disclaimers .............................................................................................................. 5

1 Revision History August 2016 / Initial release

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2 Using PlainDAC with a Raspberry Pi

PlainDAC features a 40 pin ribbon cable connector as well as through hole access to all the important signals. Both ways can be easily used to connect it to a Raspberry Pi single-board-computer. Drivers are already included in the standard Raspberry Linux kernel and just need very basic configuration.

3 Connection via ribbon cable To connect PlainDAC to your Rapberry the very clean but also flexible way just use our special RPi Adapter. It comes with several screws, spacers and washers as well as a 100 mm FPC ribbon cable and a through hole connector that needs to be soldered in by you.

This is what the adapter kit contains.

Take two spacers and mount it next to the GPIO connector of your Raspberry.

Stack on the large 40 pin connector with about one millimeter space at the bottom.

Place the adapter PCB on top. Watch out for the correct position as shown below.

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4 Connection via jumper wires For prototyping purpose you can also connect your PlainDAC to the Raspberry Pi using standard jumper wires. In this case you just need to populate the 10 pin / 2 row connector on PlainDAC and connect the wires.

5 Software configuration Open up an SSH connection to your Raspberry. Open the /boot/config.txt file for editing. Append the line dtoverlay=iqaudio-dacplus at the bottom. Now do a reboot and everything should be up and running.

Take your soldering iron and solder all the 40 through hole pins. A good practice is to tighten the two nuts to keep the PCB in place.

Finally insert the ribbon cable in the adapter and also in your PlainDAC. Mount PlainDAC and the Raspberry on a solid surface or case.

Solder in the connector. Refer to the PlainDAC datasheet the PCB backside for the pinout.

Connect the wires to the GPIO header or your Raspberry.

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6 Safety Warnings

User must read and apply the user guide / datasheet and other available documentation provided by PolyVection regarding the PlainDAC prior to handling or using PlainDAC, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages. PlainDAC is intended to be used solely by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, subsystems. Use PlainDAC in laboratory test environment only. Never leave it unattended while in use. Never operate PlainDAC outside of its recommended operating specifications otherwise it may cause personal injury or death or property damage.

7 Regulatory information

PlainDAC generates, uses and can radiate radio frequency energy and has not been tested for compliance with any regulatory requirements (e.g. CE, FCC). PlainDAC is not sold as a finished product and may not be resold or otherwise marked unless all required regulatory authorizations are first obtained.

8 Disclaimers

TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, POLYVECTION, AND ITS SUPPLIERS, SHALL NOT BE LIABLE TO YOU, OR ANY THIRD PARTY, FOR ANY INDIRECT, EXEMPLARY, SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND ARISING IN ANY WAY OUT OF USE OF THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, LOSS OF PROFITS, REVENUES OR DATA, OR COSTS OF REPLACEMENT GOODS, EVEN IF POLYVECTION HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF ANY LIMITED REMEDY OF ITS ESSENTIAL PURPOSE. TO THE MAXIMUM EXTENT ALLOWED UNDER APPLICABLE LAW, EXCEPT FOR THE EXPRESS LIMITED WARRANTIES SET FORTH ABOVE, PRODUCTS ARE PROVIDED “AS IS” AND “AS AVAILABLE” AND POLYVECTION AND ITS SUPPLIERS MAKE NO WARRANTIES UNDER THIS AGREEMENT, EXPRESS, IMPLIED, OR STATUTORY, BY OPERATION OF LAW OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTIES ARISING OUT OF COURSE OF PERFORMANCE, COURSE OF DEALING OR USAGE OF TRADE UNDER OR IN CONNECTION WITH THE PRODUCTS. POLYVECTION DOES NOT WARRANT THAT THE PRODUCTS AND CONTENT WILL OPERATE ERROR-FREE, UNINTERRUPTED, OR THAT THEY WILL BE SECURE OR VIRUS-FREE. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY POLYVECTION, ITS AGENTS OR OTHER REPRESENTATIVES OR EMPLOYEES SHALL IN ANY WAY INCREASE THE SCOPE OF POLYVECTION’S WARRANTIES UNDER THIS AGREEMENT. WITHOUT LIMITING THE GENERALITY OF THE FORGOING, POLYVECTION AND ITS SUPPLIERS DO NOT MAKE, AND EXPRESSLY DISCLAIM, ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, RELATED TO ANY THIRD PARTY INTELLECTUAL PROPERTY, TECHNOLOGY OR INFORMATION PROVIDED AS PART OF THE PRODUCT OR DOCUMENTATION.

WE MAY REVISE THIS DATASHEET AT ANY TIME. ALWAYS MAKE SURE YOU USE THE LATEST ONE.

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