https://github.com/islandcontroller/fiberaudio-pm

A Pmod™ Compatible peripheral module featuring a pair of active optical audio transmitter/receivers
https://github.com/islandcontroller/fiberaudio-pm

electronics oshw pcb-layout schematics spdif toslink

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A Pmod™ Compatible peripheral module featuring a pair of active optical audio transmitter/receivers

• Host: GitHub
• URL: https://github.com/islandcontroller/fiberaudio-pm
• Owner: islandcontroller
• License: cern-ohl-p-2.0
• Created: 2024-01-20T01:23:12.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2024-01-26T20:59:26.000Z (over 2 years ago)
• Last Synced: 2025-03-06T03:35:48.944Z (over 1 year ago)
• Topics: electronics, oshw, pcb-layout, schematics, spdif, toslink
• Homepage:
• Size: 2.66 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# fiberaudio-pm 

![Prototyping](https://img.shields.io/badge/status-review-yellow?style=plastic) [![license - CERN-OHL-P-2.0](https://img.shields.io/github/license/islandcontroller/fiberaudio-pm?style=plastic)](LICENSE) [![Upload to AISLER](https://img.shields.io/badge/Upload_to_-AISLER-ff8000?style=plastic)](https://aisler.net/p/new?url=https://raw.githubusercontent.com/islandcontroller/fiberaudio-pm/master/pcb/fiberaudio-pm.kicad_pcb&ref=github)

A *Pmod™ Compatible* peripheral module featuring a pair of active optical audio transmitter/receivers.



  



View [**Schematic**](doc/fiberaudio-pm.pdf) 📄 or [**PCB Preview**](https://htmlpreview.github.io/?https://github.com/islandcontroller/fiberaudio-pm/blob/master/doc/ibom.html) 🌐.

### Key features

* One pair of active optical audio transmitter/receiver modules (JIS F05, e.g. TOSLINK™)

* One *Digilent Pmod™ Compatible* 1x6 pin header

    * Interface Type 1 (GPIO)

* Fully compliant with the [*Digilent Pmod™ Interface Specification*, Version 1.3.1](https://digilent.com/reference/_media/reference/pmod/pmod-interface-specification-1_3_1.pdf)

## Overview

The *Pmod™ Compatible* fiberaudio-pm peripheral module features a pair of active optical audio transmitter/receiver modules, commonly referred to as "optical S/PDIF". The module allows embedded developers to explore optical data transfer technologies using *Digilent Pmod™* ecosystem components, such as FPGA development boards.

## Review Notes (`Rev.2`)

* CE marking requires compliance with [Directive 2015/863 (EU) amending Annex II to Directive 2011/65/EU](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32015L0863) (RoHS)

* WEEE marking not required if the board is classified as a 'component' according to [FAQ on Directive 2012/19/EU](https://ec.europa.eu/environment/pdf/waste/weee/faq.pdf) (WEEE)

  * Removed marking in `Rev.3`

* Heat-sinking effect of GND pad thermal spokes is excessive at 400µm width

  * Adjusted to 250µm in `Rev.4`

* "VCC" and "GND" silkscreen placed too close to connector `J1`. Stroke could be a bit wider for better readability.

  * Adjusted position and size in `Rev.4`

## Resources

* [Digilent Pmod™ License Agreement](https://digilent.com/reference/_media/pmod/pmod/pmod_license_agreement.pdf)

* Digilent Reference: [Programmable Logic](https://digilent.com/reference/programmable-logic/start)

## Licensing

If not stated otherwise within the specific file, the contents of this project are licensed under the CERN Open Hardware Licence Version 2 - Permissive. The full license text is provided in the [`LICENSE`](LICENSE) document.

    SPDX-License-Identifier: CERN-OHL-P-2.0

This licensing model is compliant with the [Open Source Hardware Definition 1.0](https://www.oshwa.org/definition/).

## Legal Notice

"Digilent" is a registered trademark of *Digilent, Inc*. All other trademarks and registered trademarks mentioned herein are property of their respective owners.