spdif2

S/PDIF optical output for Teensy 3.1.

Parts Required:

  Everlight PLT133/T6A connector, Digikey 1080-1434-ND
  Capacitor, 0.1 uF, 0805 size, Digikey 1276-1003-1-ND

How to use Digikey’s website to find alternate parts when any of these aren’t in stock.

The Teensy Audio library now officially supports S/PDIF output. WAV File Player Example (in Arduino: File > Examples > Audio > WavFilePlayer) has been updated to show how to use it.

The S/PDIF output object is now available in the Audio System Design Tool, so you can easily create arbitrarily complex audio projects with digital S/PDIF output.

Special thanks to Frank Boesing for developing the S/PDIF encoding code!

Ongoing development conversation here:

The S/PDIF signal is output on pin 22. An inexpensive connector (Digikey 1080-1434-ND), or simply a red LED, can be used to couple the digital audio to an optical TOSLINK cable! Resistors and a small transformer can also be used, for non-optical RCA connector S/PDIF.

This is the little test board shown here:

http://www.pjrc.com/store/display_ili9341.html

Parts used on the board are:

    LM7805 voltage regulator        Digikey LM7805ACT-ND
    B130 Schottky diode             Digikey B130-FDICT-ND
    140 mA PTC fuse                 Digikey 507-1495-1-ND
    100 ohm 1/4 watt resistor       Digikey 100XBK-ND
    DC power jack                   Mouser 163-7620E-E
    1uF 0805 capacitor              Digikey 1276-1066-1-ND

How to use Digikey’s website to find alternate parts when any of these aren’t in stock.

An older version of this board had a minor error. You can easily identify the board version by the location of the 100 ohm resistor.

10 watt LED driver board with DMX protocol input and 8 bit control to gamma corrected brightness.

miditest2