Skip to main content

CHATER 7A: OpenSpand Sound Ouput

Device Compatibility

Zebra's OpenSpand's audio ouput jack accepts a standard 3.5mm stereo plug.

Amplifiers and Powered Speakers:  The OpenSpand audio output was designed to provide high-quality low-noise output to high impedance devices like powered speakers and ampliers.

Headphones and earbuds:  Most stereo headphones and earbuds have low impedances of 32 or 16 ohms.  The OpenSpand output drives the more common 32 ohm device adequately, but the volume may not be a high as you would like and the sound quality not as high as with powered speakers or amplifiers.


Simple Sound Output Test Program

this section is in development


Hardware details

 

Zebra's version of the OpenSpand incorporates the WDMCU-1334 sound module, which is a clone of the Adafruit I2S Stereo Decoder - UDA1334A

If you are a hardware geek and wan't to know nearly everything there is to know about this sound module visit Adafruit 

https://learn.adafruit.com/adafruit-i2s-stereo-decoder-uda1334a/pinouts