Dfplayer pro hasn't line out - help build one!
![userHead](https://dfimg.dfrobot.com/dfPortrait2.png)
Dfplayer mini has two ways to output audio:speaker and stereo line out
Dfplayer pro has only dual speaker out without common ground.
I 'd like to connect Dfplayer pro with external amplified speakers so I must have something like line out with common ground.
I found one or two ways to make a common ground output but neither worked.
Firstly I tried a capacitor (100uf) at positive output. Secondly I tried capacitor and resistor on negative output. Nothing worked. I have sound but with extreme distortion - maybe dc current or very high voltage output.
Any ideas to have line out?
Hi
Could you please try DAC out? Here are two pins for DAC output, so you can use your external amplifier without distortion.
Here is the datasheet of the chips, you can design your own circuit base on it.
https://img.dfrobot.com.cn/wiki/none/e8c7321ed76977b2362b9e3641058cc6.pdf
![](https://dfimg.dfrobot.com/nobody/makelog/6d7fc2f384efb744ae37a25a223f5bdd.png)
![userHeadPic](https://dfimg.dfrobot.com/dfPortrait2.png)