Hello everyone,
Aliexpress and Ebay modular TDA7293 PCB's seem like a crap shoot, why not just build the stock example in the ST TDA7293 data sheet?
Is there a reason I am missing that 90% of the for sale boards are not just a copy of this layout?
Thank you,
David.
Aliexpress and Ebay modular TDA7293 PCB's seem like a crap shoot, why not just build the stock example in the ST TDA7293 data sheet?
Is there a reason I am missing that 90% of the for sale boards are not just a copy of this layout?
Thank you,
David.
Maybe they didn't read the data sheet.
Or maybe they knew more about the part than the mfr.
I wonder which one?
Or maybe they knew more about the part than the mfr.
I wonder which one?
There’s a well developed and tested improved layout for TDA7293 available here and it addresses several issues as discussed in the thread in post 1.
https://www.diyaudio.com/community/threads/xmas-amp-dibyas-tda7293-by-jhofland.365002/
https://www.diyaudio.com/community/threads/xmas-amp-dibyas-tda7293-by-jhofland.365002/
Hi David,
Have you noticed that the electronic schematic does not match the layout of the 2-sided PCB. A number of pins of are not connected on the PCB (mute pin 10 is unfortunately not connected from the master to the slave), and on the slave, pin 2 and 3 (on the PCB) not are not connected to Vs - (as it should be according tot the text in the data-sheet). Edwin
Not very familiar with Tda7293 , can we parallel them same way as lm3886 and not modular configuration ?
TDA7293 allows simple direct paralleling with one chip being the master and one or two more being slaves, it's a feature already built in.