Hi Everyone, first time poster here.
I've been digging around these forums in preparation to build some active speakers.
Clearly there are lots of cheap Chinese boards available and the TDA7492/8 and TPA3116 seem very popular.
I noticed when looking at the popular mods that it's quite common to convert these from single ended to differential to stop a lot of the unwanted noise (a big thanks to @doctormord for the guides, they're very helpful)
This got me wondering whether anyone has driven two completely isolated boards (including separate power supplies) from a single CSR8635 bluetooth module on the first board.
Is something like the attached possible?
I recognise that the first board has other benefits given the CSR8635 is local, such as mute/standby.
I guess these could be added to the second board by introducing something like an opto-isolator to drive the functions.
The key thing would be the two amplifier boards are powered by separate PSUs.
Thanks.
I've been digging around these forums in preparation to build some active speakers.
Clearly there are lots of cheap Chinese boards available and the TDA7492/8 and TPA3116 seem very popular.
I noticed when looking at the popular mods that it's quite common to convert these from single ended to differential to stop a lot of the unwanted noise (a big thanks to @doctormord for the guides, they're very helpful)
This got me wondering whether anyone has driven two completely isolated boards (including separate power supplies) from a single CSR8635 bluetooth module on the first board.
Is something like the attached possible?
I recognise that the first board has other benefits given the CSR8635 is local, such as mute/standby.
I guess these could be added to the second board by introducing something like an opto-isolator to drive the functions.
The key thing would be the two amplifier boards are powered by separate PSUs.
Thanks.
