Hi Andrew...
this is my pcb for some thing similar to yours, i have put a amp,TDA7439, SI4703 and a blue tooth on the same board. and used a second small board which will have a arduino on my custom board with LCD as piggyback.
Only issue i face on my board is Bluetooth even though its from Microchip and a shielded module i have noise on my audio line. which i suspect is due to either or both of the following reasons
1) regular caps used ( no specific low e.s.r.).
2) single side board.
this is my pcb for some thing similar to yours, i have put a amp,TDA7439, SI4703 and a blue tooth on the same board. and used a second small board which will have a arduino on my custom board with LCD as piggyback.
Only issue i face on my board is Bluetooth even though its from Microchip and a shielded module i have noise on my audio line. which i suspect is due to either or both of the following reasons
1) regular caps used ( no specific low e.s.r.).
2) single side board.
Hi guys,
I've been reading through this project its looks good.
I'm planning on something similar ish, a vehicle radio but not necessarily car radio 'shape', this is for a 4x4.
I messed around with the Si4803 before in this project:
https://www.youtube.com/watch?v=c2Sp-iYPYpM
And I'm testing an mp3 played I wrote some code for right now, it uses the vs1053 codec, and will support folder and file names.
So its a case of putting them together, maybe with a smps and a class d amp.
On thing I'm not finding that easily available is a i2c controlled audio source switch and bass/treble controls.
I've been reading through this project its looks good.
I'm planning on something similar ish, a vehicle radio but not necessarily car radio 'shape', this is for a 4x4.
I messed around with the Si4803 before in this project:
https://www.youtube.com/watch?v=c2Sp-iYPYpM
And I'm testing an mp3 played I wrote some code for right now, it uses the vs1053 codec, and will support folder and file names.
So its a case of putting them together, maybe with a smps and a class d amp.
On thing I'm not finding that easily available is a i2c controlled audio source switch and bass/treble controls.
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