Projectitis
Well-known member
Hi all,
As part of the project I'm working on I have stereo audio generated on the DAC pins of the T_3.6.
I have this TDA1308-based pre-amp board on the way to drive headphones, or maybe laptop speakers if suitable. Here's a pic:
I have next to no experience with the electronics side of things, so naturally I have a few questions
My setup currently is T_3.6 in a breadboard powered by USB. Currently no other hardware/buttons/anything attached.
Eventually it will be powered by a 3.6v lithium (PSP battery) and will have all sorts of other hardware also (display, analog and digital inputs, serial wifi board etc).
Any help appreciated
Cheers,
Peter
Edit: I've hit 2^6 posts. Nice
As part of the project I'm working on I have stereo audio generated on the DAC pins of the T_3.6.
I have this TDA1308-based pre-amp board on the way to drive headphones, or maybe laptop speakers if suitable. Here's a pic:
I have next to no experience with the electronics side of things, so naturally I have a few questions
My setup currently is T_3.6 in a breadboard powered by USB. Currently no other hardware/buttons/anything attached.
Eventually it will be powered by a 3.6v lithium (PSP battery) and will have all sorts of other hardware also (display, analog and digital inputs, serial wifi board etc).
- Can I connect my L/R audio directly from DAC to the inputs on this board, or do I need a capacitor also, as I've seen in another thread where DAC pins are connected to powered speakers?
- Similarly, can I hook up the headphone jack directly to the outputs of this board?
- Do I connect the input GND pin on the board to AGND on the teensy? Or just to normal GND (i.e. v-)?
- Related to questions about GND, this may be too big a question for this thread alone (I have a feeling it's the result of a couple of years' tertiary study) - how can I design my eventual setup for the least interference/noise?
Any help appreciated
Cheers,
Peter
Edit: I've hit 2^6 posts. Nice