cooling of TDA
Congratulations for this excelent project! I am going to replicate this DAC too. In my hifi rig, P. Daniel's shigaclone starving for a good DAC 🙂. At the picture showed at the 1st page, I can't see any cooler. I guess, in the absence of passive cooler at 8.3V the TDA chip get very hot, or?!
Congratulations for this excelent project! I am going to replicate this DAC too. In my hifi rig, P. Daniel's shigaclone starving for a good DAC 🙂. At the picture showed at the 1st page, I can't see any cooler. I guess, in the absence of passive cooler at 8.3V the TDA chip get very hot, or?!
Hi
I measured the temp on my DAC chips ( se page 28 ) and after about an hour of playing they are about 60° C at 8.3v
/Anders
I measured the temp on my DAC chips ( se page 28 ) and after about an hour of playing they are about 60° C at 8.3v
/Anders
I do not think that there has ever been a kit, Peter just explained and showed the schematics
/Anders
/Anders
I don't think so, this is old technology and I don't expect much sales.
If I ever need to build one, I'm using p2p methods or modify someone else's boards 😉
If I ever need to build one, I'm using p2p methods or modify someone else's boards 😉
Potentially really noobish question since I know very little about digital stuff... is there a way to get the clock and slave the transport to it?
I have a shigaclone transport (Tibi's 1st clone, now awaiting for the MK2) which requires 16,9344MHz
I have a shigaclone transport (Tibi's 1st clone, now awaiting for the MK2) which requires 16,9344MHz
So finally i have put my birch-board dac in to a enclosure.
and as you see i have instead of capacitors on the output used transformers. 🙂 Very happy with that.
Thanks Peter once again for a fantastic design
/Anders
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
and as you see i have instead of capacitors on the output used transformers. 🙂 Very happy with that.
An externally hosted image should be here but it was not working when we last tested it.
Thanks Peter once again for a fantastic design
/Anders
Any similar XOR Gate should do. Although my suggestion would be to omit this chip altogether, unless you expect to be swapping polarity very often. You can correct absolute phase by simply swapping your speaker cables so that amp "-" goes to speaker "+". Just remember to swap cables for both speakers, otherwise you will end up with speakers playing out of phase.
Hi Peter,
I am looking at images from your audiosector website that shows a version of your TDA1543 SPDIF DAC on a single PCB. It has a single Hammond 16V(229D16) transformer. I am a fledgling builder in the digital realm and was hoping to build this project as a learning tool. Am I right in the one transformer? If so did this operate both DAC and receiver with 16V instead of the 18V shown in this DIYAudio build? If I can do with single is there any forum conversations on that design I can reference?
Thank you for your help, your ideas and build skills are inspiring.
Steve(hartbigsky)
I am looking at images from your audiosector website that shows a version of your TDA1543 SPDIF DAC on a single PCB. It has a single Hammond 16V(229D16) transformer. I am a fledgling builder in the digital realm and was hoping to build this project as a learning tool. Am I right in the one transformer? If so did this operate both DAC and receiver with 16V instead of the 18V shown in this DIYAudio build? If I can do with single is there any forum conversations on that design I can reference?
Thank you for your help, your ideas and build skills are inspiring.
Steve(hartbigsky)
Hi,
I built the analogue section of the design posted in Uncle_Leon's post #237. Currently it is fed with a I2S signal from my Amanero, but next step will be to build the digital section with the cs8412.
For IV coupling capacitors, I am using some Dayton Audio 4.7uF 250V Polypropylene Capacitors from Parts Express. I wanted to try some other capacitors but wasn't sure if I needed to stick to the 4.7uf value. Are there any good alternatives that can be recommended (in lieu of Blackgates)? Should I stick to 4.7uf? TIA for any advice.
Link to post # 237:
http://www.diyaudio.com/forums/audi...ng-limits-tda1543-nos-dac-24.html#post3283399
I built the analogue section of the design posted in Uncle_Leon's post #237. Currently it is fed with a I2S signal from my Amanero, but next step will be to build the digital section with the cs8412.
For IV coupling capacitors, I am using some Dayton Audio 4.7uF 250V Polypropylene Capacitors from Parts Express. I wanted to try some other capacitors but wasn't sure if I needed to stick to the 4.7uf value. Are there any good alternatives that can be recommended (in lieu of Blackgates)? Should I stick to 4.7uf? TIA for any advice.
Link to post # 237:
http://www.diyaudio.com/forums/audi...ng-limits-tda1543-nos-dac-24.html#post3283399
You can find forum discussion here: http://www.diyaudio.com/forums/audio-sector/149601-audiosector-usb-dac.html
It's perfectly fine to use single transformer. I'm using Hammond with dual 8V windings: one for DAC, one for receiver circuit.
Thanks for answering my post, how do you get your p2p so close???!!!!Are most contacts the part leads? Also one image looks like the TDA1543 are sitting on a silver case of some type? Do you have any p2p instructions anywhere? Thanks!!!
hartbigsky
hartbigsky
TDA1543 sits in a socket, for easy swapping when offset needs adjustment.
I try to use the component leads for most of the connections; with some practice, making it p2p like that is not a big deal. Besides the pictures and schematics, there's no other instructions.
I try to use the component leads for most of the connections; with some practice, making it p2p like that is not a big deal. Besides the pictures and schematics, there's no other instructions.
