This is my test board for PCM2702 USB sound card.
LT1115 in output stage filter. Signal path: silver mica capacitors, black gate N. Assembled and tested. Toroidal transformer designed for audio - 2x14V + 6V, shielded.
LT1115 in output stage filter. Signal path: silver mica capacitors, black gate N. Assembled and tested. Toroidal transformer designed for audio - 2x14V + 6V, shielded.
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.
Veteran, just a quick idea. How about a simple kit to convert optical outputs to SPDIF. I'd buy a couple! 🙂
Very nice!
Just curious, though - why not use a TDA1543 or similar DAC with a PCM2706's I2S output? I've heard it's of much better quality than the PCM27xx line.
Just curious, though - why not use a TDA1543 or similar DAC with a PCM2706's I2S output? I've heard it's of much better quality than the PCM27xx line.
Member
Joined 2003
What's the asking price? Also, does the PCB include a place to connect coax SPDIF output from the PCM2702?
Member
Joined 2003
Hi, just found your website, there is some nice stuff on there! However, I also found the schematic for your USB DAC, and I see that you have not incorporated SPDIF output into the design. I am really at this point looking for a USB to SPDIF converter that works well with Linux to use along with my external DAC. Currently I am using an M-Audio Audiophile 2396 soundcard, but it is finicky in some aspects for Linux use (it works, but not as well as it should/could).
Member
Joined 2003
Sorry, I had confused that IC with PCM2902. I would be interested in your USB to SPDIF converter board if you were to make some 😉.veteran said:
Very nice!
If you could produce a super-simple PGA2311-based preamp kit with a simple serial input, I would be very interested.
Also, I know that Jan at 41hz.com is very interested in producing a PGA3211 preamp. He'd probbably be willing to pay a bit of money for rights to your design.
If you could produce a super-simple PGA2311-based preamp kit with a simple serial input, I would be very interested.
Also, I know that Jan at 41hz.com is very interested in producing a PGA3211 preamp. He'd probbably be willing to pay a bit of money for rights to your design.
dsavitsk said:
The HPDAC looks awesome. I just can't afford one right now, and I'd really prefer to buy a kit over seperate parts.
I've got the boards and some of the parts for the HPDAC, and can't wait to finish it up.. It would never hurt to have another TDA1543-based DAC, though (I have like 12-16 of the chips laying around).
Spasticteapot said:
This is my PGA2310/PGA2310 preamplifier:
An externally hosted image should be here but it was not working when we last tested it.
well, not quite a preamplifier but volume control 😀
HPDAC looks really nice.
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