07-05-2024, 06:43 PM
(07-05-2024, 02:28 PM)hifinet Wrote: An inexpensive reclocker for ProtoDAC:
Forum member @ECELO confirmed recently that the Inno-Maker HiFi DAC HAT ( InnoMaker ) functions well as an inexpensive reclocker at $32.99 USD. It does not have the best quality clock crystals, but sound quality is reported to be very good. It will certainly be an improvement from the I2S signals of the RPi, especially for 44.1 files. Based on the photo, the clock crystal is an SCTF clock oscillator (located near the midpoint at the top, marked X1 and X2 on the PCB). Disclosure: I have no affiliation with this product, and no personal experience.
Thank you @hifinet for passing this along. I may well get one to use with my ProtoDAC(s). Two things come to mind:
a) Are the data pins on the GPIO isolated input from output? There needs to be some easy way to get the reclocked data up to the ProtoDAC above this hat. Looking at the 40Pin illustration in the User's Manual, I can't quite scheme it out.
b) I'm using isolated 5VDC power on my ProtoDAC via the 'cut pin vertical extender' method. Would that power go down to the InnoMaker hat, with the isolating extender below the InnoMaker hat, or should the extender go between the InnoMaker hat and the ProtoDAC? .
Since you haven't seen/touched/used one of these, I realize this may not be something you can answer. Perhaps @ECELO can help here.
Thanks to you both, skip