Inexpensive USB - SPDIF suggestion needed

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beancounter

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Joined 2010
#1
Hi,

Looking for an inexpensive USB-SPDIF converter. I need:

- asynchronous
- at least 24/96
- dual converters (ie one for 44.1/88.2, one for 48/96)
- doesn't have to be pretty. Doesn't even need a box.
- coax out, optical not required
- DIY is ok if it's no more complicated than adding a power supply and box. Already have enough projects to last me for quite a while

Looking for decent sound quality, not totl hi-end. System is laptop-> JRiver-> converter-> MSB Link Dac-> Ampex 620 amps-> Hifiman HE-5LE

The MSB is a little long in the tooth, but sounds nice for now.

Thanks!
 
#4
Eldam said:
IFI NANO DIGI ? But not so cheap but with the T. Loesch USB interface 🙂
Click to expand...

I am mostly tube DIY; Thorsten has cost me a lot of $$ over the years 😛

Price range - well, I could get a WAVEIO for $160 +/- and add a supply and box and have a fantastic unit. I don't need fantastic, just good; I guess am looking at $100 or less, or I may as well just step up to the WAVEIO

perhaps I have answered my own question?
 
#5
Hi,

So look at my design, some people from diyaudio use them.
http://www.diyaudio.com/forums/digi...dif-converter-24bit-96khz-13.html#post3837366

Latest version (red solder mask):
- USB to SPDIF converter asynchronous mode
- fsample 44.1kHz,48kHz,88.2kHz,96kHz 16bit and 24bit
- Wolfson WM8804 SPDIF transmitter
- Outputs: COAX, OPTO (optional), AES/EBU (optional)
- powered from USB or external power supply
- two jow jitter XOs 22.5792 Mhz (for 44.1Khz and 88.2kHz) and 24.576MHz (for 48kHz and 96 kHz)
- short track for Master Clock signal (from XOs to TAS1020B) without multiplexer in the signal path
- low noise LDOs
- 5 LEDs for indication an operating mode and Fs
- opional galvanic isolation (ADUM3160)
- available full electrical schematic

I have some spare PCBs and I can assemble any version.
Version A = Standard COAX output + low jitter oscillators 255PLN (about 80$)
Version B = A+ galvanic isolation (ADUM3160) 310PLN (about 94$)
Options: TOSLIK +10PLN, AES/EBU +20PLN

Shipping cost is 20 PLN about 6$ (Registered Mail Polish Post)
PapPal Fee is 4% of total.
PLN = Polish Zloty

Best regards
JarekC
 
#6
Notice than if Nano Digi is not DIY you have already a battery embeded (10 hours) and a volume plot which don't croos the signal path. Of course when the unit is used as an USB to its spidf output, you just use the management of the USB (not DAC section used). It works from 16/44 to 24/192. Wich I founded interresting was the use of the jitter technologie reduction of AMR.

I thinked oabout it because a similar need given up... less pleasure than with DIY but here you are no trouble about the powersupply... And if not interrested anymore easy to sell it !

two cents sorry, not really DIY but for me DIY is also 'money management'

cheers
 
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