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Open-source USB interface: Audio Widget
Open-source USB interface: Audio Widget
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Old 5th February 2018, 07:26 AM   #2381
zdr is offline zdr  Belgium
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Quote:
Originally Posted by cspirou View Post
I've looking for DACs to practice my SMD soldering and this looks like a nice open source project. Are there PCBs availible?
I have AWDSP boards available with ADA DSP and Microcontroller already soldered, which is bit too much for a novice anyway.
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Old 5th February 2018, 07:35 AM   #2382
borges is offline borges  Norway
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Can you do TQFP144 with your tools? If so i may be able to help you out with boards.

BÝrge

Quote:
Originally Posted by cspirou View Post
I've looking for DACs to practice my SMD soldering and this looks like a nice open source project. Are there PCBs availible?
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Old 5th February 2018, 03:18 PM   #2383
cspirou is offline cspirou  United States
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Originally Posted by borges View Post
Can you do TQFP144 with your tools? If so i may be able to help you out with boards.

BÝrge
Yes I can. I have a reflow oven and SMD rework station. Have done a lot of smaller no-lead chips and looking for something more challenging
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Old 20th April 2018, 02:19 PM   #2384
keantoken is offline keantoken  United States
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I need a good ADC for measurements, I was looking into the SDR-widget. I was thinking maybe I could connect the I2S bus to a USB board like the Amanero. What do you suggest?
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Old 21st April 2018, 04:48 AM   #2385
1audio is offline 1audio  United States
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Open-source USB interface: Audio Widget
??? The Audio Widget is a USB interface ??? Maybe I don't quite understand what you are asking for? How good an ADC are you after? Build or buy? Big project or just need to get to work measuring?

The SDR widget is a USB Audio Class 2 interface for an AK5394A. You could build it. I think you need to make boards and flash the USB chip to get it going. The original supply are long gone. There are few comparable alternatives.
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Old 15th May 2018, 12:02 PM   #2386
keantoken is offline keantoken  United States
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Sorry, I never got a notification for your reply.

I just need the best ADC I can get for a low price. Yeah, I know. It needs galvanic isolation too.

I could make boards if I had a very concrete idea of what should go on them, although I've never done digital and it would eat up a lot of my time.
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Old 15th May 2018, 12:05 PM   #2387
zdr is offline zdr  Belgium
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I see there is mkiii out in the wild. Is it just the firmware, or are there any hw changes too?
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Old 15th May 2018, 01:05 PM   #2388
borges is offline borges  Norway
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Hi zdr,

The USB DAC 128 Mk 3 has four HW changes: 1) it uses the same ADP151 3.3V regulator for the MCU as for the analog parts, 2) there is no clock divider as MCLK passes straight to the MCU, 3) LEDs are R+G surface mount models, 4) The USB connector is now B instead of mini-B.

BÝrge
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Old 18th May 2018, 11:11 AM   #2389
zdr is offline zdr  Belgium
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Something went wrong with my windows 10 driver for UAC2 when I changed the usb port. It would not play anything in Foobar in UAC2 mode, while UAC1 works fine. No error, just hangs, like it's being paused. Tried to perform cleanup multiple times, everything installs without any errors, but UAC2 mode just not working. Going back to previous USB port did not help either. Windows rebooted twice as well.
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Old 18th May 2018, 12:32 PM   #2390
borges is offline borges  Norway
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Hi, try uninstalling everything ASIO and Audio Widget related. It is my experience that the new Win10 UAC2 class driver takes priority over the ASIO device driver.

The ASIO driver isn't currently actively maintained. But it is open source, so if you wish to lend a hand, just let us know!

BÝrge
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