Hello Forum,
has somebody a recommendation of a good DAC that is available in a eval board style PCB at Aliexpress?
I do have some other eval boards of a USB to I2S Bridge, CRS Bluetooth Chipset or ADAU1452.
Now I'm looking for a suitable DAC to build a quick tech-demo before putting everything into a custom DSP board.
My ADC and the USB Bridge are working at 192 kHz, 24 Bit. So this shoud be the minimum for the DAC.
in total I need 3 Channels for the Output. Speaker Left and Right and Subwoofer.
Ideal would be a 4th channel that I can use as an inverted signal since the Sub Amp is working on a differential input signal.
Highend chipsets like the ES9038q2m, ES9038pro or AK4493 seem to be state of the art, but I'm not sure how much hassle it is to get them running. Do I need additional commands from an external µController to configure them? So an ideal DAC for my purpose would be running out of the box or with some simple hardware pull-up / pull-downs.
Best regards
Chris
has somebody a recommendation of a good DAC that is available in a eval board style PCB at Aliexpress?
I do have some other eval boards of a USB to I2S Bridge, CRS Bluetooth Chipset or ADAU1452.
Now I'm looking for a suitable DAC to build a quick tech-demo before putting everything into a custom DSP board.
My ADC and the USB Bridge are working at 192 kHz, 24 Bit. So this shoud be the minimum for the DAC.
in total I need 3 Channels for the Output. Speaker Left and Right and Subwoofer.
Ideal would be a 4th channel that I can use as an inverted signal since the Sub Amp is working on a differential input signal.
Highend chipsets like the ES9038q2m, ES9038pro or AK4493 seem to be state of the art, but I'm not sure how much hassle it is to get them running. Do I need additional commands from an external µController to configure them? So an ideal DAC for my purpose would be running out of the box or with some simple hardware pull-up / pull-downs.
Best regards
Chris
Just the dacs.
Single L/R PCM1794A - https://www.aliexpress.com/item/329...17043173886751906e4079!66118645602!rec!GB!!AB
Dual Parallel L/R PCM1794A - https://www.aliexpress.com/item/100...2b90996478d8fc0df9b4e1ad5ca&afSmartRedirect=y
Single L/R PCM1794A - https://www.aliexpress.com/item/329...17043173886751906e4079!66118645602!rec!GB!!AB
Dual Parallel L/R PCM1794A - https://www.aliexpress.com/item/100...2b90996478d8fc0df9b4e1ad5ca&afSmartRedirect=y
Thank you for the input.
I found a board that is supposed to match the reference design for the AK4493.
AK4493SEQ DAC Decoder Balanced I2S/DSD
might be worth the try. I'm especially interessted in the italien interface.
I found a board that is supposed to match the reference design for the AK4493.
AK4493SEQ DAC Decoder Balanced I2S/DSD
might be worth the try. I'm especially interessted in the italien interface.
I would rather get an eval board from the manufacturer of the chip.
You never know whether those Ali boards are actually representative of the recommended practises from the manu.
Jan
You never know whether those Ali boards are actually representative of the recommended practises from the manu.
Jan
Me too. I've been looking for something that supports it.
How do you use it, parallel or series format?
Jan
Amanero? Usually best to use the I2S connection. Less jitter that way. Also, there is a mod to run Amanero from clean power. @clay-speakers told me about it. Works pretty well to clean up a lot of the USB +5v noise. Still not as good as I2SoverUSB, which is about the same price as a legitimate Amanero, and includes galvanic isolation.
To modify Amanero, remove L1 near the USB connector and apply clean, isolated +5v to the load side. Connect power ground to backplane.
To modify Amanero, remove L1 near the USB connector and apply clean, isolated +5v to the load side. Connect power ground to backplane.
Aliexpress is very risky way to source a genuine part, let alone a decently designed eval board - caveat emptor...
Yes, some Evalboards are just ridiculous overpriced. My goal is just a somehow "working" setup, to quickly test the concept for my DSP. Afterwards I will put everything together on a custom board. Hence I do not have any problems with sourcing at Aliexpress. I know that it is not what I would get from legit sources. But good enough for my use case right now.