USB ADC on Cirrus Logic CS5381

[maxssau]

Good afternoon!

Finished the audio ADC on CS5381.

Connection interface: USB only.

The input buffer is made on an FDA op amp, so you can connect both balanced and non-balanced sources. Recording formats: 24-bit 44.1 kHz-192 kHz.

Powered by USB, current consumption 750 mA.

A pair of images: a noise shelf and THD, the source of the Victor generator at 1 kHz. The input divider -12 dB.

There are certain problems due to the low input resistance, so it may be necessary to recalculate the filter, which may cause a slight deterioration in THD

 

[Vovk Z]

Not bad. I could buy it if I haven't had Asus Xonar Essence STX.

 

[altor]

Not bad. I could buy it if I haven't had Asus Xonar Essence STX.

maxssau's device looks better.

 

[sEBYres]

Nice work maxssau!

 

[Vovk Z]

maxssau's device looks better.

Yes, it does.

 

[H713]

Will there be boards available? This looks quite interesting for measurement usage.

 

[erikovsky]

I am interested in how you build up the connection between ADC and USB?
Is it XMOS I2S to USB or you use some MCU to handle the data I/O?

 

[maxssau]

Hi! I use the XMOS XUF208 microcontroller, SDK version 6.15.2

 

[maxssau]

Will there be boards available? This looks quite interesting for measurement usage.

Yes of course, contact me by mail 9890175@mail.ru

 

[maxssau]

Noise level:

 

[whitesnake]

What is the price?

 

[maxssau]

650$

 

[maxssau]

full scale distortion