TAS5727EVM: Could not set up the EVM

Robin Yu

Intellectual 2190 points

Part Number: TAS5727EVM

Hi team,

I have followed the instruction of user guide, but failed finally.

The related description is attached, please help to look at where the problem is located.

Thank you.

TAS5727EVM set up.docx

over 7 years ago

0 Alex Bhandari-Young over 7 years ago

TI__Mastermind 25845 points

Hi Robin,

I will look into this in the morning and get back to you.

Thanks,

Alex

0 Alex Bhandari-Young over 7 years ago in reply to Alex Bhandari-Young

TI__Mastermind 25845 points

Hi Robin,

Is the sine wave you mentioned at the output voltage ripple or a larger amplitude sine wave? Would you be able to send a screenshot of the waveform?

Thanks,

Alex

0 Robin Yu over 7 years ago in reply to Alex Bhandari-Young

TI__Intellectual 2190 points

Hi Alex,

Not a ripple, the amplitude is about 1~2V.

I'm sorry I'm on a business trip and don't save the waveform, I could give it to you later this week.

Thank you.

Robin

0 Alex Bhandari-Young over 7 years ago in reply to Robin Yu

TI__Mastermind 25845 points

Hi Robin,

That would be great. When I power up the device I see a voltage ripple, but a sine wave is strange. If you could send me the waveforms that you see at the analog input, on the SDIN1 data pin (this passes through the header connecting the two boards), and that sine wave at the output that would be very helpful.

Regards,

Alex

0 Robin Yu over 7 years ago in reply to Alex Bhandari-Young

TI__Intellectual 2190 points

Hi Alex,

To get a SDIN1 waveform corresponding to input, should I input a sine signal?
I input a signal from a music player, so I think the waveforms I get separately at these two nodes are not corresponding.
Thanks.

Robin

0 Alex Bhandari-Young over 7 years ago in reply to Robin Yu

TI__Mastermind 25845 points

Hi Robin,

A sine wave input is a good idea. Please use a frequency in the audible range (say 1kHz) and ensure that the frequency of the input sine wave is different than output sine wave you are seeing so I can differentiate them. If you can also provide me with the frequency of the output sine wave that would be helpful.

Thanks,

Alex

0 Robin Yu over 7 years ago in reply to Alex Bhandari-Young

TI__Intellectual 2190 points

Hi Alex,

I have make the speaker work. It seems the problem of using method of GUI.
Thanks for your help.

Robin

Audio

Audio forum

TAS5727EVM: Could not set up the EVM