TAS2110EVM: TAS2110EVM PLL Lock

Du Lo

Part Number: TAS2110EVM
Other Parts Discussed in Thread: TAS2560, TAS2560EVM

I'm trying to setup the TAS2110EVM to play audio from USB source on PC. Basically just testing out the EVM. I followed the User Guide and setup the EVM per pdf. I then use PPC3 to connect and power up the device with default settings. There is no audio being output, sometime a high pitch tone on power cycle when I try again. The IRQ shows PLL Lock and Device Power Up fault:

What could be happening and what can I try to solve this so I can evaluate with different sources.

3 months ago

0 Ivan Salazar 3 months ago

TI__Guru* 98235 points

Hi Du,

The PLL Lock interrupt only means that PLL is able to lock with the input clocks, that should be OK.

Can you share a capture of your EVM jumpers?
What is the voltage you're supplying to VIN jack?
Share a capture of your Windows sound settings. Make sure EVM is setup as playback device and not muted.
Share a capture of the Latched interrupts from PPC3 as well.
Are you using default settings from PPC3? Or is there any custom adjustment you did in the software?

Best regards,
-Ivan Salazar
Applications Engineer

0 Du Lo 3 months ago in reply to Ivan Salazar

Intellectual 400 points

EVM Jumpers:

VIN = 5.0V, current reading is 123mA.

Default settings on PPC3, I also did factory reset to test and came back with same results - no audio.

To make sure drivers were fine, I attached my TAS2560 EVM and retested. I was able to get audio output on the TAS2560 EVM.

+1 Ivan Salazar 3 months ago in reply to Du Lo

TI__Guru* 98235 points

Hi Du,

What you shared seems OK. TAS2560EVM has a different controller and different driver, that may be why that works but TAS2110EVM does not.

Are you on Windows 10 or 11? If using 11, is there any chance you can try on Windows 10?
Attached is the stand-alone audio driver, can you try installing this one?
If you have an oscilloscope available, can you probe SDIN and check if the switching changes based on audio playback?

Best regards,
-Ivan Salazar
Applications Engineer

6521.TexasInstruments_USBAudio_v4.13.0_2017-08-21_setup (1).zip

0 Du Lo 3 months ago in reply to Ivan Salazar

Intellectual 400 points

Hi Ivan,

Thank you for the suggestions!

Updating the drivers solved the issue. (I was/am testing on Windows 10).

Best regards,

Audio

Audio forum

TAS2110EVM: TAS2110EVM PLL Lock