TLV320AIC3101EVM-K: has no output

Amy Luo

Part Number: TLV320AIC3101EVM-K
Other Parts Discussed in Thread: TLV320AIC3101

Hi team,

TLV320AIC3101EVM-PDK is used to test the performance of TLV320AIC3101, but there is no output at the lineout. The test method is as follows:

The jumpers on the board are set according to the default setting in the user guide.

Input differential signal at J6 and J14, and the amplitude of input sine signal is 0.707vrms, 1kHz8712.3101.docx

The test process and register configuration are shown in the attached document: 3101

Could you help me to analyze the problem? thank you!

over 3 years ago

0 Aaron Estrada over 3 years ago

TI__Mastermind 22950 points

Hello Amy,

Thanks for sharing. This really seems like a configuration issue. I will go through and see if they are enabling the correct paths. One thing to mention here is that we really recommend using the Command Line Interface to program the device. Using the other tabs can sometimes be buggy and not actually program the device as intended.

Again, I will look through the document and send a script to load in the GUI. Please allow a day or two for this.

Regards,

Aaron

0 Amy Luo over 3 years ago in reply to Aaron Estrada

TI__Expert 6890 points

Hi Aaron,

I would appreciate it

0 Aaron Estrada over 3 years ago in reply to Amy Luo

TI__Mastermind 22950 points

Hi Amy,

I should be back with more info before the EOD tomorrow. One quick question though... Is the intent to use a bypass path for analog input --> analog output?

Thanks for your patience!

Regards,

Aaron

0 Amy Luo over 3 years ago in reply to Aaron Estrada

TI__Expert 6890 points

Hi Aaron,

Bypass paths are not intended.

The customer feedback that the board can work now by shorting DIN and DOUT of J14 in USBMODEVM

Another problem is that the default sampling frequency in EVM is 44.1KHz, how to adjust it to 48Khz. has tried to set the DESIRED fSref button in the GUI, but it didn't work.

0 Aaron Estrada over 3 years ago in reply to Amy Luo

TI__Mastermind 22950 points

Hi Amy,

I apologize for such a delay in my response. Pease see the following thread on how to update the USB-MODEVM firmware for 48kHz.

Regards,

Aaron

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TLV320AIC3101EVM-K: has no output