TLV320AIC3104EVM-K: TLV320AIC31004. The Codec with nRF 4350 integration is what I intend to use for stereo output. Does it support then please share the details

Hi,

I can get back to you on this tomorrow. Sorry about the delay.

Best,
Mir

Hi Jeffred,

Thank you so much for your reply. We are going to work on EVB for initial tone genration for different frequencies from 250 Hz to 8 kHz. Apart from that, we will change the dB for volume control at different stages. The output we will check on headphones with L-R separately. kindly guide. 

Hi,

I would recommend you download the SLAC249 software, this is the GUI for the EVM: https://www.ti.com/tool/download/SLAC249

This has some preset configurations that you can try to get some beginning I2C code, and then we can edit based on that and the register map in the device datasheet. Are you trying to send PGA (ADC) data to the headphone, or DAC data? This will impact the registers that you need to set.

Best,
Mir

Hi Jeffers,

We successfully interfaced TLV320 EVB with NRF EVB. We are facing the below issue in cofig side of I2C interface. The same Interface we did with ESP32 board and it works sucessfuly.

Currently we are integrating the nRF5340 Audio DK with the TLV320AIC3104 codec. The problem which we are facing is I2C communication, i.e. receiving error code -5, which indicates an I/O error during I2C communication. We have gone through the DevZone forum. However, we are still stuck in this error, and it would be really appreciable if you could help us resolve this issue as early as possible. I have attached a code snippet which contains information regarding I2C initialization and also console output

Hi,

Can you explain more what you are doing to get this issue? The screenshot is referring to an error code on your MCU side. Also, can you measure the I2C lines (SDA and SCL) when you are trying this communication? Were you ever able to get the AIC3104 to communicate over I2C with the NRF MCU?

Best,
Mir

Hi Mir,

I discovered that the configuration was not in line with the real one, and yes, it comes from the MCU side. SO has been resolved. Therefore, our main goal is to wirelessly produce pure tone at various DB levels. Thus, NRF and TLV are used. 

The TLV320's most recent issue is that the output impedance is 16 ohms and my load is 10 ohms. So must balance the corresponding impedance. To balance it, I am attempting to use any Class D audio amplifier CHIP. Give your thoughts, please. such as TPA2012D2 or PAM8403

Hi,

Our amplifiers and audio converters are run by different teams, I am forwarding this thread to our audio amplifiers team. Can you specify what output power you are looking for with the 10ohm load?

Best,
Mir

Hi Heena,

Similar to TPA2012D2 you can consider TPA2017D2 and TPA2026D2, these are similar devices with different variety of features.
Alternatively, you may use a pair of mono amplifiers such as TPA2011D1 or TPA2005D1.

You may also post a new question on e2e with your specific amp requirements so we can track your question better.

Best regards,
-Ivan Salazar
Applications Engineer