TLV320AIC3111EVM-K: Unable to add more than one input on PurePath Studio

Souvik Saha

Part Number: TLV320AIC3111EVM-K
Other Parts Discussed in Thread: TLV320AIC3111, TLV320AIC3254

We require two mono inputs from two different microphones giving analog input. Hence we were trying to add two Analog Input blocks on PurePath. However we were getting an error "Only 1 AnalogInput component is allowed".

However the datasheet for TLV320AIC3111 supports 3 single ended inputs.

Please explain why we are encountering this error.

Also it will be appreciated if any material or support for the programming is supported.

over 4 years ago

0 Steve-Wilson over 4 years ago

TI__Mastermind 30030 points

Souvik,

Purepath studio is a tool to configure the DSP of the device. there is only One ADC, and as such there can only be one digital input.

there are three single ended analog inputs that can be mixed or muxed to the ADC.

best regards,

Steve Wilson

0 Souvik Saha over 4 years ago in reply to Steve-Wilson

Intellectual 625 points

We have two different microphones that we plan to connect single ended on J7 on the TLV320AIC3111EVM-K.

We need to process each microphone channel individually. We would like to know if we can split these data streams, process it individually and then merge it back together again to give out the final processed audio output.

Regards,

Souvik

0 Steve-Wilson over 4 years ago in reply to Souvik Saha

TI__Mastermind 30030 points

Souvik,

This is not possible with one ADC. an alternate choice for the Codec would be the TLV320AIC3254, or if you can use two digital mics, the AIC3253.

best regards,

-Steve Wilson

Audio

Audio forum

TLV320AIC3111EVM-K: Unable to add more than one input on PurePath Studio