Other Parts Discussed in Thread: TPA6130A2
Hi,
I am trying to use the TPA6130A2EVM and after some difficulty was able to install the driver on my Windows 10 machine (see the USB enumeration on my Device Manager below). But the TPA613x GUI still says the correct driver is not installed. I was not able to program successfully the USB-miniEVM0304_441KHZ.bin file, as step 17 of the user guide shows.
I also have the following questions:
1) The TPA6130A2 has a high power supply ripple rejection ratio (-76 to -97 dB as datasheet shows). Is an LDO supply required for low noise operation, or can a switching regulator be used?
2) The speakder signals we are using are 2 MHz PDM differential signal. Is a low pass filter required before inputting this signal to the TPA6130A2 circuit?
3) Are the input AC coupling capacitors necessary if the input signal is a perfectly balanced differential signal?
Thanks,
Alula Hailu