Other Parts Discussed in Thread: ALLIGATOR, TPA3136D2
Hi,
I am working on the audio demo using the TPA 3136D2 EVM. The load is a
PBTL mono load.
I am using a 4 Ohm 3W resistor for this, resistance measures 4 Ohm on a multimeter.
This resistor is connected across the OUTL+ and OUTR+ points on the EVM.
I have a 1 kHz, 480 mV p-p signal at the RINP TP of the EVM. I can see this on the scope.
I have the voltage between PLIMIT and GND set to 1.25 V.
I am powering the EVM at 12V DC.
I cannot see anything on the scope when I connect a probe across the resistor ends.
I am unable to read any voltage across the resistor leads as well with a multimeter,
AC or DC.
The DC voltage between OUTL+ and GND measures 5.9V DC. Same voltage between
OUTR+ and GND.
Can you offer any pointers on this? I have attached the EVM configuration used
for a mono PBTL load. Does this need changing?
Thank you,
Best Regards,