Hi,
We are connected the HPR_COM/HPL_COM to GND (see schematics below).
When the headfones are connected we facing with overheating of device.
Can you please advise what is a wrong.
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Hi,
We are connected the HPR_COM/HPL_COM to GND (see schematics below).
When the headfones are connected we facing with overheating of device.
Can you please advise what is a wrong.
Hi Lev,
I don't see anything necessarily wrong with your schematic, what are you plugging into J2 and J5? A standard headphone shouldn't cause this issue, so what is the input signal and rating into MIC2. What is the impedance of the microphone?
Additionally, if your headphone has a MIC or is a T/R/R/S type, you can connect MIC2 directly into pin 4 of the audio jack to eliminate J5 all together.
Regards,
Hi,
Can you provide what is recommended connection of TI for HPR_COM/HPL_COM if it''s unused.
Thanks,
Hi Lev,
The connection seems fine as is, the customer is setting the common mode of the headphone driver to GND just as the sleeve (pin 1) of the the audio jack is connected to GND.
Additionally, this application note covers different headphone output configurations. Headset Detection for TLV320AIC33 and TLV320AIC310x Family
Regards,
Hi,
What is the speaker load? Also, what current do you measure driving the speaker?