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Part Number: TPA3118D2
Dear Friends,I have build an audio amplifier with the TPA3118 Class D amplifier. the issue is that at the output i have a DC voltage, half of the power supply voltage. I added two 1000uf each in series with the positive and negative terminal of the speaker respectively for DC filter but the DC voltage is still there.
I used the schematic in this pdf file www.ti.com/.../slou342a.pdf
That is normal and correct phenomenon on OUT_P/N.
OUT_P or N has DC offset(PVDD/2).
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In reply to Yanming Gong:
Thank you for your answer.
That PVDD/2 voltage will not damage the speaker?
Anyway, I will connect my loudspeakers to test it.
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