TPA3255: Phase Shift

Arjun P bhaskar

Part Number: TPA3255

Tool/software:

Hi TI,

Will there be any phase shift from input to output in the class D?

In my project there is a phase shift of 180 degree from input to output.

It is a PBTL configuration

0 Arjun P bhaskar 7 months ago

0 Arjun P bhaskar 7 months ago in reply to Arjun P bhaskar

Input - input given to the system from analyzer

Output - Output across the 4 ohm load

Audio_p - Audio input -(INPUT_A)

Audio_N - Audio input-(INPUT_B)

Out_A - Output A from class d

0 Ramsey Foote 7 months ago in reply to Arjun P bhaskar

Hi Arjun,

The TPA3255 is an inverting amplifier. Any further phase shift will be dominated by the LC filter.

Regards,

Ramsey

0 Arjun P bhaskar 7 months ago in reply to Ramsey Foote

Which means that phase shift will be there

0 Arjun P bhaskar 7 months ago in reply to Ramsey Foote

Can you please reply to the below question

0 Jesse Ji 7 months ago in reply to Arjun P bhaskar

hi Arjun

the phase shift will be there for the analog amplifier.

thanks

jesse

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