TPA2100P1 Filter Issue

Jerry Chu

Other Parts Discussed in Thread: TPA2100P1EVM

Hi Sir,

I have tested TPA2100P1EVM. If the output is R+C+L, the input current is 50mA. If I shorted the L, the output will be R+C, the input current is 350mA. Do you know how to explain it? Or do you have any official document for it? Thanks!

over 13 years ago

0 Fred Shipley over 13 years ago

TI__Genius 16645 points

Hello Jerry:

To begin our discussion, can you please let me know what load you placed on the EVM?

Resistor? Value?

Capacitor? Value?

Regards,

Fred

0 Fred Shipley over 13 years ago

TI__Genius 16645 points

Hello Jerry:

Without the inductor, you are probably driving the carrier into the load along with the modulation.

I am going to mark this as varified but let me know if you have further questions.

Rgds,

Fred

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TPA2100P1 Filter Issue