TAS5411-Q1: LC filter for AD modulation

na na78

Guru 16770 points

Part Number: TAS5411-Q1
Other Parts Discussed in Thread: TAS5421-Q1

Is it capable to populate LC filter for AD modulation with TAS5411-Q1?

The following image is reference. The purpose is for EMC.

Is there any point to be cared?

BestRegards

over 6 years ago

0 Gregg Scott over 6 years ago

TI__Mastermind 34305 points

The TAS5421-Q1 utilizes BD modulation, so the LC filter must be in the BD modulation scheme as shown in figure 11 in your email.

0 na na78 over 6 years ago in reply to Gregg Scott

Guru 16770 points

Hi Gregg

Thank you for reply.

If possible, could you please tell us why LC filter configuration for AD modulation can not be used for TAS5421-Q1?
Could it be led to device damage?

BestRegards

0 Gregg Scott over 6 years ago in reply to na na78

TI__Mastermind 34305 points

The signal is common mode and the capacitor across the the filter will have the same signal on each end rendering the capacitor useless.

Audio

Audio forum

TAS5411-Q1: LC filter for AD modulation