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TPA6139A2 vs. AK4201

Other Parts Discussed in Thread: TPA6139A2, TPA6138A2

Dear, Sir.

I am promoting TPA6139A2 to replace from AK4201.

Customer side, Input is PWM. So that, they put 2-pole LPF input for AK4201.

Looks like impossible to construct 2-pole LPF and tune it on TPA6139A2 because

resisters are integrated inside.

Is there any solution to reach AK4201 level using TPA6139A2?