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TPA2011D1: Question of Impedance Match of Input Mixer Circuit

Part Number: TPA2011D1

Hi Sirs,

As a following of the previous thread at https://e2e.ti.com/support/audio/f/audio-forum/974236/tpa2011d1-tpa2011-input-mixer-circuit-review

We calculated the impedance matching after DC block capacitors: R9=R3//R6//R8//R6~=39kR, C9=C3//C6//C7//C8~=0.22uF

However, should we take account of the low pass filter circuit R1, R2, C1, C2 and R4, R5, C4, C5 to avoid pop noise during power up.
Would you please provide tips how to calculate and optimize the component values to minimize pop noise during power up?



Thank you and Best regards,

Wayne Chen
04/20/2021