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TWL6040 earpiece interface: DC blocking capacitor

Naveen Kumar S
Intellectual 625 points
Other Parts Discussed in Thread: TWL6040, TWL6041

Hi All,

We are using the earpiece interface of TWL6040 as headset speaker(16 or 32 ohm) in our design. 

As the TWL6041 datasheet (SWCS066C, page 33) states "...2-Vrms signal centered on ground.." for Ear phone interface, is it required to include a series DC blocking capacitor on EARP and EARN lines?

If yes, can you please provide details for capacitor selection.

Thanks & Regards,

Naveen