Hi team,
I wondering how to calculate the components’ parameter of the second-order filter circuit on the VOUTx? Could you share any doc/materials regarding to this?
Thank you.
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Hi team,
I wondering how to calculate the components’ parameter of the second-order filter circuit on the VOUTx? Could you share any doc/materials regarding to this?
Thank you.
Hi, Fery,
This filter is basically a second-order low-pass filter biased to the Vcom level used to provide sufficient out-of-band noise rejection. This filter can be easily designed with tools like WEBENCH® Filter Designer. The Vcom output is buffered with a voltage follower for biasing purposes. We recommend to follow the suggested values from the device datasheet.
Best Regards,
-Diego Meléndez López
Audio Applications Engineer