Hi, I am using all features of AFE5851 successfully, except digital high-pass filter. HP filter is set in registers 22[0], 22[4:1] and 33[0], 33[4:1]. Register 22 works for the channels 9-16(clear effect with the most aggressive filtering k=2). Register 33 has no effect on any channel (supposed to be channels 1-8?). Tested on multiple AFE5851 on multiple boards. Please confirm that datasheet (pages 19-20) is correct (is it really register 33?) and digital high-pass filter really works for all AFE channels.
Best Regards,
Vassili