-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > I thought the MF-6 was simply a switched-capacitor "boxcar" filter >like you are already using for the primary filter? How does it reject >harmonics? I'm not really sure of the internals, but it's outputting a nice clean sine. It's clocked a lot faster, 50x (actually 64X in my application) rather than 8x. -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.2 for non-commercial use iQA/AwUBOMdPOoFlGDz1l6VWEQKu+ACgoCT3QnOKQJ6aO861Wr8C7HSQioUAoIov MBxW3BWFo5RKXa6m7LaT3jOb =EwMY -----END PGP SIGNATURE-----