The BH6628AFS is a 4-mode read/write IC designed for floppy disk drives and has an active filter that can be set accord ing to transfer rate. Any of multiple write current settings can be selected, and inner track/outer track switching is done internally.

FEATUREs
1) Internal active filter with multiple settings that can be selected for multiple Q and f0.
2) Time domain filter that is internally switchable ac cording to transfer rate.
3) Any of multiple write current settings can be selected, and inner track/outer track switching is done internally.

APPLICATIONs
Floppy disk drives (1MB, 1.6MB and 2MB)