The BH6626FS is a read / write IC designed for floppy disk drives and has an internal active filter for memory systems in which saddle margins are important. Any of multiple write current settings can be selected, and both density switching and inner track / outer track switching are done internally.

Features
1) Active filter switched internally.
2) Time domain filter with internal switch set according to transfer rate.
3) Density switching and inner track / outer track switching are done internally.

Applications
    Floppy disc drives (1MB and 2MB)