| abstract |
A driver IC (1) for a disk device has a bias terminal (20a) to which a bias voltage supplied by a microcomputer (2) is inputted when driving and controlling a loading motor (4), and a bias terminal (20b) to which the output of a DSP (3) is inputted when driving and controlling a focus coil (5), a tracking coil (6), a sled motor (7) and a spindle motor (8). |