Patent ID: 6054828
Filing Date: 2000-04-25
Classification: G11B,H03M

Abstract:
An integrated circuit device including components defined in integrated circuit chips and components defined on a printed circuit board, the integrated circuit device is configured to be implemented in a disk drive system that includes a disk media, the integrated circuit device comprising:a servo controller chip including a compensator/processor, a digital-to-analog converter, and a switch, the switch is configured to receive a high gain signal for controlling one of an open state and a closed state of the switch; anda power amplifier chip including amplifying elements, the power amplifier chip includes a first input and a second input, both of which connect to selected ones of the amplifying elements, the digital-to-analog converter having a first output that is in communication with the switch and the first input of the power amplifier chip, the digital-to-analog converter having a second output that is in communication with the amplifying elements, and the switch has an output that is coupled to the first input of the power amplifier chip.