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AssigneeAgere Systems Guardian Corp.
InventorsJohnathan P. Comeau, Ronen Malka, David J. Fitzgerald, Sally A. Doherty
Estimating the term…
A preamplifier system is provided for connection through an interconnect to a read head. The interconnect has a characteristic impedance associated therewith. The preamplifier system includes an amplifier circuit having an input for connection to the interconnect. The amplifier circuit amplifies an input signal carried from the read head through the interconnect, yielding an amplified input output signal. A feedback resistance is connected between the amplified output signal and the input of the amplifier circuit. The feedback resistance has a value selected to provide an effective input impedance of the preamplifier system to match the characteristic impedance of the interconnect.
A preamplifier system for connection through an interconnect to a read head, the interconnect having a characteristic impedance, the preamplifier system comprising:
A disk drive having a read system supported by an arm over a surface of a rotatable disk, the read system comprising:
A preamplifier system for connection through an interconnect to a read head, the interconnect having a characteristic impedance, first and second inputs connected to opposite sides of the read head and first and second outputs, the preamplifier system comprising:
A preamplifier system for coupling to a read head having first and second terminals, the preamplifier system comprising:
Dependencies are inferred from the claim text.