Method and apparatus for operating a continuous time filter of a read/write channel for a hard disk drive

Abstract

A method and apparatus for operating a continuous time filter (CTF) (128) of a read/write channel (108) for a hard disk drive (100). The apparatus includes an input multiplexer (220) that receives an analog signal (215) and transmits the analog signal (215) to a read filter circuit (254) when the CTF (128) is in read mode and to a servo filter circuit (256) when the CTF (128) is in servo mode. The apparatus also includes an output multiplexer (222) that receives a read filter output signal (225) from the read filter circuit (254) when the CTF (128) is in read mode and a servo filter output signal (227) from the servo filter circuit (256) when the CTF (128) is in servo mode. The method includes receiving the analog signal (215) by the input multiplexer (220) and routing the analog signal (215) to the read filter circuit (254) when the CTF (128) is in read mode and routing the analog signal (215) to the servo filter circuit (256) when the CTF (128) is in servo mode.

Dependencies are inferred from the claim text.