Title :
A 1 GHz CMOS analog equalizer for perpendicular magnetic recording
Author :
Meksiri, Sukarasut ; Vichienchom, Kasin ; Wilairat, Decha
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper describes the design of a CMOS analog discrete-time equalizer for perpendicular magnetic recording (PMR) read channel. In this design the structure of analog FIR filter that places rotating switch matrix between DAC and multiplier has been proposed. It reduces an accumulative switching error in analog samples due to rotating switch matrix. A 7-tap filter circuit based on GPR2 target was designed and simulated using TSMC 0.18 μm CMOS process parameters. Simulation results show good agreement with the results of the system level simulation. At 1 GHz sampling frequency the equalizer dissipates 1.5 mW.
Keywords :
CMOS analogue integrated circuits; FIR filters; digital-analogue conversion; multiplying circuits; perpendicular magnetic recording; 7-tap filter circuit; CMOS analog discrete-time equalizer; DAC; GPR2 target; TSMC CMOS process parameter; accumulative switching error; analog FIR filter; frequency 1 GHz; multiplier; perpendicular magnetic recording read channel; power 1.5 mW; rotating switch matrix; size 0.18 mum; CMOS analog circuit; FIR; analog signal processing; discrete-time equalizer; perpendicular magnetic recording;
Conference_Titel :
TENCON 2010 - 2010 IEEE Region 10 Conference
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-6889-8
DOI :
10.1109/TENCON.2010.5686144
