An Analog DFE for Disk Drives Using a Mixed-Signal Integrator*
نویسندگان
چکیده
An analog adaptive decision-feedback equalizer (DFE) is described. The DFE cancels intersymbol interference using four feedback taps and a fifth tap cancels DC offset. The coefficient for each tap is adapted using a small mixed-signal integrator. The DFE dissipates 220 mW at a data rate of 150 Mb/s. The active area is 1.8 mm2 in a 1mm CMOS process.
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