A 900 Mbit/s CMOS Data Recovery DLL using Half-Frequency Clock

نویسنده

  • Maarten Kuijk
چکیده

A CMOS sub-circuit that is able to improve data communication is described. It removes jitter and hence improves the eye diagram of high-speed digital data signal. The circuit is based on a delay-locked loop and uses a half-frequency reference clock. The prototype circuit is fabricated in 2.5 V, 0.25-μm CMOS and occupies an area of only 270 x 50 μm. It is demonstrated that at 900 Mbit/s NRZ data, jitter is reduced from 118.2 ps down to 31.3 ps RMS jitter for a power consumption of only 3 mW.

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تاریخ انتشار 2001