Source Code : TANNER
A duty-cycle correction technique using a novel pulse width modification cell is demonstrated across a frequency range of 100 MHz–3.5 GHz. The technique works at frequencies where most digital techniques implemented in the same technology node fail. An alternative method of making time domain measurements such as duty cycle and rise/fall times from the frequency domain data is introduced. The data are obtained from the equipment that has significantly lower bandwidth than required for measurements in the time domain. An algorithm for the same has been developed and experimentally verified. The correction circuit is implemented in a 0.13-µm CMOS technology and occupies an area of 0.011 mm2. It corrects to a residual error of less than 1%. The extent of correction is limited by the technology at higher frequencies. The proposed architecture of this paper area and power consumption analysis using tanner tool.
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