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DATE
2006
IEEE

Two-phase resonant clocking for ultra-low-power hearing aid applications

13 years 9 months ago
Two-phase resonant clocking for ultra-low-power hearing aid applications
Resonant clocking holds the promise of trading speed for energy in CMOS circuits that can afford to operate at low frequency, like hearing aids. An experimental chip with 110k transistors and more than 2500 latches, has been designed, fabricated and tested. The measured energy consumption of the design at 0.8 V is 62 µW/MHz, about 7.5% less than the conventional single-edge-triggered benchmark. Closer analysis reveals that much of the energy savings brought about by resonant clocking at low supply voltages are lost when a CMOS circuit is operated at higher voltages. This is because of the crossover currents that persist for much of a clock period when a circuit is driven from sine-type clock waveform.
Flavio Carbognani, Felix Bürgin, Norbert Felb
Added 10 Jun 2010
Updated 10 Jun 2010
Type Conference
Year 2006
Where DATE
Authors Flavio Carbognani, Felix Bürgin, Norbert Felber, Hubert Kaeslin, Wolfgang Fichtner
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