Abstract: A switched capacitor circuit includes a threshold detector to generate a threshold detection signal when a difference between first and second input signals crosses a predetermined level. A variable current source produces a varying amount of current in response to the difference between the input signals. A voltage measurement means produce a measurement signal in response to the difference between the input signals. A correction means produces a correction signal in response to the measurement signal to produce an optimum coarse phase overshoot. A timing comparison means produces a timing signal in response to the difference between the input signals. A correction means produces a correction signal in response to the timing signal to produce an optimum coarse phase overshoot.
Type:
Application
Filed:
January 3, 2011
Publication date:
July 14, 2011
Applicant:
CAMBRIDGE ANALOG TECHNOLOGIES LLC
Inventors:
Matthew Z. Straayer, Hae-Seung Lee, Kush Gulati, Carlos E. Munoz