Low jitter phase locked loop for single phase applications
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United States of America Patent
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Apr 19, 1994
Grant Date -
N/A
app pub date -
Oct 1, 1992
filing date -
Oct 1, 1992
priority date (Note) -
Expired
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Abstract
A circuit for producing an output signal representative of the phase angle of a single phase input signal includes a phase shift generator for receiving a single phase input signal and for generating a quadrature signal and a direct signal in response to the single phase input signal, and a phase locked loop coupled to the phase shift generator for generating an output signal in response to the quadrature and direct signals such that the output signal is phase locked with the single phase input signal. A method is also provided for producing an output signal representative of the phase angle of a single phase input signal, comprising the steps of: receiving a single phase input signal; generating a quadrature signal and a direct signal in response to the single phase input signal; and generating an output signal in response to the direct and quadrature signals, such that the output signal is phase locked with the single phase input signal.
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