Controlled orthogonal current oscillator with ranging
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United States of America Patent
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May 15, 2001
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N/A
app pub date -
May 28, 1999
filing date -
May 28, 1999
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Abstract
An adjustable frequency oscillator with a wide tuning range which can be voltage or current controlled. A maximum tuning per feedback current is obtained by phase shifting a feedback signal by approximately 90 degrees with respect to the oscillating output signal, which is internally generated by the adjustable frequency oscillator. Over the frequency range of operation, the oscillation frequency of the oscillating output signal is linearly controllable. The adjustable frequency oscillator is also implemented as a ring oscillator and/or an oscillator with ranging.
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