Receiver circuit, particularly for mobile radio
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United States of America Patent
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Oct 24, 2006
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N/A
app pub date -
Mar 10, 2003
filing date -
Sep 8, 2000
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Abstract
In a receiver circuit for demodulating a high-frequency signal, a limiting amplifier stage with a downstream sigma-delta converter is connected in series with a mixer stage that transforms a high-frequency signal that is supplied at its input into an intermediate-frequency signal. The intermediate-frequency signal at the output of the limiting amplifier stage is value-discrete and time-continuous. The described receiver architecture has a high sensitivity, is substantially independent of production tolerances, and occupies a small area; therefore, it is particularly suitable for mobile radio applications.
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