Single-phase differential conversion circuit, signal processing method for use therewith, and reception apparatus
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United States of America
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Dec 6, 2017
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Dec 6, 2017
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Abstract
This technology relates to a single-phase differential conversion circuit for improving the linearity of input/output characteristics, a signal processing method for use with the circuit, and a reception apparatus. The single-phase differential conversion circuit includes a first source-grounded amplifier and a second source-grounded amplifier. Each of the amplifiers includes a transconductance amplifier section including a transistor for converting an AC component of input potential to a current, a diode load section including a transistor in a diode connection configured as a first load, and a large-signal distortion compensation circuit configured as a second load connected in parallel with the first load. The transistors of the first source-grounded amplifier are each a P-type MOS transistor, and the transistors of the second source-grounded amplifier are each an N-type MOS transistor. This technology is applied advantageously to a reception apparatus for receiving TV signals, for example.
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