| 摘要 |
A signal processing circuit (300) and method for processing an input signal are described. The circuit includes a frequency selective network (312), an amplification stage (302, 304), and at least one continuous-time feedback path from the output of the amplification stage (302, 304) to the frequency selective network (312). The amplification stage (302, 304) includes a switching amplifier (302) and an analog amplifier (304). Switching circuitry (314, 316, 318) alternately enables the switching (302) and analog amplifiers (304) for processing of the input signal.
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