| 摘要 |
A charge domain filter with controllable transfer function is disclosed. The charge domain filter has a plurality of switched-capacitor networks, a switching device and a current adder. The switched-capacitor networks are interleaving controlled, and each have an input terminal and an output terminal, and the input terminals of all of the switched-capacitor networks are connected together to be coupled to an input signal. The switching device is designed for transfer function control, and is operated according to a switch control signal. The switching device determines connections between the output terminals of the switched-capacitor networks and how the output terminals of the switched-capacitor networks are coupled to the current adder and thereby generates at least one current adder input. The at least one current adder input is received by the current adder, and the current adder outputs an output signal accordingly.
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