19001699. Discrete-Time Filter, Receiver, Transmitter, and Communication Device (Huawei Technologies Co., Ltd.)
Discrete-Time Filter, Receiver, Transmitter, and Communication Device
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Discrete-Time Filter, Receiver, Transmitter, and Communication Device
This abstract first appeared for US patent application 19001699 titled 'Discrete-Time Filter, Receiver, Transmitter, and Communication Device
Original Abstract Submitted
A discrete-time filter includes a transconductance circuit, a switched-capacitor filter circuit, a first sampling capacitor, a second sampling capacitor, and a switch, where an output end of the transconductance circuit is coupled to a first node through the switched-capacitor filter circuit; both a first end of the first sampling capacitor and a first terminal of the switch are coupled to the first node; and both a second terminal of the switch and a second end of the first sampling capacitor are grounded. The second sampling capacitor is coupled to the switch such that sampling is implemented and negative feedback is provided by switching connection ends of the switch to adjust a feedback coefficient.
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