Receiver
AssigneeNXP B.V.
InventorsSebastien Robert, Walter Jaudard
Life of this patent
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Abstract
A receiver (400; 500) comprising an amplifier (406; 506) having an input (408) and an output (410). The input (408) of the amplifier is configured to receive a signal. The receiver also comprises a feedback path (412; 512) between the output (410) and the input (408) of the amplifier (406; 506), wherein the feedback path (412; 512) includes a filter (402; 502) and a buffer amplifier (414; 514) in series. The input of the buffer amplifier (414; 514) is connected to the output (410; 510) of the amplifier (406; 506). The output of the buffer amplifier (414; 514) is connected to the input of the filter (402; 502). The output of the filter (402; 502) is connected to the input (408; 508) of the amplifier (406; 506). The filter (402; 502) is configured to pass signals having a desired frequency.
Claims13
A receiver comprising:
- a variable gain amplifier having an input and an output, wherein the input of the variable gain amplifier is configured to receive a signal;
- and
- a feedback path between the output and the input of the variable gain amplifier, wherein the feedback path includes a filter and a buffer amplifier in series, wherein an input of the buffer amplifier is connected to an output of the variable gain amplifier, an output of the buffer amplifier is connected to an input of the filter, an output of the filter is connected to the input of the variable gain amplifier, and wherein the filter is configured to pass signals having a desired frequency;
- and a detector configured to detect the output of the amplifier and control the gain of the variable gain amplifier in accordance with the output of the variable gain amplifier in order to avoid distortion of the output.
Dependencies are inferred from the claim text.