Receiving circuits and methods for increasing bandwidth
AssigneeShanghai Zhaoxin Semiconductor Co., Ltd.
InventorZHAOYANG SUN
Life of this patent
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Abstract
A receiving circuit and method for increasing bandwidth are provided. The receiving circuit includes a linear equalizer circuit and a variable gain amplifier. The linear equalizer circuit includes a first negative impedance converter, to generate a first capacitance. The variable gain amplifier is coupled to the linear equalizer circuit. The variable gain amplifier includes a first-stage gain circuit and a feedback circuit. The first-stage gain circuit is coupled to the feedback circuit, and the feedback circuit generates a zero-point at the output end of the first-stage gain circuit.
Claims18
A receiving circuit, comprising:
- a linear equalizer circuit, comprising a first negative impedance converter, the first negative impedance converter generates a first capacitance;
- and
- a variable gain amplifier, coupled to the linear equalizer circuit and comprising a first-stage gain circuit and a feedback circuit, wherein the first-stage gain circuit is coupled to the feedback circuit, and the feedback circuit generates a zero-point at an output end of the first-stage gain circuit.
A method for increasing bandwidth, applied to a receiving circuit, comprising:
- generating a first capacitance by a first negative impedance converter of a linear equalizer circuit of the receiving circuit;
- receiving an output signal generated by the linear equalizer circuit by a first-stage gain circuit of a variable gain amplifier of the receiving circuit;
- and
- generating a zero-point at the output end of the first-stage gain circuit by a feedback circuit of the variable gain amplifier.
Dependencies are inferred from the claim text.