Differential receiver
First Claim
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1. A differential receiver, comprising:
- a differential circuit having an output node and at least one common node; and
a feedback circuit connected between the output node and the at least one common node to reduce receiver bandwidth and reject noise for a specific interval of time.
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Abstract
A differential receiver includes a feedback circuit connected between an output node and one common node of the differential receiver to reduce the bandwidth and reject noise for a specific interval of time. In operation, a differential receiver bias current is controlled responsive to an output signal at the output node. Bias current is turned on during a steady-state mode with respect to the output signal, and is turned off, for a given delay period, in response to a transition mode with respect to the output signal.
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Citations
24 Claims
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1. A differential receiver, comprising:
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a differential circuit having an output node and at least one common node; and
a feedback circuit connected between the output node and the at least one common node to reduce receiver bandwidth and reject noise for a specific interval of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A differential receiver, comprising:
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a pair of differential input transistors coupled at a common node and whose gates receive a differential input signal;
a pair of load transistors coupled to the pair of differential input transistors to form at least one output node;
a current sink circuit coupled to the common node of the pair of differential input transistors; and
a feedback circuit coupled between the output node and the current sink circuit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method, comprising:
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differentially receiving a signal to generate an output signal; and
controlling differential receiver bias current responsive to the output signal. - View Dependent Claims (22, 23)
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24. A method for rejecting noise signals by a differential receiver comprising:
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detecting an input signal by the differential receiver; and
outputting a response from the differential receiver to a feedback circuit for reducing a current flowing through the differential receiver and thereby reducing a bandwith of the differential receiver in order to reject noise for a specific interval of time.
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Specification