Second order active high-pass filter with cross-coupled feedback for q enhancement
AssigneeLSI Corporation
InventorAndrew P. Krebs
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Abstract
An apparatus comprising an input circuit, a cross coupled active circuit and an output circuit. The input circuit may be configured to generate a first portion of an intermediate signal in response to an input signal. The cross coupled active circuit may be configured to generate a second portion of the intermediate signal in response to a feedback of an output signal. The output circuit may be configured to generate the output signal in response to the intermediate signal. The output signal may pass frequencies above a target frequency.
Claims20
An apparatus comprising:
- an input circuit configured to generate a first portion of an intermediate signal in response to an input signal;
- a cross coupled active circuit configured to generate a second portion of said intermediate signal in response to a feedback of an output signal;
- and
- an output circuit configured to generate said output signal in response to said intermediate signal, wherein said output signal passes frequencies above a target frequency.
A method for implementing a high pass filter, comprising the steps of:
- (A) generating a first portion of an intermediate signal in response to an input signal;
- (B) generating a second portion of said intermediate signal in response to a feedback of an output signal;
- and
- (C) generating said output signal in response to said intermediate signal, wherein said output signal passes frequencies above a target frequency.
An apparatus comprising:
- means for generating a first portion of an intermediate signal in response to an input signal;
- means for generating a second portion of said intermediate signal in response to a feedback of an output signal;
- and
- means for generating said output signal in response to said intermediate signal, wherein said output signal passes frequencies above a target frequency.
Dependencies are inferred from the claim text.