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US 11,658,621 B2Granted
Adaptable receiver amplifier
AssigneeAnalog Devices, Inc.
InventorsRalph D. Moore, Jesse Bankman
Life of this patent
Estimating the term…
Abstract
Provided herein are apparatus and methods for a multi-stage signal-processing circuit. The signal-processing circuit can include multiple configurable stages that can be cascaded and configured to process an input signal. Control circuitry can be used to select an output of the configurable stages. Serial data can be recovered with good signal integrity using a signal monitor with the configurable stages by virtually placing the signal monitor on a buffered output node.
Claims20
A circuit for dynamically processing a signal, the circuit comprising:
- an input stage;
- a first processing stage coupled to the input stage and a first output, wherein in a first operating state of the circuit, the first processing stage is configured to process and output a first signal, wherein in a second operating state of the circuit, the first processing stage is configured to output a high impedance, and wherein the first processing stage is configured to switch between the first operating state and the second operating state based on a first control signal and a second control signal;
- and
- a second processing stage coupled to the input stage and a second output that is distinct from the first output, wherein in the first operating state of the circuit, the second processing stage is configured to output a high impedance, wherein in the second operating state of the circuit, the second processing stage is configured to process and output a second signal, and wherein the second processing stage is configured to switch between the first operating state and the second operating state based on the first control signal and the second control signal.
1 more element
A first stage of a plurality of configurable stages of a limiting amplifier, the first stage comprising:
- an input stage;
- a first processing stage coupled to the input stage and a first output, wherein in a first operating state of the first stage, the first processing stage is configured to process and output a first signal, wherein a second operating state of the first stage, the first processing stage is configured to output a first non-active signal, wherein the first non-active signal is a high impedance signal, and wherein the first processing stage is configured to switch between the first operating state and the second operating state based on a first control signal and a second control signal;
- and
- a second processing stage coupled to the input stage and a second output distinct from the first output, wherein in the first operating state of the first stage, the second processing stage is configured to output a second non-active signal, wherein the second non-active signal is a high impedance signal, wherein in the second operating state of the first stage, the second processing stage is configured to process and output a second signal, and wherein the second processing stage is configured to switch between the first operating state and the second operating state based on the first control signal and the second control signal.
1 more element
A signal-processing apparatus, comprising an input stage;
- and
- a plurality of processing stages coupled to the input stage, wherein each of the plurality of processing stages comprises a transistor, wherein the plurality of processing stages comprises a first processing stage and a second processing stage,
- wherein in a first operating state, the first processing stage outputs a first active output signal along a first output path and the second processing stage outputs a high impedance along a second output path,
- wherein in a second operating state, the first processing stage outputs a high impedance along the first output path and the second processing stage outputs a second active output signal along the second output path,
- wherein the first processing stage is configured to switch between the first operating state and the second operating state based on a first control signal and a second control signal,
- wherein the second processing stage is configured switch between the first operating state and the second operating state based on the first control signal and the second control signal, and
- wherein the first and second output paths are distinct.
4 more elements
Dependencies are inferred from the claim text.