Hybrid Serial Receiver Circuit for Baud-Rate Power Control
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Solution Overview
Problem
Existing receiver circuits struggle to maintain performance and efficiency across a wide range of baud rates without sacrificing either power consumption or performance, as analog-based circuits are inefficient at high baud rates while ADC-based circuits are inefficient at low baud rates.
Innovation Solution
A hybrid receiver circuit that combines both analog and ADC-based receiver circuits, dynamically switching between them based on baud rate conditions to optimize performance and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If an analog-based receiver circuit is used, then power consumption is reduced at low baud rates, but performance degrades at high baud rates
Solution Approach 1:
The receiver circuit dynamically switches between analog and ADC-based processing paths based on the detected baud rate. At low baud rates, the circuit uses analog-based recovery to minimize power consumption, while at high baud rates, it transitions to ADC-based recovery to maintain performance integrity.
Solution Approach 2:
The system changes its operational parameters by selecting different receiver paths (analog vs. ADC-based) depending on the baud rate parameter. This allows the circuit to optimize its characteristics - using low-power analog processing when possible and high-performance ADC processing when necessary.
2Reliability
If an ADC-based receiver circuit is used, then data recovery performance is maintained at high baud rates, but power consumption increases
Solution Approach 1:
The receiver circuit dynamically switches between analog and ADC-based processing paths based on the detected baud rate. At low baud rates, the circuit uses analog-based recovery to minimize power consumption, while at high baud rates, it transitions to ADC-based recovery to maintain performance integrity.
Solution Approach 2:
The system changes its operational parameters by selecting different receiver paths (analog vs. ADC-based) depending on the baud rate parameter. This allows the circuit to optimize its characteristics - using low-power analog processing when possible and high-performance ADC processing when necessary.
3Device complexity
If a single receiver circuit design is used, then device complexity is reduced, but performance consistency across varying baud rates deteriorates
Solution Approach 1:
The receiver circuit is segmented into multiple processing paths: an analog-based recovery path and an ADC-based recovery path. Each path is optimized for specific baud rate ranges, allowing the system to maintain performance consistency across varying conditions by selecting the appropriate segment.
Solution Approach 2:
The receiver circuit achieves multi-functionality by incorporating both analog and ADC-based recovery capabilities within a single device. This universal design allows the circuit to handle a wide range of baud rates effectively, switching between functions based on operational requirements.
Data Source
AI summary
A hybrid receiver circuit included in a computer system may include both an analog and an ADC-based receiver circuit. A front-end circuit generates different equalized signals based on received signals that encode a serial data stream that includes multiple data symbols. Depending on a baud rate of the serial data stream, either the digital receive circuit or the analog receiver circuit is activated to provide the desired performance and power consumption over the range of possible baud rates. The ADC-based receiver circuit may include multiple analog-to-digital converter circuits with different resolutions that can be selected for different baud rates.