Parallel Sampling Circuit for Higher Analog Data Rate
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Solution Overview
Problem
Existing signal processing circuits require two amplifiers to double the data rate of analog signals, leading to increased power consumption.
Innovation Solution
A signal processing circuit that uses two sampling capacitors and a signal processor to sample and process analog signals in parallel, allowing a single amplifier to output amplified signals at a doubled data rate without increasing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two amplifiers are used to double the data rate of analog signals, then the data rate is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by alternating the operation of a single amplifier between two time periods. In the first time period, the amplifier processes signals from the first sampling capacitor while the second sampling capacitor charges. In the second time period, the amplifier processes signals from the second sampling capacitor while the first sampling capacitor charges. This periodic switching enables the system to achieve doubled data rate output while maintaining single amplifier operation, thereby resolving the contradiction between productivity improvement and power consumption increase.
Solution Approach 2:
The patent applies segmentation by dividing the signal processing function into two separate sampling capacitors that operate in parallel but are processed sequentially by a single amplifier. This segmentation allows the system to handle twice the amount of data by splitting the sampling function while using time-division multiplexing for amplification, thus achieving doubled data rate without requiring two amplifiers and avoiding increased power consumption.
2Productivity
If two amplifiers are used to process analog signals in parallel, then the data rate is doubled, but device complexity increases
Solution Approach 1:
The patent implements universality by designing a single amplifier that performs multiple functions through time-division multiplexing. The amplifier serves as the processing element for both the first and second sampling capacitors, alternating between them in different time periods. This multi-functionality allows one amplifier to replace what would traditionally require two amplifiers, thereby doubling the data rate while reducing device complexity and the number of required amplifier components.
Data Source
AI summary
A signal processing circuit includes a first sampling capacitor and a second sampling capacitor that are connected for an input signal path of an analog signal, and a signal processor configured to perform predetermined processing on the analog signal sampled by the first sampling capacitor and the analog signal sampled by the second sampling capacitor. The sampling of the analog signal transmitted to one capacitor of the first sampling capacitor and the second sampling capacitor, and the predetermined processing performed by the signal processor on the analog signal sampled by another capacitor of the first sampling capacitor and the second sampling capacitor can be performed in parallel.