Driving Adjustment Circuit for High-Speed Signal Integrity
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Solution Overview
Problem
High-speed data transmission in electronic devices leads to inter-symbol interference, limiting the operating frequency and development of these devices due to increased load pressure on data selectors.
Innovation Solution
A driving adjustment circuit comprising sequentially connected NOT gate modules that perform NOT operations and voltage adjustments on signals to improve transmission performance, reducing inter-symbol interference and enhancing data transmission rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operating frequency is increased to achieve higher data transmission rate, then the productivity is improved, but inter-symbol interference occurs which deteriorates the signal quality
Solution Approach 1:
The driving adjustment circuit performs preliminary voltage adjustment on the to-be-driven signal before it is transmitted. The circuit adjusts the voltage of the signal in advance to reduce voltage differences between logic levels, which prevents inter-symbol interference from occurring during high-speed transmission, thereby maintaining signal quality at higher data transmission rates
Solution Approach 2:
The patent changes the voltage parameter of the signal by using the driving adjustment circuit to adjust voltage levels. The circuit modifies the voltage differences between logic signals to optimize signal transmission characteristics, allowing higher operating frequencies without suffering from inter-symbol interference
2Productivity
If the data transmission rate is increased, then the productivity is improved, but the load pressure on data selectors increases which deteriorates the device performance
Solution Approach 1:
The patent extracts the voltage adjustment function from the main data transmission path and implements it through a separate driving adjustment circuit. This circuit is selectively activated based on transmission rate requirements, removing the burden of voltage adjustment from the data selectors and reducing their load pressure while enabling higher data transmission rates
Data Source
AI summary
A driving adjustment circuit and an electronic device are provided. The driving adjustment circuit includes a first NOT gate module, second NOT gate module and third NOT gate module sequentially connected. An input terminal of the first NOT gate module and an output terminal of the third NOT gate module are connected to a signal terminal. The first NOT gate module acquires a to-be-driven signal from the signal terminal and perform a NOT operation on the to-be-driven signal to obtain a first adjustment signal. The second NOT gate module receives the first adjustment signal and performing the NOT operation on the first adjustment signal to obtain a second adjustment signal, when the driving adjustment circuit is in an ON state. The third NOT gate module receives the second adjustment signal and perform voltage adjustment processing on the to-be-driven signal at the signal terminal according to the second adjustment signal.