Clock Multiplexing Circuit for Accurate High-Speed Edge Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As the frequency of clock signals increases to enhance data transmission speed in memory devices, the reliability of these devices decreases due to challenges in accurately determining rising and falling edge time points, leading to complex circuit designs with high power consumption and manufacturing costs.
Innovation Solution
A clock multiplexing circuit with a simpler structure is introduced, utilizing transistors to generate pulse signals based on the logic levels of input clock signals, which reduces circuit complexity and power consumption by eliminating the need for multiple inverters and transmission gates, while maintaining accurate edge detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the frequency of clock signal is increased to increase data transmission speed, then productivity is improved, but reliability deteriorates due to difficulty in accurately determining rising and falling edge time points
Solution Approach 1:
The clock signal processing is segmented into multiple phases (first clock signal and second clock signal with different phases). By dividing the single clock signal into phased segments, the circuit can accurately detect edge time points through phase comparison, thereby maintaining reliability while operating at high frequencies for improved data transmission speed.
2Measurement precision
If complex circuits with multiple inverters and transmission gates are used to accurately detect edge time points, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The invention extracts and eliminates redundant circuit components (multiple inverters and transmission gates) from the traditional edge detection circuit. By using a simplified configuration with transistors that directly respond to phase-differentiated clock signals, the circuit maintains accurate edge detection capability while significantly reducing overall device complexity.
Solution Approach 2:
The transistor-based circuit structure serves multiple functions simultaneously: it acts as both the edge detection mechanism and the signal processing element. This multi-functional design replaces the need for separate inverters and transmission gates, achieving accurate edge detection with a universal, simplified circuit architecture.
3Measurement precision
If complex circuits with multiple inverters and transmission gates are used to accurately detect edge time points, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The invention extracts and eliminates redundant circuit components (multiple inverters and transmission gates) from the traditional edge detection circuit. By using a simplified configuration with transistors that directly respond to phase-differentiated clock signals, the circuit maintains accurate edge detection capability while significantly reducing overall device complexity.
Solution Approach 2:
The invention replaces expensive, complex circuit components (multiple inverters and transmission gates) with simpler, more cost-effective transistor-based structures. This substitution uses readily manufacturable elements that reduce production costs while maintaining the required measurement precision for edge detection.
4Measurement precision
If complex circuits with multiple inverters and transmission gates are used to accurately detect edge time points, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The invention extracts and eliminates redundant circuit components (multiple inverters and transmission gates) from the traditional edge detection circuit. By using a simplified configuration with transistors that directly respond to phase-differentiated clock signals, the circuit maintains accurate edge detection capability while significantly reducing overall device complexity.
Solution Approach 2:
The invention replaces expensive, complex circuit components (multiple inverters and transmission gates) with simpler, more cost-effective transistor-based structures. This substitution uses readily manufacturable elements that reduce production costs while maintaining the required measurement precision for edge detection.
Data Source
AI summary
Disclosed is a clock multiplexing circuit which includes a first transistor that is between a first input terminal that receives a first input clock signal and an output terminal that outputs an output pulse signal and operates based on a logic level of a second input terminal receiving a second input clock signal, and a second transistor that is between the output terminal and a first voltage node and operates based on the logic level of the second input terminal. The first input clock signal and the second input clock signal have the same period and have different phases. The output pulse signal transitions to a first logic level at a first time when the first input clock signal transitions to the first logic level and transitions to a second logic level at a second time when the second input clock signal transitions to the first logic level.