Reconfigurable DAC Channel Pairing for Area-Efficient Performance Gain
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Solution Overview
Problem
Integrated circuits with DAC channels face challenges in meeting diverse user performance demands due to redundant and unused on-chip circuitry, occupying significant chip area without providing optimal performance enhancements.
Innovation Solution
An integrated circuit design that allows configurable DAC channels, enabling users to combine stages of one channel with another to enhance performance, sacrificing channel count for improved functionality without additional redundant circuitry, and allowing users to choose interconnections through user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional circuitry is added to improve DAC channel performance, then performance characteristics are improved, but chip area is significantly occupied by redundant and unused circuitry
Solution Approach 1:
The patent makes DAC channel circuitry multi-functional by enabling it to operate in both independent and combined modes. The same physical circuit components can serve different purposes: they can function as separate DAC channels or be combined to enhance the performance of a single channel, eliminating the need for dedicated redundant circuitry for each performance enhancement scenario.
Solution Approach 2:
The patent introduces dynamic reconfiguration capability through control signals that can change the operational state of DAC channels at runtime. Users can dynamically switch between having multiple independent channels or combining channels for enhanced performance, allowing the system to adapt its configuration based on real-time performance requirements without physical reconfiguration.
2Reliability
If DAC channels are combined to enhance performance, then performance characteristics are improved, but the number of available channels is reduced
Solution Approach 1:
The patent enables dynamic reconfiguration of DAC channels through control signals, allowing users to switch between different operational modes at runtime. This dynamic capability resolves the contradiction by making channel count and performance enhancement mutually exclusive only when needed, while allowing full channel availability when performance enhancement is not required.
Solution Approach 2:
The patent changes the operational parameters of DAC channels based on control signals. By modifying the connection state and operational mode of channels dynamically, the system can adjust the number of effective channels and their performance characteristics, allowing users to optimize between channel count and performance enhancement based on their specific needs.
3Adaptability or versatility
If additional circuitry is added to meet varying user requirements, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent makes the DAC channel circuitry multi-functional, allowing the same physical components to serve different purposes based on control signals. This universality provides adaptability to meet varying user requirements without adding dedicated circuitry for each possible configuration, thereby avoiding increased device complexity.
Solution Approach 2:
The patent enables the DAC channel system to self-reconfigure based on control signals without requiring external additional circuitry. The existing circuit components can reconfigure themselves into different operational modes (independent or combined operation) based on the control inputs, providing adaptability while maintaining simplicity.
Data Source
AI summary
The present disclosure relates to an integrated circuit with at least a first channel and a second channel. Each channel includes at least a DAC. The integrated circuit also includes a number of circuit elements interconnected between the channels. The circuit elements can be changed between a short circuit state and an open circuit state. Normally, each channel will operate independently of one another, using only the circuit components in its respective channel. However, the circuit elements are arranged to allow a user to combine part of the second channel with the first channel to improve the functionality and performance of the first channel. In particular, a state of the circuit elements can be chosen to combine components of the second channel with the first channel. For example, components (e.g. a sub-stage) of the second channel can be connected in parallel with corresponding components (e.g. a corresponding sub-stage) of the first channel. This may reduce the number of available channels, since the second channel can no longer be used as an independent channel. However, the performance of the first channel is enhanced. The presence of the circuit elements allow an end user to decide whether to sacrifice channel count for performance enhancements. For example, the user can provide user input to the integrated circuit to select how the channels are interconnected. Moreover, the integrated circuit does not use additional redundant circuitry to improve the first channel, and rather takes components from the second channel. As such, the integrated circuit can have a reduced size.