Semiconductor circuit and method for operating the same
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Solution Overview
Problem
Existing semiconductor circuits face challenges in achieving high resolution and low capacitance loading while managing power consumption and capacitance loading due to increased transistor counts, which adversely affect output resistance control.
Innovation Solution
A semiconductor circuit design incorporating a calibration device, adjustment device, and driver configuration that adjusts output resistance through bit manipulation, reducing the number of bits in signals to improve resolution without increasing power consumption or capacitance loading by comparing the last two bits and adjusting accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of transistors is increased to improve resolution and decrease quantization error, then measurement precision is improved, but power consumption and capacitance loading are adversely increased
Solution Approach 1:
The patent changes the control parameter from direct transistor switching to output resistance control. By continuously adjusting the output resistance of the driver circuit, the system achieves fine-grained control of the transmitted signal amplitude, effectively increasing resolution without adding more transistors. This parameter transformation resolves the contradiction by achieving measurement precision improvement through a different control dimension that does not increase power consumption.
2Measurement precision
If the number of transistors is increased to improve resolution and increase step size, then measurement precision is improved, but capacitance loading is adversely increased
Solution Approach 1:
The patent transforms the control approach from discrete transistor switching to continuous output resistance modulation. This allows the driver to achieve high resolution through smooth resistance variation rather than through multiple discrete transistor states, thereby reducing the capacitance loading associated with switching numerous transistors. The continuous parameter control achieves the same resolution effect with lower capacitive burden.
3Speed
If output resistance control is improved for high speed drivers, then speed is improved, but device complexity increases due to additional control mechanisms
Solution Approach 1:
The patent makes the driver circuit multi-functional by integrating both the driver function and the output resistance control function into a single circuit block. The driver circuit simultaneously performs signal driving and resistance modulation, eliminating the need for separate control mechanisms. This universal design achieves high-speed performance while avoiding the complexity increase that would result from adding dedicated control circuits.
Data Source
AI summary
A semiconductor device and a method for operating the semiconductor device are provided. The semiconductor device includes a calibration device, an adjustment device and a driver. The calibration device is configured to continuously generate a first signal including a first number of bits. The adjustment device is configured to continuously receive the first signal and generate a second signal according to the last two bits of the first signal The second signal includes a second number of bits, and the second number is different from the first number. The driver is electrically coupled to the adjustment device, wherein an output resistance of the driver is controllable in response to the second signal.