Adaptive Equalizer Circuit with Shared Low-Pass Feedback
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Solution Overview
Problem
Conventional receiver circuits with independent low-frequency feedback and adaptive circuits consume high power and occupy large circuit areas due to the inclusion of low pass filters.
Innovation Solution
An adaptive equalizer circuit that integrates an amplifier circuit with an adaptive circuit, where the amplifier adjusts low-frequency response and high-frequency gain based on feedback and compensation signals, sharing a low pass filter to reduce power consumption and circuit area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If independent low-frequency feedback circuit and adaptive circuit are used, then compensation capability for high-frequency and low-frequency components is improved, but power consumption increases
Solution Approach 1:
The patent combines the low-frequency feedback circuit and adaptive circuit into a single integrated circuit that processes both high-frequency and low-frequency components. By merging these previously independent circuits, the patent reduces the total number of low-pass filters from two to one, thereby reducing power consumption while maintaining compensation capability for both frequency ranges.
Solution Approach 2:
The integrated circuit is designed to perform multiple functions: it provides both low-frequency feedback and adaptive equalization within a single circuit structure. This multi-functional design allows the circuit to handle high-frequency and low-frequency compensation simultaneously, eliminating the need for separate dedicated circuits and reducing overall power consumption.
2Reliability
If independent low-frequency feedback circuit and adaptive circuit are used, then compensation capability for high-frequency and low-frequency components is improved, but circuit area increases
Solution Approach 1:
The patent merges the low-frequency feedback circuit and adaptive circuit into a single integrated structure, reducing the total circuit area. By combining these circuits and sharing common components such as the low-pass filter, the patent eliminates redundant circuitry and reduces the overall area occupied in the receiver.
Solution Approach 2:
The integrated circuit performs multiple functions including low-frequency feedback, adaptive equalization, and signal filtering within a single circuit block. This multi-functional design reduces the total circuit area by eliminating the need for separate dedicated circuits for each function.
3Reliability
If separate low pass filters are included in low-frequency feedback circuit and adaptive circuit, then frequency compensation is improved, but circuit area and power consumption increase
Solution Approach 1:
The patent combines two separate low-pass filters into a single shared low-pass filter that serves both the low-frequency feedback path and the adaptive circuit. This merging reduces the circuit area and power consumption associated with having two separate filter implementations while maintaining the frequency compensation functionality for both circuits.
Data Source
AI summary
An adaptive equalizer circuit and an operation method thereof are provided. The adaptive equalizer circuit includes an amplifier circuit and an adaptive circuit. The amplifier circuit is coupled to the adaptive circuit. The amplifier circuit receives an input signal. The amplifier circuit provides a compensation signal to the adaptive circuit based on the input signal. The adaptive circuit provides a compensation setting value and a feedback signal to the amplifier circuit based on the compensation signal. A low-frequency response and a high-frequency gain of the amplifier circuit are adjusted based on the compensation setting value and the feedback signal respectively.