Multi-Channel Clock Synchronization Using Feedback Delay Compensation
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Solution Overview
Problem
In multi-channel systems, synchronization of clock signals across different channels is challenging due to varying time delays, leading to potential synchronization failures that affect the normal operation of the system.
Innovation Solution
A multi-channel signal synchronization system comprising a clock signal generation module, a synchronization signal generation module, and signal receiving modules, where the clock signal generation module generates a first clock signal, which is used to create a synchronization signal that is fed back to generate a second clock signal, ensuring alignment and synchronization across all channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clock signal is transmitted to multiple channels in a multi-channel system, then the system can perform sequential logic operations, but varying time delays cause synchronization failures
Solution Approach 1:
The patent implements a feedback mechanism where the first clock signal is fed back through a feedback circuit to generate a second clock signal. This feedback loop compensates for time delay variations by adjusting the phase and timing of the second clock signal based on the actual propagation delays experienced by the first clock signal, thereby maintaining synchronization reliability across multiple channels.
Solution Approach 2:
The patent generates the second clock signal in advance using the feedback circuit before it is needed for synchronization. By preliminarily adjusting the timing characteristics of the second clock signal based on predicted or measured delays, the system proactively compensates for time delay variations, preventing synchronization failures before they occur.
2Reliability
If a synchronization signal is used to synchronize clock signals in different channels, then normal system operation can be ensured, but the synchronization operation may fail due to time delays
Solution Approach 1:
The patent merges the clock signal generation and synchronization functions into a single integrated circuit. The feedback circuit combines the first clock signal with delay compensation logic to directly generate the second clock signal, eliminating the need for separate synchronization circuits and reducing overall system complexity while maintaining synchronization reliability.
Solution Approach 2:
The feedback circuit acts as an intermediary between the first clock signal source and the second clock signal destination. It mediates the timing relationship by introducing controlled delays and phase adjustments, ensuring that the second clock signal is properly synchronized with the first clock signal without requiring complex external synchronization mechanisms.
3Manufacturing precision
If the clock signal generation module generates a second clock signal based on the synchronization signal, then signal receiving modules can be synchronized, but setup time and hold time requirements must be met
Solution Approach 1:
The feedback circuit dynamically adjusts timing parameters such as phase shift and delay duration to optimize the relationship between the first and second clock signals. By changing these temporal parameters, the circuit ensures that setup time and hold time requirements are met while achieving precise synchronization, balancing timing constraints with synchronization accuracy.
Data Source
AI summary
Embodiments of the present application provide a multi-channel signal synchronization system, circuit, and method. The multi-channel signal synchronization system comprises a clock signal generation module, a synchronization signal generation module, and signal receiving modules; the clock signal generation module is configured to generate a first clock signal; the synchronization signal generation module is configured to generate a synchronization signal based on the first clock signal and transmit the synchronization signal to the clock signal generation module; the clock signal generation module generates second clock signals on the basis of the synchronization signal and transmits the second clock signals to the signal receiving modules; the synchronization signal generation module transmits the synchronization signal to the signal receiving modules.