Analysis on multiple-component synchronization of ultra-fast time-interleaved analog-to-digital conversion systems...

Area of Science:

• Electrical Engineering
• Signal Processing
• Instrumentation

Background:

• Time-interleaved analog-to-digital converters (TIADC) are crucial for high sampling rate acquisition systems.
• Reset operations in ultra-fast TIADC systems face synchronization challenges due to data sequence indeterminacy.
• Multiple-component synchronization (MCS) is a critical barrier for high-speed acquisition systems.

Purpose of the Study:

• To clarify the root cause of MCS problems in TIADC systems related to reset operations.
• To propose a novel and reliable hardware solution for precise reset signal conditioning.
• To demonstrate the feasibility and effectiveness of the proposed solution in ultra-fast TIADC systems.

Main Methods:

• Analysis of MCS issues arising from reset operations in TIADC systems.
• Development of a hardware solution focusing on precise reset signal conditioning.
• Detailed presentation of the designing scheme and debugging procedures on a generalized platform.
• Parametric materialization and testing verification in a 20 GSPS TIADC system.

Main Results:

• The proposed hardware solution effectively addresses the MCS problem in TIADC systems.
• The method ensures the combined determinacy of multiple groups of sampled data.
• The solution was successfully demonstrated in a 20 GSPS TIADC system composed of four 5 GSPS ADC components.
• The approach utilizes simple logic components, offering flexibility and ease of implementation.

Conclusions:

• The developed hardware solution is feasible and effective for solving MCS problems in TIADC systems.
• The proposed method enhances the reliability of high-speed acquisition systems by ensuring data determinacy.
• This work contributes to the development of congeneric systems and instruments requiring precise MCS.