AN 967: Multiple Device Synchronization in Digital Phased Array System

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ID 734485
Date 12/15/2023
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. Digital Phased Array Synchronization 3. Multiple Device Synchronization in DPA System 4. Test Result 5. Conclusion 6. Document Revision History for AN 967: Multiple Device Synchronization in Digital Phased Array System A. Appendix
3. Multiple Device Synchronization in DPA System x
3.1. JESD204(A/B/C) Interface 3.2. Clock/SYSREF Scheme 3.3. FPGA Design Synchronization 3.4. Data Exchange between FPGA Devices 3.5. Event Trigger Synchronization
3.2. Clock/SYSREF Scheme x
3.2.1. clk_ref 3.2.2. clk_dev and SYSREF 3.2.3. SYSREF Capture
3.3. FPGA Design Synchronization x
3.3.1. Data and SYSREF Clock Domain Crossing 3.3.2. Data Transformation when Clock Domain Crossing
3.5. Event Trigger Synchronization x
3.5.1. SYSREF Distribution
A. Appendix x
A.1. FPGA I/O Timing Constraints for SYSREF
A.1. FPGA I/O Timing Constraints for SYSREF x
A.1.1. Source-Synchronous Interface Timing Constraints A.1.2. SYSREF I/O Timing Closure
A.1.2. SYSREF I/O Timing Closure x
A.1.2.1. Adjust Input Delay Chain Value A.1.2.2. Using PLL to Adjust clk_dev Phase A.1.2.3. Place First SYSREF Capture Register in IOE
1. Introduction
2. Digital Phased Array Synchronization
3. Multiple Device Synchronization in DPA System
4. Test Result
5. Conclusion
6. Document Revision History for AN 967: Multiple Device Synchronization in Digital Phased Array System
A. Appendix

3.3. FPGA Design Synchronization

JESD204B/C subclass 1 guarantees the multiple ADCs’ data arrive at the FPGA device synchronously.

This section describes the FPGA design synchronization which is in part III of the example shown in figure Multiple Device Synchronization in DPA System in Digital Phased Array Synchronization.


Section Content
Data and SYSREF Clock Domain Crossing
Data Transformation when Clock Domain Crossing

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