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If the Latency between the JESD204B interface in the FPGA and ADC Input is always fixed and constant, then we say that that the ADC is synchronized. Latency from the frame-based data input at the TX to the frame-based data output at the RX. Latency should be programmable and repeatable over power cycles and re-sync events.

Synchronization is required in many systems like Multi-antenna communications systems, Phased array radars, Magnetic resonance imaging etc. Most systems that require multiple synchronized signal chains also require synchronization of analog-to-digital converters (ADCs) and digital-to-analog converters (ADCs).

The Objective of Multi ADC Synchronization in a JESD204B Environment

  • Basic concept of synchronization.
  • Requirements for a JESD204B System synchronization.
  • Methods to achieve Multi Clock Synchronization.
  • Challenges faced in achieving Multi Clock Synchronization.
  • Concept of Deterministic latency in JESD204B.
  • Challenges faced in achieving the Muti ADC Synchronization.

 

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