GTS JESD204B IP User Guide

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ID 832100
Date 10/31/2025
Public
Document Table of Contents
Document Table of Contents x
1. GTS JESD204B IP Quick Reference 2. About the GTS JESD204B IP 3. Getting Started 4. GTS JESD204B IP Functional Description 5. GTS JESD204B IP Deterministic Latency Implementation Guidelines 6. GTS JESD204B IP Debug Guidelines 7. Document Revision History for the GTS JESD204B User Guide
2. About the GTS JESD204B IP x
2.1. Release Information 2.2. Device Family Support 2.3. Datapath Modes 2.4. IP Variation 2.5. GTS JESD204B IP Configuration 2.6. Channel Bonding 2.7. Performance and Resource Utilization
3. Getting Started x
3.1. Introduction to IP Cores 3.2. Installing and Licensing IP Cores 3.3. Altera® FPGA IP Evaluation Mode 3.4. Upgrading IP Cores 3.5. IP Catalog and Parameter Editor 3.6. Design Walkthrough 3.7. GTS JESD204B IP Design Considerations 3.8. GTS JESD204B IP Parameters 3.9. Analog Parameter Settings 3.10. GTS JESD204B IP Component Files
3.6. Design Walkthrough x
3.6.1. Creating a New Quartus® Prime Project 3.6.2. Parameterizing and Generating the IP 3.6.3. Compiling the GTS JESD204B IP Core Design 3.6.4. Programming an FPGA Device
3.7. GTS JESD204B IP Design Considerations x
3.7.1. Integrating the GTS JESD204B IP in Platform Designer 3.7.2. Pin Assignments 3.7.3. Configuring the GTS Reset Sequencer IP 3.7.4. REFCLK Recovery (CLK RX)
4. GTS JESD204B IP Functional Description x
4.1. Transmitter 4.2. Receiver 4.3. Dual Simplex Support 4.4. Operation 4.5. Clocking Scheme 4.6. Reset Scheme 4.7. Signals 4.8. Registers
4.1. Transmitter x
4.1.1. TX Data Link Layer 4.1.2. TX PHY Layer
4.1.1. TX Data Link Layer x
4.1.1.1. TX CGS 4.1.1.2. TX ILAS 4.1.1.3. User Data Phase
4.2. Receiver x
4.2.1. RX Data Link Layer 4.2.2. RX PHY Layer
4.2.1. RX Data Link Layer x
4.2.1.1. RX CGS 4.2.1.2. Frame Synchronization 4.2.1.3. Frame Alignment 4.2.1.4. Lane Alignment 4.2.1.5. ILAS Data 4.2.1.6. Initial Lane Synchronization
4.4. Operation x
4.4.1. Operating Modes 4.4.2. Scrambler/Descrambler 4.4.3. SYNC_N Signal 4.4.4. Link Reinitialization 4.4.5. Link Startup Sequence 4.4.6. Error Reporting Through SYNC_N Signal
4.4.1. Operating Modes x
4.4.1.1. Subclass 0 Operating Mode 4.4.1.2. Subclass 1 Operating Mode 4.4.1.3. Subclass 2 Operating Mode
4.5. Clocking Scheme x
4.5.1. Device Clock 4.5.2. Link Clock 4.5.3. Local MultiFrame Clock 4.5.4. Clock Correlation 4.5.5. GTS Reset Sequencer IP Clock 4.5.6. HVIO PLL Clocking Mode
4.6. Reset Scheme x
4.6.1. Reset Sequence 4.6.2. TX Reset Entry and Exit Sequence 4.6.3. RX Reset Entry and Exit Sequence
4.7. Signals x
4.7.1. Transmitter Signals 4.7.2. Receiver Signals
4.8. Registers x
4.8.1. Register Access Type Convention 4.8.2. Register Map and Definition 4.8.3. Transmitter Registers 4.8.4. Receiver Registers
5. GTS JESD204B IP Deterministic Latency Implementation Guidelines x
5.1. Constraining Incoming SYSREF Signal 5.2. Programmable RBD Offset 5.3. Programmable LMFC Offset 5.4. Maintaining Deterministic Latency during Link Reinitialization
6. GTS JESD204B IP Debug Guidelines x
6.1. Clocking Scheme 6.2. GTS JESD204B Parameters 6.3. SPI Programming 6.4. Converter and FPGA Operating Conditions 6.5. Signal Polarity and FPGA Pin Assignment 6.6. Transceiver Toolkit
1. GTS JESD204B IP Quick Reference
2. About the GTS JESD204B IP
3. Getting Started
4. GTS JESD204B IP Functional Description
5. GTS JESD204B IP Deterministic Latency Implementation Guidelines
6. GTS JESD204B IP Debug Guidelines
7. Document Revision History for the GTS JESD204B User Guide

6.4. Converter and FPGA Operating Conditions

The transceiver channels at the converter and FPGA are bounded by minimum and maximum data rate requirements. Always check the most updated device data sheet for this info. For example, the Agilex™ 5/ Agilex™ 3 device has a minimum data rate of 2 Gbps.

Ensure that the sampling rate of the converter is within the minimum and maximum requirements. For example, the ADC AD9250 has a minimum sampling rate of 40 Msps. For L = 2, M = 1 configuration, the minimum data rate of this ADC is calculated this way:



The minimum data rate for the JESD204B link is effectively 2 Gbps.

Check these items:

  • Reduce the data rate or sampling clock frequency if your targeted operating requirement does not work.
  • Verify the minimum and maximum data rate requirements in the device manufacturer's data sheet.
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