SNAU294 May   2024 LMX1205

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Jumper Information
    2. 2.2 Setup
      1. 2.2.1 Evaluation Setup Requirement
      2. 2.2.2 Connection Diagram
    3. 2.3 Power Requirements
    4. 2.4 Reference Clock
    5. 2.5 Output Connections
    6. 2.6 Test Points
  8. 3Software
    1. 3.1 Software Description
    2. 3.2 Software Installation
    3. 3.3 USB2ANY Interface
  9. 4Implementation Results
    1. 4.1 Buffer Mode
    2. 4.2 Divider Mode
    3. 4.3 Multiplier Mode
    4. 4.4 SYSREF Generation
  10. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  11. 6Additional Information
    1. 6.1 Trademarks

2.5 Output Connections

All CLKOUT connections are AC-coupled and can be connected directly to RF instruments with 0VDC requirements; an additional DC block is not required. The unused CLKOUT SMA connector must be terminated with a 50Ω load, or a differential connection can be used if a balun with the best frequency range is available.

Two SYSREF outputs are DC-coupled, making them easier to cascade with the SYSREF input of another LMX1205 EVM or other JESD204B device. The other two SYSREF outputs are AC-coupled.

LOGICCLK and LOGISYSREF outputs are AC-coupled and output formats are programmable. Hardware change is required to match the output format.