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

Device Information

The high-frequency capability and extremely low jitter of this device, makes a great design to clock precision, high-frequency data converters without degradation to the signal-to-noise ratio. Each of the four high-frequency clock outputs, and additional LOGICLK output with larger divider range, is paired with a SYSREF output clock signal. The SYSREF signal for JESD interfaces can either be internally generated or passed in as an input and re-clocked to the device clocks. For data converter clocking applications, to have the jitter of the clock be less than the aperture jitter of the data converter is critical. In applications where more than four data converters must be clocked, a variety of cascading architectures can be developed using multiple devices to distribute all the high-frequency clocks and SYSREF signals required. With low jitter and noise floor, this device combined with an ultra-low noise reference clock source is an exemplary design for clocking data converters, especially when sampling above 3GHz.