SNAU182A March   2021  – May 2022

 

  1.   Trademarks
  2. 1LMX2571EPEVM Evaluation Module
    1. 1.1 Evaluation Module Contents
    2. 1.2 Evaluation Setup Requirement
    3. 1.3 Resources
  3. 2Setup
    1. 2.1 Connection Diagram
    2. 2.2 Power Supply
    3. 2.3 Reference Clock
    4. 2.4 RF Output
    5. 2.5 Programming
    6. 2.6 Evaluation Software
    7. 2.7 EVM Strap Options
      1. 2.7.1 J11 Header
      2. 2.7.2 J12 Header
  4. 3Typical Measurement
    1. 3.1 Default Configuration
      1. 3.1.1 Loop Filter
      2. 3.1.2 Typical Output
    2. 3.2 Additional Tests
      1. 3.2.1 FSK Modulation
      2. 3.2.2 Register Readback
  5. 4Schematic
  6. 5Board Construction
    1. 5.1 PCB Layer Stack-Up
    2. 5.2 PCB Layout
  7. 6Bill of Materials
  8. 7Troubleshooting Guide
  9.   A Using Different Reference Clock
  10.   B Reference PRO
    1.     B.1 Output Frequency Selection
    2.     B.2 Output Format Selection
    3.     B.3 Typical Output Characteristics
    4.     B.4 Firmware Update
  11.   C Revision History

B.1 Output Frequency Selection

Jumpers FS1 and FS0 are used to set the output frequency.

Table 9-1 Reference PRO Output Frequency Selection
FS1 FS0 OUTPUT FREQUENCY (MHz)
GND GND 100
GND NC 312.5
GND Vdd 125
NC GND 106.25
NC NC 156.25
NC Vdd 212.5
Vdd GND 62.5