SNAU299
January 2024
LMX1214
1
Description
Features
Applications
5
1
Evaluation Module Overview
1.1
Introduction
1.2
Kit Contents
1.3
Specification
1.4
Device Information
2
Hardware
2.1
Evaluation Setup Requirement
2.2
Connection Diagram
2.3
Power Requirements
2.4
How to Enable Full SPI Control
2.5
Reference Clock
2.6
Output Connections
2.7
Switch Information
2.8
Default Configuration
2.9
Divider Mode Example
2.10
Hybrid Mode: SPI and Pin Mode
3
Software
3.1
Software Installation
3.2
Software Description
3.3
USB2ANY Interface
4
Implementation Results
4.1
Evaluation Setup
4.1.1
Buffer and Divider Mode
5
Hardware Design Files
5.1
Schematic
5.2
PCB Layout
5.2.1
PCB Layer Stack-Up
5.3
Bill of Materials
6
Additional Information
6.1
Troubleshooting Guide
6.1.1
General Guidance
6.1.2
If Output Is Not Seen on CLKOUT
6.1.3
If Device Features Are Not Active
6.1.4
If Divider Frequency Is Not Accurate
6.2
Trademarks
6.1.1
General Guidance
Do not make modifications to the EVM or change the default settings until after verified to be working.
Register readback requires programming MUXOUT_SEL = 1. The GUI also prompts to configure this register before attempting any readback operation.
The POR current of the LMX12 EVM is approximately 296mA with the LDOs bypassed & 456mA with LDOs enabled.
Note:
Default mode is buffer mode with all outputs enabled.
CLKIN is not available.
The power-down current of the EVM is approximately 15mA with LDOs bypassed and 33mA with LDOs enabled.