SNAU298A October   2023  – October 2024

 

  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. 2EVM Quick Start
    1. 2.1 Hardware Setup
    2. 2.2 Software Setup
      1. 2.2.1 TICS Pro GUI Setup
      2. 2.2.2 Power Up Sequence
    3. 2.3 EVM Measurements
  8. 3Hardware
    1. 3.1 Device Operation Modes
    2. 3.2 EVM Configuration
      1. 3.2.1 Power Supply
      2. 3.2.2 Logic Input and Outputs
      3. 3.2.3 Clock Input
      4. 3.2.4 Clock Outputs
      5. 3.2.5 Status Outputs, LEDs, and Test Points
  9. 4Software
    1. 4.1 TICS Pro LMKDB1120 Software
      1. 4.1.1 Input
        1. 4.1.1.1 Input Interface Type
        2. 4.1.1.2 Input Termination
        3. 4.1.1.3 Automatic Output Disable (AOD)
        4. 4.1.1.4 LOS Event
        5. 4.1.1.5 LOS Readback
      2. 4.1.2 Device Info and EVM Setup
        1. 4.1.2.1 Device Info
        2. 4.1.2.2 EVM Setup
        3. 4.1.2.3 SMBus
      3. 4.1.3 Output
        1. 4.1.3.1 SMBus
          1. 4.1.3.1.1 Programmable Output Slew Rate Control
        2. 4.1.3.2 OE Pin Control
        3. 4.1.3.3 Side Band Interface (SBI)
  10. 5Implementation Results
    1. 5.1 Typical Phase Noise Characteristic
  11. 6Hardware Design Files
    1. 6.1 Schematics
    2. 6.2 PCB Layouts
    3. 6.3 Bill of Materials (BOM)
  12. 7Compliance Information
    1. 7.1 Compliance and Certifications
  13. 8References
  14. 9Revision History

3.2 EVM Configuration

The LMKDB1120EVM can be configured for multiple modes using on board MCU and can be powered via USB or external power supply. The following sections describes power, logic, clock input, and output interfaces on the EVM and how to configure the EVM accordingly.

Some of the key components and the reference designator are noted in Table 3-1.

Table 3-1 Key Components Reference Designator and Descriptions
Item No. Reference Designators Description
1 U1A LMKDB1120
2A J4 External VDD option through a SMA Port.
2B JP17 Jumper header to select between external or onboard 3.3V USB supply option.
3 J2, J3 SMA ports for clock input (CLKIN_P, CLKIN_N).
4 J8 to J47 SMA ports for clock outputs (CLKXX_P, CLKXX_N).
5 JP25, JP26 SADR0_tri and SADR1_tri jumper header option to select different address as defined in Table 3-6.
6 JP22 SBEN pin header jumper to enable or disable SBI interface during power-up.
7 JP23 TCA_RESET pin header jumper for Input / Output (IO) Expander. TCA_RESET pin header jumper needs to be connected to pull-up for proper operation. Default configuration is set to pull-up.
8 JP24 CLKPWRGD_PD# pin header jumper to enable or disable the LMKDB1120.
11A J48 SBI Connector header jumper for daisy chain option.
11B J49 SBI_PRIMARY header jumper option to disable the U3A, U3B, U3C, U3D buffer part on the EVM.
12 U2 USB power option LDO.
13 U3A, U3B, U3C, U3D Hi-Z buffer part used on SBI lines for daisy chain configuration.
14 U4 MUX part to choose between MCU and IO expander option on OE#5, OE#6, and OE#10 pins.
15 U5 IO Expander used for all OE# pin controls.
16 U8 MSP430F5529IPN MCU.