SWRU553A September   2019  – February 2020 AWR1243 , AWR2243

 

  1.   AWRx Cascaded Radar RF Evaluation Module (MMWCAS-RF-EVM)
    1.     Trademarks
    2. 1 Getting Started
      1. 1.1 Introduction
      2. 1.2 EVM Revisions
      3. 1.3 Key Features
      4. 1.4 What is Included
        1. 1.4.1 Kit Hardware Contents
        2. 1.4.2 mmWave Studio and Matlab Post Processing
    3. 2 Hardware Description
      1. 2.1 Block Diagram
      2. 2.2 Attaching the MMWAVCAS-RF-EVM to the MMWAVCAS-DSP-EVM
      3. 2.3 Power Status LED Indicators
      4. 2.4 Reset LED Indicators
      5. 2.5 Connectors
        1. 2.5.1 Host Board Connectors(J4, J5)
        2. 2.5.2 Bench Power Connector(J6)
        3. 2.5.3 20 GHz LO Debug Connector (J3)
        4. 2.5.4 AWR OSC_CLKOUT Debug Header (J2)
        5. 2.5.5 AWR Debug Headers (J1_1, J1_2, J1_3, J1_4)
      6. 2.6 Antennas
        1. 2.6.1 TX and RX Antenna Arrays
        2. 2.6.2 PCB Antenna Element
          1. 2.6.2.1 RX Antenna Element Performance
          2. 2.6.2.2 TX Antenna Element Performance
        3. 2.6.3 Virtual Antenna Array
    4. 3 Design Files and Software Tools
      1. 3.1 Hardware Collateral
      2. 3.2 Software, Development Tools, and Example Codes for MMWCAS-RF-EVM
      3. 3.3 Critical AWRx Setup Notes
        1. 3.3.1 LDO Bypass Requirement
    5. 4 PCB Dimensions and Mounting Information
    6. 5 PCB Storage and Handling Recommendations
    7. 6 References
    8. 7 Regulatory Information
  2.   Revision History

2.3 Power Status LED Indicators

The MMWAVCAS-RF-EVM board provides two LED for visually evaluating 5.0 V and 3.3 V system power status. The 5.0 V LED will be enabled as soon as 5 V power is provided to the system through either the primary host connectors (J4, J5) or through the bench power connector J6. The 3.3 V LED will be enabled as soon as the TPS73733 LDO (U5) output is enabled. TPS73733 3.3 V power is enabled through the GPIO2 output of LP87524P PMIC #1 (U3) as the last stage of the PMIC power on sequence.

swru553-cascade-rf-design-spec-diagrams-power-led-callouts.gifFigure 6. MMWAVCAS-RF-EVM Power Status LED Indicators

Power Satus LED Callouts:

  1. 5 V Power On LED (DS1) - Red LED active when 5 V power is available to MMWAVCAS-RF-EVM board
  2. 3.3 V Power On LED (DS3) - Amber LED active when TPS73733 LDO (U5) 3.3V output is enabled