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

1.3 Key Features

Table 1. Key Features

Cascade Radar RF Board
4x AWRx 76-81GHz Radar SoC Integrated VCO, LO distribution, PA, LNA, ADC, 3 TX and 4 RX ARM MCU R4 Controller
AWRx RF/LO Peripherals
12x TX, 16x RX Antennas
  • 12 total transmitters across all 4 AWRx devices
  • 16 total receivers across all 4 AWRx devices
  • 86 non-overlapping Azimuth virtual array (lambda/2)
  • 4 minimum redundancy array (MRA) Elevation
Embedded Antenna
  • 4-element series-fed patch antenna, 12dBi
  • ± 60 deg Azimuth 3dB
  • ± 30 deg Elevation 3dB
20 GHz LO Star-Network Distribution 2x Wilkinson power dividers fed by the Master AWRx device LO output to Master and Slave AWRx devices
AWR Digital Peripherals
CSI2.0 4-lane 600Mbps/Lane for 2.4 Gbps ADC IF data per device
QSPI Flash 16 Mbit QSPI flash for AWR firmware updates/deveopment
Serial Peripherals SPI, I2C, UART, GPIO
System Temperature TMP112 I2C Temperature Sensors
Power
Radar Power Management IC (PMIC) Solution
  • 2x LP87524P Quad-Channel, Integrated FET, Buck Converters, secondary LC filtering solution powering all 4 AWRx devices
  • TPS73733 LDO generating 3.3V system power