SWRS289 october   2021 IWR2243

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Block Diagram
  6. 5 Revision History
  7. 6 Device Comparison
    1. 6.1 Related Products
  8. 7 Terminal Configuration and Functions
    1. 7.1 Pin Diagram
    2. 7.2 Signal Descriptions
  9. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Power-On Hours (POH)
    4. 8.4 Recommended Operating Conditions
    5. 8.5 Power Supply Specifications
    6. 8.6 Power Consumption Summary
    7. 8.7 RF Specification
    8. 8.8 Thermal Resistance Characteristics for FCBGA Package [ABL0161]
    9. 8.9 Timing and Switching Characteristics
      1. 8.9.1 Power Supply Sequencing and Reset Timing
      2. 8.9.2 Synchronized Frame Triggering
      3. 8.9.3 Input Clocks and Oscillators
        1. 8.9.3.1 Clock Specifications
      4. 8.9.4 Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 8.9.4.1 Peripheral Description
          1. 8.9.4.1.1 SPI Timing Conditions
          2. 8.9.4.1.2 SPI Peripheral Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output)
          3. 8.9.4.1.3 SPI Peripheral Mode Timing Requirements (SPICLK = input, SPISIMO = input, and SPISOMI = output)
        2. 8.9.4.2 Typical Interface Protocol Diagram (Peripheral Mode)
      5. 8.9.5 Inter-Integrated Circuit Interface (I2C)
        1. 8.9.5.1 I2C Timing Requirements
      6. 8.9.6 Quad Serial Peripheral Interface (QSPI)
        1. 8.9.6.1 QSPI Timing Conditions
        2. 8.9.6.2 Timing Requirements for QSPI Input (Read) Timings
        3. 8.9.6.3 QSPI Switching Characteristics
      7. 8.9.7 LVDS Interface Configuration
        1. 8.9.7.1 LVDS Interface Timings
      8. 8.9.8 General-Purpose Input/Output
        1. 8.9.8.1 Switching Characteristics for Output Timing versus Load Capacitance (CL)
      9. 8.9.9 Camera Serial Interface (CSI)
        1. 8.9.9.1 CSI Switching Characteristics
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Subsystems
      1. 9.3.1 RF and Analog Subsystem
        1. 9.3.1.1 Clock Subsystem
        2. 9.3.1.2 Transmit Subsystem
        3. 9.3.1.3 Receive Subsystem
      2. 9.3.2 Host Interface
    4. 9.4 Other Subsystems
      1. 9.4.1 ADC Data Format Over CSI2 Interface
      2. 9.4.2 ADC Channels (Service) for User Application
        1. 9.4.2.1 GPADC Parameters
  11. 10Monitoring and Diagnostic Mechanisms
  12. 11Applications, Implementation, and Layout
    1. 11.1 Application Information
    2. 11.2 Imaging Radar using Cascade Configuration
    3. 11.3 Reference Schematic
    4. 11.4 Layout
      1. 11.4.1 Layout Guidelines
      2. 11.4.2 Stackup Details
  13. 12Device and Documentation Support
    1. 12.1 Device Nomenclature
    2. 12.2 Tools and Software
    3. 12.3 Documentation Support
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Export Control Notice
    8. 12.8 Glossary
  14. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Packaging Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.3.1.3 Receive Subsystem

The IWR2243 receive subsystem consists of four parallel channels. A single receive channel consists of an LNA, mixer, IF filtering, ADC conversion, and decimation. All four receive channels can be operational at the same time an individual power-down option is also available for system optimization.

Unlike conventional real-only receivers, the IWR2243 device supports a complex baseband architecture, which uses quadrature mixer and dual IF and ADC chains to provide complex I and Q outputs for each receiver channel. The IWR2243 is targeted for fast chirp systems. The band-pass IF chain has configurable lower cutoff frequencies above 175 kHz and can support bandwidths up to 20 MHz.

Figure 9-3 describes the receive subsystem.

GUID-EB2E128C-7561-439B-BD3D-102E6CAA72A1-low.gifFigure 9-3 Receive Subsystem (Per Channel)