SWRS314A January   2024  – November 2024 AWR2544

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
    1. 3.1 Functional Block Diagram
  5. 4 Device Comparison
  6. 5 Related Products
  7. 6 Pin Configurations and Functions
    1. 6.1 Pin Diagram
    2. 6.2 Pin Attributes
    3. 6.3 Signal Descriptions - Digital
    4. 6.4 Signal Descriptions - Analog
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Power-On Hours (POH)
    4. 7.4  Recommended Operating Conditions
    5. 7.5  VPP Specifications for One-Time Programmable (OTP) eFuses
      1. 7.5.1 Recommended Operating Conditions for OTP eFuse Programming
      2. 7.5.2 Hardware Requirements
      3. 7.5.3 Impact to Your Hardware Warranty
    6. 7.6  Power Supply Specifications
    7. 7.7  Power Consumption Summary
    8. 7.8  RF Specifications
    9. 7.9  Thermal Resistance Characteristics
    10. 7.10 Power Supply Sequencing and Reset Timing
    11. 7.11 Input Clocks and Oscillators
      1. 7.11.1 Clock Specifications
    12. 7.12 Peripheral Information
      1. 7.12.1 QSPI Flash Memory Peripheral
        1. 7.12.1.1 QSPI Timing Conditions
        2. 7.12.1.2 QSPI Timing Requirements #GUID-C38B9713-DC57-4B3B-8AFF-A79AF70E5A5A/GUID-97D19708-D87E-443B-9ADF-1760CFEF6F4C #GUID-C38B9713-DC57-4B3B-8AFF-A79AF70E5A5A/GUID-0A61EEC9-2B95-4C27-B219-18D27C8F9430
        3. 7.12.1.3 QSPI Switching Characteristics #GUID-D1480E86-4079-4A44-A68A-26C2D9F4506B/T4362547-64 #GUID-D1480E86-4079-4A44-A68A-26C2D9F4506B/T4362547-65
      2. 7.12.2 Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 7.12.2.1 MibSPI Peripheral Description
        2. 7.12.2.2 MibSPI Transmit and Receive RAM Organization
          1. 7.12.2.2.1 SPI Timing Conditions
          2. 7.12.2.2.2 SPI Controller Mode Switching Parameters (CLOCK PHASE = 0, SPICLK = output, SPISIMO = output, and SPISOMI = input) #GUID-3DD8619F-41DB-47CF-9AF7-5916CFF97E61/T4362547-236 #GUID-3DD8619F-41DB-47CF-9AF7-5916CFF97E61/T4362547-237 #GUID-3DD8619F-41DB-47CF-9AF7-5916CFF97E61/T4362547-238
          3. 7.12.2.2.3 SPI Controller Mode Switching Parameters (CLOCK PHASE = 1, SPICLK = output, SPISIMO = output, and SPISOMI = input) #GUID-220CE6B8-D17E-48AF-BF69-AAEC97D55C95/T4362547-244 #GUID-220CE6B8-D17E-48AF-BF69-AAEC97D55C95/T4362547-245 #GUID-220CE6B8-D17E-48AF-BF69-AAEC97D55C95/T4362547-246
        3. 7.12.2.3 SPI Peripheral Mode I/O Timings
          1. 7.12.2.3.1 SPI Peripheral Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output) #GUID-BF2B230C-8F03-4C6A-A240-6DFD0CEC87C8/T4362547-70 #GUID-BF2B230C-8F03-4C6A-A240-6DFD0CEC87C8/T4362547-71 #GUID-BF2B230C-8F03-4C6A-A240-6DFD0CEC87C8/T4362547-73
      3. 7.12.3 Ethernet Switch (RGMII/RMII/MII) Peripheral
        1. 7.12.3.1  RGMII/RMII/MII Timing Conditions
        2. 7.12.3.2  RGMII Transmit Clock Switching Characteristics
        3. 7.12.3.3  RGMII Transmit Data and Control Switching Characteristics
        4. 7.12.3.4  RGMII Receive Clock Timing Requirements
        5. 7.12.3.5  RGMII Receive Data and Control Timing Requirements
        6. 7.12.3.6  RMII Transmit Clock Switching Characteristics
        7. 7.12.3.7  RMII Transmit Data and Control Switching Characteristics
        8. 7.12.3.8  RMII Receive Clock Timing Requirements
        9. 7.12.3.9  RMII Receive Data and Control Timing Requirements
        10. 7.12.3.10 MII Transmit Switching Characteristics
        11. 7.12.3.11 MII Receive Clock Timing Requirements
        12. 7.12.3.12 MII Receive Timing Requirements
        13. 7.12.3.13 MII Transmit Clock Timing Requirements
        14. 7.12.3.14 MDIO Interface Timings
      4. 7.12.4 LVDS Instrumentation and Measurement Peripheral
        1. 7.12.4.1 LVDS Interface Configuration
        2. 7.12.4.2 LVDS Interface Timings
      5. 7.12.5 UART Peripheral
        1. 7.12.5.1 SCI Timing Requirements
      6. 7.12.6 Inter-Integrated Circuit Interface (I2C)
        1. 7.12.6.1 I2C Timing Requirements #GUID-5F6D5D17-1161-44B3-ABD1-283215937B93/T4362547-185
      7. 7.12.7 Enhanced Pulse-Width Modulator (ePWM)
      8. 7.12.8 General-Purpose Input/Output
        1. 7.12.8.1 Switching Characteristics for Output Timing versus Load Capacitance (CL) #GUID-918A19D2-41ED-481C-96AE-E1C69B8B3446/T4362547-45 #GUID-918A19D2-41ED-481C-96AE-E1C69B8B3446/T4362547-50
    13. 7.13 Emulation and Debug
      1. 7.13.1 Emulation and Debug Description
      2. 7.13.2 JTAG Interface
        1. 7.13.2.1 Timing Requirements for IEEE 1149.1 JTAG
        2. 7.13.2.2 Switching Characteristics for IEEE 1149.1 JTAG
      3. 7.13.3 ETM Trace Interface
        1. 7.13.3.1 ETM TRACE Timing Requirements
        2. 7.13.3.2 ETM TRACE Switching Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Subsystems
      1. 8.3.1 RF and Analog Subsystem
        1. 8.3.1.1 RF Clock Subsystem
        2. 8.3.1.2 Transmit Subsystem
        3. 8.3.1.3 Receive Subsystem
      2. 8.3.2 Processor Subsystem
      3. 8.3.3 Automotive Interfaces
    4. 8.4 Other Subsystems
      1. 8.4.1 Hardware Accelerator Subsystem
      2. 8.4.2 Security – Hardware Security Module
      3. 8.4.3 ADC Channels (Service) for User Application
  10. 9 Monitoring and Diagnostics
    1. 9.1 Monitoring and Diagnostic Mechanisms
  11. 10Applications, Implementation, and Layout
    1. 10.1 Application Information
    2. 10.2 Short and Medium Range Radar
    3. 10.3 Reference Schematic
  12. 11Device and Documentation Support
    1. 11.1 Device Support
    2. 11.2 Device Nomenclature
    3. 11.3 Tools and Software
    4. 11.4 Documentation support
    5. 11.5 Support Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • AMQ|248
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.6 Power Supply Specifications

Table 7-1 describes the four required power rails which must be provided to the AWR2544 from an external power supply. In the case when 1.8V LVCMOS IO is utilized, VIOIN is powered from a 1.8V rail and the 3.3V rail can be omitted, so only three rails must be provided. Also, depending on the power topology utilized, additional power supply filtering can be required for the RF 1.0V and baseband, clock and VCO 1.8V supplies to meet the required ripple specifications. This additional filtering results in separate supply power nets being generated from these four basic rails.

Table 7-1 Power Supply Rails Characteristics
SUPPLY VOLTAGEDEVICE BLOCKS POWERED FROM THE SUPPLYDEVICE POWER NETS
1.8 VSynthesizer and APLL VCOs, crystal oscillator, IF Amplifier stages, ADC, CSI2, LVDS, LVCMOS IOInput: VDDA_18VCO, VDDA_18CLK, VDDA_18PM, VDDA_18BB, VIOIN_18CSI, VIOIN_18LVDS, VIOIN_18
LDO Output: VOUT_14SYNTH, VOUT_14APLL
1.0 VPower Amplifier, Low Noise Amplifier, Mixers and LO DistributionInput: VDDA_10RF2, VDDA_10RF1
3.3 V (or 1.8 V for 1.8 V I/O mode)LVCMOS IOVIOIN
1.2 VCore Digital and SRAMVDD, VDD_SRAM, VNWA
1.7 VProgramming OTP eFuse (For secure devices)VPP

The 1.0 V and 1.8 V power supply ripple specifications are mentioned in Table 7-2 The spur and ripple levels have a dB to dB relationship, for example, a 1dB increase in supply ripple leads to an approximately 1dB increase in spur level. Values quoted are rms levels for a sinusoidal input applied at the specified frequency.

Table 7-2 Ripple Specifications
FREQUENCY (kHz)Spur Level (dBc)RF RAILVCO/IF RAIL
1 V (µVRMS)1.8 V (mVRMS)
10-852210.99
100-9581.42
200-9860.73
500-10240.45
1000-10530.30
2000-10530.08
5000-10530.06
10000-10530.06
15000-10520.04
20000-10520.04

Power Supply Guidelines

The LP8772-Q1 Power Management IC (PMIC) is recommended for an integrated AWR2544 power solution. This cost and space optimized solution is designed to power the AWR2544 radar sensor and its principal peripherals.

List of benefits when using LP8772-Q1 PMIC to power AWR2544:

  1. Full device performance entitlement as validated on TI Evaluation boards
  2. Noise/Ripple performance that meets AWR noise/ripple performance specification
    1. LP8772-Q1 has high switching frequency switching outside IF band & avoiding the LDOs helps with thermal performance at the system level and bypasses the need for 2nd stage LC filters to suppress the ripple and filter out the spurs.
    2. Thermal dissipation does not affect RF performance