SPRADM7 March   2025 AWR2944 , IWR2944

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Definitions, Abbreviations, Acronyms
  5. 2Introduction
  6. 3Device Architecture Overview
  7. 4Key Power Consuming Blocks In AWR2944 Device
  8. 5Fundamental Power Optimization Strategies
  9. 6SDK-based Power Optimization methods for AWR2944 Device
    1. 6.1 Typical Radar Measurement Cycle
    2. 6.2 Power States During a Typical Radar Measurement Cycle
    3. 6.3 Power Reduction Techniques Implemented In Mililmeter Wave Demo
  10. 7Equipment Needed For Evaluation
  11. 8Summary
  12. 9References

4 Key Power Consuming Blocks In AWR2944 Device

The AWR2944 device, a highly integrated single-chip radar sensor, incorporates several key power-consuming elements that are essential for advanced signal processing and transmission capabilities.

The main power-consuming components are as follows:

  1. Transmitter (Tx) and Receiver (Rx) or Radar Front End: These blocks are responsible for generating and processing radar signals, and consume significant power due to high-frequency operations.
  2. Digital signal processing subsystem (DSP SS): The C66x DSP core handles complex computations required for radar signal processing. The C66x DSP is one of the primary power consumers due to high processing capabilities.
  3. Radar Hardware Accelerator (HWA): This component accelerates operations like Fast Fourier Transform (FFT), log magnitude calculations, and memory compression, which are essential for radar signal processing.
  4. Arm® Cortex®-R5F Core: This core supports lock-step operation and is used for control and configuration tasks. This core also contributes significantly to the overall power consumption.
  5. Phase-Locked Loop (PLL): The integrated PLL is used for frequency synthesis and contributes to power consumption, especially during signal transmission.
  6. Analog-to-Digital Converters (ADCs): Multiple ADC channels are used to convert analog radar signals into digital form for processing. These converters also consume a considerable amount of power.

Understanding these components can help optimize power consumption and enhance the overall efficiency of the device.