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Texas Instruments AWR6443/AWR6843 Single-Chip mmWave Sensor

Texas Instruments AWR6443/AWR6843 Integrated Single-Chip mmWave Sensor is based on FMCW radar technology and can operate in the 60GHz to 64GHz band. It is built with TI's low-power 45nm RFCMOS process and enables unprecedented levels of integration in an extremely small form factor. The Texas Instruments AWR6443/AWR6843 is an ideal solution for the automotive industry's low-power, self-monitored, ultra-accurate radar systems.

Features

  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, baseband, and A2D
    • 60 to 64GHz coverage with 4GHz continuous bandwidth
    • Four receive channels
    • Three transmit channels
    • Supports 6-bit phase shifter
    • Ultra-accurate chirp engine based on fractional-N PLL
    • 12dBm TX power
    • 12dB RX noise figure
    • –93dBc/Hz phase noise at 1MHz
  • Built-in calibration and self-test
    • Arm® Cortex-R4F-based radio control system
    • Built-in firmware (ROM)
    • Self-calibrating system across frequency and temperature
  • C674x DSP for advanced signal processing
  • Hardware accelerator for FFT, filtering, and CFAR processing
  • Memory compression
  • Arm R4F microcontroller for object detection and interface control
    • Supports autonomous mode (loading user application from QSPI flash memory)
  • Internal memory with ECC
    • 1.75MB, divided into MSS program RAM (512KB), MSS data RAM (192KB), DSP L1RAM (64KB) and L2 RAM (256KB), and L3 radar data cube RAM (768KB)
    • Technical reference manual includes allowed size modifications
  • Other interfaces available to user application
    • Up to six ADC channels (low sample rate monitoring)
    • Up to two SPI ports
    • Up to two UARTs
    • Two CAN-FD interfaces
    • I2C
    • GPIOs
    • 2-lane LVDS interface for raw ADC data and debug instrumentation
  • Functional safety-compliant targeted
    • Developed for functional safety applications
    • Documentation will be available to aid the ISO 26262 functional safety system design
    • Hardware integrity up to ASIL B targeted
    • Safety-related certification ISO 26262 certification by TUV SUD planned
  • Non-functional safety variants
  • AECQ-100 qualified
  • Power management
    • Built-in LDO network for enhanced PSRR
    • I/Os support dual voltage 3.3V/1.8V
  • Clock source
    • 40.0MHz crystal with internal oscillator
    • Supports external oscillator at 40MHz
    • Supports externally driven clock (square/sine) at 40MHz
  • Easy hardware design
    • 0.65mm pitch, 161-pin 10.4mm × 10.4mm flip-chip BGA package for easy assembly and low-cost PCB design
    • Small solution size
  • Supports automotive temperature operating range

Applications

  • Interior cabin sensing
  • Child presence detection
  • Occupancy detection
  • Seat belt reminder
  • Gesture detection
  • Driver vital sign monitoring
  • Kick sensor/access sensor

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments AWR6443/AWR6843 Single-Chip mmWave Sensor

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Publicado: 2020-08-14 | Actualizado: 2024-08-12