AWR1243 Monolithic Microwave Integrated Circuit (M

By Texas Instruments 90

AWR1243 Monolithic Microwave Integrated Circuit (M

Texas Instruments' AWR1243 device is an integrated, single-chip, frequency-modulated continuous wave (FMCW) transceiver capable of operation in the 76 GHz to 81 GHz band. The device enables unprecedented levels of integration in an extremely small form factor. The AWR1243 is an ideal solution for low power, self-monitored, ultra-accurate radar systems in the automotive space.

The AWR1243 device is a self-contained FMCW transceiver single-chip solution that simplifies the implementation of automotive radar sensors in the band of 76 GHz to 81 GHz. It is built on TI’s low-power 45 nm radio-frequency, complementary metal-oxide semiconductor (RFCMOS) process, which enables a monolithic implementation of a 3TX, 4RX system with built-in phase-locked loop (PLL) and analog-to-digital converters (ADCs).

A wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor, are enabled by making simple programming model changes. This device is provided as a complete platform solution including reference hardware design, software drivers, sample configurations, API guide, and user documentation.

Features
  • FMCW transceiver:
    • Integrated PLL, transmitter, receiver, baseband, and ADCs
    • Four receive channels
    • Three transmit channels
  • Built-in calibration and self-test:
    • Built-in firmware (ROM)
    • Self-calibrating system across frequency and temperature
  • Host interface:
    • Control interface with external processor over serial peripheral interface (SPI)
    • Interrupts for fault reporting
  • Automotive safety integrity level (ASIL) B targeted
  • ECQ100 qualified
  • AWR1243 advanced features:
    • Embedded self-monitoring with no host processor involvement
    • Embedded interference detection capability
  • Power management:
    • Built-in low-dropout (LDO) network for enhanced power supply rejection ratio (PSRR)
  • Clock source:
    • Supports externally driven clock (square/sine) at 40 MHz
  • Easy hardware design:
    • Small solution size
  • Supports automotive temperature operating range
Applications
  • Automated highway driving
  • Automatic emergency braking
  • Adaptive cruise controls
  • Imaging radars using cascading configuration

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