Texas Instruments' AWR1642 and IWR1642 devices are self-contained FMCW radar sensor single-chip solutions that simplify the implementation of automotive radar (AWR1642) and mmWave sensors in the band of 76 GHz to 81 GHz. They are built on Texas Instruments’ low-power 45 nm RFCMOS process, which enables a monolithic implementation of a 2TX, 4RX system with built-in PLL and A2D converters. They integrate the DSP subsystem, which contains Texas Instruments’ high-performance C674x DSP for the radar signal processing. These devices include an Arm® Cortex®-R4F-based processor subsystem, which is responsible for radio (AWR1642) or front-end (IWR1642) configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. Additionally, the devices are provided as complete platform solutions including reference hardware design, software drivers, sample configurations, API guide, and user documentation.
Resources
- Blog: Smart robots coming soon to a cubicle or kitchen near you
- Application Note: How sensor data is powering AI in robotics
| Features |
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- FMCW transceiver
- Integrated PLL, transmitter, receiver, baseband, and A2D
- 76 GHz to 81 GHz coverage with 4 GHz available bandwidth
- Four receive channels
- Two transmit channels
- Ultra-accurate chirp (timing) engine based on fractional-N PLL
- TX power: 12.5 dBm
- RX noise figure:
- 14 dB (76 GHz to 77 GHz)
- 15 dB (77 GHz to 81 GHz)
- Phase noise at 1 MHz:
- -95 dBc/Hz (76 GHz to 77 GHz)
- -93 dBc/Hz (77 GHz to 81 GHz)
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- Built-in calibration and self-test (monitoring)
- Arm Cortex-R4F-based radio control system
- Built-in firmware (ROM)
- Self-calibrating system across frequency and temperature
- C674x DSP for FMCW signal processing
- On-chip memory: 1.5 MB
- Cortex-R4F microcontroller for object tracking and classification, AUTOSAR (AWR1642), and interface control
- Supports autonomous mode (loading user application from QSPI Flash memory)
- Integrated peripherals
- Internal memories with ECC
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| AWR1642 Applications |
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- Blind spot detection
- Lane change assistance
- Cross traffic alerts
- Parking assistance
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- Occupancy detection
- Simple gesture recognition
- Car door opener applications
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| IWR1642 Applications |
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- Industrial sensor for measuring range, velocity, and angle
- Tank-level probing radar
- Displacement sensing
- Field transmitters
- Traffic monitoring
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- Proximity sensing
- Security and surveillance
- Factory automation safety guards
- People counting
- Motion detection
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