» Current | 2020 | 2019 | 2018 | Subscribe

Linley Newsletter

TI Builds First Automotive-Radar SoCs

May 8, 2018

Author: Mike Demler

Several chip vendors offer discrete RF-CMOS radar transceivers, but Texas Instruments is the first to reach production with a family of automotive-radar SoCs, which it manufactures in its own 45nm RF-CMOS technology. The company’s AWR1x line is a family of 77–81GHz radar chips.

The AWR1243 is an integrated radar front-end system fit for short, medium, and long range. It includes the RF and analog front ends (RF/AFE), the digital baseband, and a Cortex-R4F-based radio-controller subsystem. But to handle signal processing, it requires an external DSP such as the TDA3X ADAS SoC.

The AWR1443 is TI’s ultra-short-range radar (USRR). It integrates the complete RF/analog signal-processing chain for three transmitters and four receivers, enabling elevation scanning. A hardware accelerator performs the baseband signal processing. The AWR1443 operates as a standalone sensor connected to the CANbus; alternatively, users can connect a higher-performance MCU to free the on-chip memory for radar processing and to provide additional I/O ports such as Ethernet. The USRR offers resolution surpassing that of ultrasonic sensors, so it’s well suited to low-speed tasks where small errors can be significant, such as parking assist.

The AWR1642 integrates the complete RF-to-digital signal-processing chain for a short-range radar, comprising the RF/AFE transceivers and baseband along with the radar-processor, master-control, and DSP subsystems. The radar-processor subsystem performs calibration and self-test of the receivers/transmitters, controls transmit-signal generation, and preprocesses reflected signals. The master subsystem controls communications with the automotive system and allows users to program their own radar-based algorithms. The DSP runs the critical “brain” functions that process data from the radar “eyes,” enabling object detection as well as location and velocity measurements.

Subscribers can view the full article in the Microprocessor Report.

Subscribe to the Microprocessor Report and always get the full story!

Purchase the full article


Linley Spring Processor Conference 2020
Coming April 7-8, 2020
Hyatt Regency, Santa Clara, CA
Register Now!
Linley Fall Processor Conference 2020
Coming October 28-29, 2020
Hyatt Regency, Santa Clara, CA
More Events »


Linley Newsletter
Analysis of new developments in microprocessors and other semiconductor products
Subscribe to our Newsletter »