Two-device mmWave cascade reference design for automotive 4D imaging radar


Design files


This automotive radar reference design is a cascaded 76-GHz to 81-GHz radar sensor module. This includesa two-device cascaded array of AWR2243 devices and an AM2732R radar processor. In this cascaded radar configuration, a primary device distributes a 20-GHz local-oscillator (LO) signal to both the primary and secondary devices, allowing these two devices to operate as a single radio frequency (RF) transceiver. This enables support for up to 6 transmit (TX) and 8 receive (RX) antenna elements, giving a total number of 48 virtual channels in the multiple-input multiple output (MIMO) virtual array.

  • Imaging radar
  • Longer-range TX beamforming and beamsteering
  • High angular resolution MIMO radar
  • Power supply optimized for small size and high efficiency
  • Wide VIN 36-V OFF battery supply tolerates up to 42 V
  • Diagnostic and monitoring functions for ASIL B
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUF12.PDF (888 K)

Reference design overview and verified performance test data

TIDMB63.PDF (1603 K)

Detailed schematic diagram for design layout and components

TIDMB64.PDF (163 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDMB65.PDF (687 K)

Detailed overview of design layout for component placement

TIDMB67.ZIP (8863 K)

Files used for 3D models or 2D drawings of IC components

TIDCGC3.ZIP (2985 K)

Design file that contains information on physical board layer of design PCB

TIDMB66.PDF (10108 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Automotive mmWave radar sensors

AWR224376-GHz to 81-GHz automotive second-generation high-performance MMIC

Data sheet: PDF
Arm Cortex-R MCUs

AM2732-Q1Automotive dual-core Arm® Cortex-R5F MCU up to 400 MHz with C66x DSP, Ethernet, safety, security

Data sheet: PDF | HTML
Boost converters (integrated switch)

TPS61379-Q125µA quiescent current synchronous boost converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

LM62460-Q16-A automotive buck converter optimized for power density and low EMI

Data sheet: PDF | HTML
CAN transceivers

TCAN1043A-Q1Automotive CAN FD transceiver with wake/inhibit/sleep

Data sheet: PDF | HTML
CAN transceivers

TCAN1044A-Q1Enhanced automotive CAN transceiver with standby

Data sheet: PDF | HTML
Digital temperature sensors

TMP112-Q1Automotive ±0.5°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 package

Data sheet: PDF | HTML
Ethernet PHYs

DP83TC811-Q1Low-power 100BASE-T1 automotive PHYTER™ Ethernet physical layer transceiver

Data sheet: PDF | HTML
Ethernet PHYs

DP83TC812R-Q1TC-10 compliant 100BASE-T1 automotive Ethernet PHY with RGMII

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS784-Q1Automotive, 300-mA, low-IQ, high-PSRR, LDO voltage regulator with high accuracy and enable

Data sheet: PDF | HTML
Multi-channel ICs (PMICs)

LP876242-Q1Automotive four 8.8-MHz buck converters for AWR and IWR MMICs

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Design guide Two-Device mmWave Cascade Reference Design for Automotive 4D Imaging Radar PDF | HTML Dec. 07, 2022

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