AWR2944 datasheet(2/93 Pages) TI

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2 Applications

• Lane Change Assist

• Blind Spot detection

• Automatic Emergency Braking

• Adaptive Cruise Control

• Cross Traffic Alert

RX1

RX2

RX3

RX4

TX2

Antenna

Structure

TX1

Radar

Front End

Integrated MCU

ARM Cortex-R5F

Ethernet

Power Management

40-MHz

Crystal

Serial

Flash

Ethernet

PHY

Automotive

Network

Integrated DSP

TI C66x

mmWave Sensor

CAN FD (2)

MCAN

PHY

Automotive

Network

QSPI

TX3

TX4

Figure 2-1. Autonomous Radar Sensor For Automotive Applications

3 Description

The AWR294x is a single chip mmWave Sensor composed of a FMCW transceiver, capable of operation in the

76-81 GHz band, radar data processing elements, and peripherals for in-vehicle networking. It is built with TI’s

low power, 45 nm RFCMOS process and enables unprecedented levels of integration in a small form factor and

minimal BOM. AWR294x is an ideal solution for low power, self-monitored, ultra-accurate radar systems in the

automotive space.

TI’s low-power, 45-nm RFCMOS process enables a monolithic implementation of a 3-4 TX, 4 RX system

with integrated PLL, VCO, mixer, and baseband ADC. Integrated in the DSP Subsystem (DSS), is TI's high-

performance C66x DSP for radar signal processing. The device includes a Radio Processor Subsystem (RSS),

which is responsible for radar front-end configuration, control, and calibration. Within the Main Subsystem

(MSS), the device implements a user programmable ARM R5F allowing for custom control and automotive

interface applications. The Hardware Accelerator block (HWA 2.0) supplements the DSS and MSS by offloading

comon radar processing such as FFT, Constant False Alarm rate (CFAR), scaling, and compression. This saves

MIPS on the DSS and MSS, opening up resources for custom applications and higher level algorithms.

A Hardware Security Module (HSM) is also provisioned in the device (available for only Secure Part variants).

The HSM consists of a programmable ARM Cortex M4 core and the necessary infrastructure to provide a secure

zone of operation within the device.

Simple programming model changes can enable a wide variety of sensor implementation (Short, Mid, Long) with

the possibility of dynamic reconfiguration for implementing a multimode sensor.

AWR2944

SWRS273 – NOVEMBER 2021

www.ti.com

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