1 Features

• FMCW transceiver

– Integrated 4 receivers and 3 transmitters

Antennas-On-Package (AOP)

– Integrated PLL, transmitter, receiver, Baseband,

and ADC

– 60 to 64GHz coverage with 4GHz continuous

bandwidth

– Supports 6-bit phase shifter for TX Beam

forming

– Ultra-accurate chirp engine based on fractional-

N PLL

• Built-in calibration and self-test

– Arm® Cortex®-R4F-based radio control system

– Built-in firmware (ROM)

– Self-calibrating system across process and

temperature

– Embedded self-monitoring with no host

processor involvement on Functional Safety-

Compliant devices

• C674x DSP for advanced signal processing

• Memory compression

• Hardware accelerator for FFT, filtering, and CFAR

processing

• Arm-R4F microcontroller for object detection, and

interface control

– Supports autonomous mode (loading user

application from QSPI flash memory)

• Internal memory with ECC

– 1.75MB, divided into MSS program RAM

(512KB), MSS data RAM (192KB), DSP L1

RAM (64KB) and L2 RAM (256KB), and L3

radar data cube RAM (768KB)

– Technical reference manual includes allowed

size modifications

• Device Security (on select part numbers)

– Secure authenticated and encrypted boot

support

– Customer programmable root keys, symmetric

keys (256 bit), Asymmetric keys (up to RSA-2K)

with Key revocation capability

– Crypto software accelerators - PKA , AES (up

to 256 bit), SHA (up to 256 bit), TRNG/DRGB

• Other interfaces available to user application

– Up to 6 ADC channels (low sample rate

monitoring)

– Up to 2 SPI ports

– Up to 2 UARTs

– 1 CAN-FD interface

– I2C

– GPIOs

– 2 lane LVDS interface for raw ADC data and

debug instrumentation

• Functional Safety-Compliant

– Developed for functional safety applications

– Documentation available to aid IEC 61508

functional safety system design up to SIL 3

– Hardware integrity up to SIL-2

– Safety-related certification

• IEC 61508 certified upto SIL 2 by TUV SUD

• Power management

– Built-in LDO network for enhanced PSRR

– I/Os support dual voltage 3.3V/1.8V

• Clock source

– 40.0MHz crystal with internal oscillator

– Supports external oscillator at 40MHz

– Supports externally driven clock (square/sine)

at 40MHz

• Easy hardware design

– 0.8mm pitch, 180-pin 15mm × 15mm FCBGA

package (ALP) for easy assembly and low-cost

PCB design

– Small solution size

• Operating conditions

– Junction temp range: –40°C to 105°C

2 Applications

• Industrial sensor for measuring range, velocity, and

angle

• Building automation

• Displacement sensing

• Gesture

• Robotics

• Traffic monitoring

• Level Sensing

• Security and surveillance

• Factory automation safety guards

• Occupancy detection / people tracking / people

counting

• Automated door & gate

• Motion detection

3 Description

The IWR6843AOP is an Antenna-on-Package (AOP) device that is an evolution within the single-chip radar

device family from Texas Instruments (TI). This device enables unprecedented levels of integration in an

extremely small form factor and is an ideal solution for low power, self-monitored, ultra-accurate radar systems

in the industrial space. Multiple variants are currently available including Functional Safety-Compliant devices

(SIL2) and non-functional safety devices.

It integrates a DSP subsystem, which contains TI's high-performance C674x DSP for the Radar Signal

processing. The device includes a BIST processor subsystem, which is responsible for radio configuration,

control, and calibration. Additionally, the device includes a user programmable Arm Cortex-R4F based for

automotive interfacing. The Hardware Accelerator block (HWA) can perform radar processing and can offload

the DSP in order to execute higher level algorithms. Simple programming model changes can enable a wide

variety of sensor applications with the possibility of dynamic reconfiguration for implementing a multimode

sensor. Additionally, the device is provided as a complete platform solution including reference hardware design,

software drivers, sample configurations, API guide, and user documentation.