1 Features

• FMCW Transceiver

– Integrated PLL, transmitter, receiver, baseband

and ADC

– 57GHz to 63.5GHz coverage with 6.5GHz

continuous bandwidth

– Range typically up to 20m

– FMCW operation

– 5MHz IF bandwidth, real-only Rx channels

– Ultra-accurate chirp engine based on fractional-

N PLL

• Integrated 3 receive channels and 2 transmit

channels Antennas-On-Package (AOP)

• Processing elements

– Arm® M4F® core with single precision FPU

(160MHz)

– TI Radar Hardware Accelerator (HWA 1.2)

for FFT, log magnitude, and CFAR operations

(80MHz)

• Supports multiple low-power modes

– Idle mode and deep sleep mode

• Power management

– 1.8V and 3.3V IO support

– Built-in LDO network for enhanced PSRR

– BOM-Optimized and Power-Optimized modes

– One or two power rails for 1.8V IO mode, two or

three power rails for 3.3V IO mode

• Built-in calibration

– Built-in Firmware (ROM)

– Self-contained on-chip calibration system

• Host Interface

– UART

– CAN-FD

– SPI

• RDIF (Radar Data Interface) for raw ADC sample

capture

• Other interfaces available to user application

– QSPI

– I2C

– JTAG

– GPIOs

– PWM Interface

• Internal memory

– 1MB of On-chip RAM

– Configurable L3 shared memory for Radar

Cube

– Data and Code RAM of (512/640/768KB)

• Easy hardware design

– 0.5mm pitch, 101-BGA 10.9mm× 6.7mm AMY

package for easy assembly and low-cost PCB

design

– Small size

• Clock source

– 40.0MHz crystal for primary clock

– Supports externally driven clock (Square/Sine)

at 40.0MHz

– 32kHz internal oscillator for low power

operations

• Supports temperature operating range

– Operating junction temperature range: –40°C to

105°C

2 Applications

• Automated door/gate

• Motion detector

• Occupancy detection / people tracking / people

counting

• Video doorbell

• IP network camera

• Thermostat

• Air conditioner

• Refrigerators and freezers

• Vacuum robot

• Lawn mover

• PC/Notebooks

• Portable electronics

• Televisions

• Tablets

• Earphones

• Smart watches

• Gaming

• Home theater & entertainment

3 Description

The IWRL6432AOP mmWave Sensor device is an Antenna-on-Package (AOP) device that is an evolution within

integrated single chip mmWave sensors that simplifies the board design. The device is based on FMCW radar

technology. The device is capable of operation in the 57GHz to 63.5GHz band and is partitioned into mainly four

power domains:

• RF/Analog Sub-System: This block includes all the RF and Analog components required to transmit and

receive the RF signals.

• Front-End Controller sub-System (FECSS): FECSS contains processor ARM Cortex M3, responsible for

radar front-end configuration, control, and calibration.

• Application Sub-System (APPSS): APPSS is where the device implements a user programmable ARM

Cortex M4 allowing for custom control and interface applications. Top Sub-System (TOPSS) is part of the

APPSS power domain and contains the clocking and power management sub-blocks.

• Hardware Accelerator (HWA): HWA block supplements the APPSS by offloading common radar processing

such as FFT, Constant False Alarm rate (CFAR), scaling, and compression.

IWRL6432AOP is specifically designed to have separate control for each of the above-mentioned power

domains to control states (power ON or OFF) based on use case requirements. The device also features

the capability to exercise various low-power states like sleep and deep sleep, where low-power sleep mode

is achieved by clock gating and by turning off some of the internal IP blocks of the device. The device also

provides the option of keeping some contents of the device, like Application image or RF profile retained in such

scenarios.

Additionally, the device is built with TI’s low power 45nm RF CMOS process and enables unprecedented levels

of integration in an extremely small form factor. IWRL6432AOP is designed for low power, self-monitored,

ultra-accurate radar systems in the industrial (and personal electronics) space for applications such as

building/factory automation, commercial/residential security, personal electronics, presence/motion detection,

and gesture detection/recognition for human machine interfaces