描述 Description

The AWRL6432AOP mmWave Sensor device is an Antenna-on-Package (AOP) device that is an evolution within integrated single chip mmWave sensor based on FMCW radar technology. The device is capable of operation in the 57GHz to 63.9GHz 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 automotive 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. AWRL6432AOP 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. AWRL6432AOP is designed for low power, self-monitored, ultra-accurate radar systems in the automotive space for applications like one row life presence detection, intrusion detection and exterior intrusion monitoring / radar DVR.

特性 Features

FMCW Transceiver

Integrated PLL, transmitter, receiver, baseband and ADC

57GHz - 64GHz coverage with 7GHz continuous bandwidth

Integrated 3 receive channels and 2 transmit channels Antennas-On-Package (AOP)

Range typically up to 25m

FMCW operation

5MHz IF bandwidth, real-only Rx channels

Ultra-accurate chirp engine based on fractional-N PLL

Per transmitter binary phase shifter



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 and self-test

Built-in Firmware (ROM)

Self-Contained on chip calibration system



Host Interface

UART

CAN-FD

SPI

LIN



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)



Functional Safety-Compliant Targeted

Developed for functional safety applications

Hardware integrity up to ASIL-B targeted





AEC Q-100 Qualified

Easy hardware design

0.5-mm pitch, 101-BGA 10.9mm× 6.7mmAMY package for easy assembly and low-cost PCB design

Small solution 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 125°C