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Description:

AWRL1432BDBGAMFRQ1 millimeter wave sensor is an integrated single-chip millimeter wave sensor based on FMCW radar technology. The device is capable of operating in the 76GHz to 81GHz band and is divided into four main power domains:

Rf/Analog subsystem: This block contains all the RF and analog components needed to send and receive RF signals.

Front-end Controller Subsystem (FECSS) : FECSS contains the processor responsible for radar front-end configuration, control, and calibration.

Application Subsystem (APPSS) : In APPSS, the device implements a user-programmable ARM Cortex M4 that allows custom control and automotive interface applications. The Top Subsystem (TOPSS) is part of the APPSS power domain and contains clock and power management subblocks.

Hardware Accelerator (HWA) : The HWA block complements the APPSS by offloading common radar processing such as FFT, constant false alarm rate (CFAR), scaling, and compression.

The device is specifically designed to control each of these power domains individually, so its state (power-on or power-off) can be controlled according to the use case requirements. The device also has the capability to run various low-power states, such as sleep and deep sleep, where the low-power sleep mode is achieved by clock gating and turning off the internal IP block of the device. The device also provides the option to retain certain contents of the device, such as application images or RF profiles that are retained in such cases.

peculiarity

• FMCW transceiver

- Integrated PLL, transmitter, receiver, baseband and ADC

- Coverage range from 76GHz to 81GHz with continuous bandwidth of 5GHz

- 3 receiving channels and 2 sending channels

- Short distance

- Typical output power per Tx is 11dBm

- 14dB typical noise figure

Typical phase noise at 1MHz is -89dBc/Hz

- The FMCW runs

- 5MHz IF bandwidth, only real part Rx channel

- Ultra-accurate LFM pulse engine based on fractional NPLL

- Binary phase shifters per transmitter

• Processing elements

- Arm® M4F® core with single precision FPU (160MHz)

- TI Radar Hardware Accelerator (HWA 1.2) for FFT, log-amplitude and CFAR operations (80MHz)

• Supports multiple low power modes

- Idle mode and deep sleep mode

• Power Management

- 1.8V and 3.3V I/O support

- Built-in LDO network to enhance PSRR

- BOM optimization mode and low power mode

- One or two power rails for 1.8V IO mode, two or three power rails for 3.3V IO mode

• FCCSP device package size: 6.45mm x 6.45mm

• Built-in calibration and self-test

- Built-in Firmware (ROM)

- On-chip self-contained calibration system

• Host interface

– UART

– CAN-FD

– SPI

– LIN

• RDIF (Radar Data Interface) for raw ADC sample acquisition

• Other interfaces for user applications

– QSPI

– I2C

– JTAG

– GPIO

- PWM interface

• Internal memory

- 1MB of on-chip RAM

- Configurable L3 shared memory for radar cubes

- (512/640/768KB) of data and code RAM

• Aim for functional safety compliance

- Developed for functional safety applications

- Aim for hardware integrity up to ASIL Level B

• FCCSP package with 12 x 12, 102 BGA balls

• Compliant with AEC Q-100 standards

• Clock source

- 40.0MHz crystal for master clock

- Support externally driven, 40.0MHz clock (square wave/sine wave)

- 32kHz internal oscillator for low power operation

• Support operating temperature range

- Working junction temperature range: -40°C to 125°C

Related products:

AWRL1432BDBGAMFRQ1

AWRL1432BBAAMFRQ1

AWRL1432BDBAAMFRQ1

Applications:

• Kick open (guide)

• Automatic parking

• Door opener

• Side approach assist system (front)

• Blind spot detection

• Lane change assistance system