AWR1843ABGABLQ1

Overview

The AWR1843ABGABLQ1 is a single-chip automotive radar sensor operating in the 76-GHz to 81-GHz frequency range. It integrates an ARM Cortex-R4F microcontroller, a C674x fixed-point DSP, and a dedicated radar accelerator. The device features four transmit and four receive channels with a maximum output power of 12 dBm per transmitter. It includes a 10-bit ADC with six channels and supports data rates up to 900 Mbps. Memory consists of 1.75 MB of program memory and 2048 kB of SRAM. Operating temperatures range from -40°C to +125°C within an FCCSP-161 package.

Feature Summary

• Integrates processing cores including an ARM Cortex-R4F MCU and C674x DSP for on-chip signal processing.
• Features a dedicated radar accelerator to offload computational tasks from the main processors.
• Supports FMCW radar technology with four transmit and four receive antenna channels.
• Provides high-speed serial interfaces for data transmission and control.

Applications

• Automotive blind spot detection systems
• Rear cross-traffic alert applications
• Adaptive cruise control sensors
• Front and rear collision avoidance systems

Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape-and-reel versus tray configuration. Ensure the component meets the required automotive quality standards for the target application environment. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs. Confirm that the supply chain source provides valid traceability documentation for automotive-grade parts.

Selection Notes

Select this model when integrated processing capabilities are required alongside RF front-end functions. Consider the thermal performance of the FCCSP-161 package for high-density PCB layouts. Evaluate the memory constraints against the complexity of the intended signal processing algorithms. Compare channel counts and bandwidth requirements against alternative sensors in the same family.

Part Context

This part belongs to the AWR1843 family of single-chip mmWave radar sensors designed for automotive use. It complements industrial variants like the IWR1843 by offering extended temperature ranges and automotive qualification. The device serves as a foundational component for advanced driver assistance systems requiring compact, low-power radar solutions.

Replacement Considerations

The AWR1843ABGABLRQ1 is a public substitute variant differing primarily in packaging format. Verify mechanical footprint compatibility before substitution. Check for any differences in moisture sensitivity levels or reflow profile requirements between tray and reel versions.