company blog about Mingjiada Supplies the AWR1642 Single-Chip 77GHz Millimetre-Wave Radar Sensor — Suitable for ADAS Applications Such as Blind Spot Detection, Lane Change Assistance and In-Vehicle Occupant Monitoring

Mingjiada supplies the AWR1642 single-chip 77GHz millimetre-wave radar sensor—suitable for ADAS applications such as blind spot detection, lane change assistance and in-vehicle occupant monitoring

I. Product Overview

The AWR1642 is an integrated single-chip FMCW (Frequency-Modulated Continuous Wave) radar sensor launched by Texas Instruments, capable of operating in the 76GHz to 81GHz frequency band. Manufactured using TI’s low-power 45nm RFCMOS process, the device achieves unprecedented integration of RF, analogue and digital processing within an ultra-compact package.

As the world’s first single-chip radar RF front-end solution with an integrated DSP, the AWR1642 is the industry’s first radar sensor to incorporate a C674x DSP, offering users the most cost-effective single-chip radar solution. The device complies with the AEC-Q100 automotive standard, achieves ISO 26262 ASIL-B level of hardware integrity, and provides documentation supporting the design of ASIL-D functional safety systems.

Shenzhen Mingjiada Electronics Co., Ltd., as a key supplier of TI’s millimetre-wave radar sensors, has long supplied the AWR1642 series chips directly from the manufacturer, with ample stock available to support rapid delivery.

II. Key Specifications

Operating frequency band: 76 GHz – 81 GHz, usable bandwidth 4 GHz

Transmit channels: 2 transmit channels (TX)

Receive channels: 4 receive channels (RX)

Transmit Power: 12 dBm / 12.5 dBm

Receiver Noise Figure: 14 dB (76–77 GHz) / 15 dB (77–81 GHz)

Phase Noise (@1 MHz): –95 dBc/Hz (76–77 GHz) / –93 dBc/Hz (77–81 GHz)

DSP: C674x DSP (600 MHz), for FMCW signal processing

MCU: Arm® Cortex®-R4F (200 MHz), for object tracking, classification and interface control

On-chip memory: 1.5 MB

Interfaces: CAN/CAN-FD, I²C, SPI (×2), UART (×2), GPIO, LVDS

Package: 161-pin FCBGA, 10.4 mm × 10.4 mm, 0.65 mm pitch

Junction temperature range: –40 °C to 125 °C

Automotive qualification: AEC-Q100

Functional safety: ISO 26262 ASIL-B certified (TÜV SÜD)

III. Key Features

1. Highly integrated single-chip architecture

The AWR1642 integrates an FMCW transceiver (including PLL, transmitter, receiver, baseband and ADC), a C674x DSP and a Cortex-R4F MCU onto a single chip. This high level of integration significantly reduces the size of the radar module, whilst lowering system BOM costs and design complexity.

2. Powerful signal processing capabilities

The integrated 600 MHz C674x DSP enables the implementation of customer-specific radar signal processing algorithms; 1.5 MB of on-chip RAM provides ample memory space for complex algorithms; the built-in ultra-precise linear frequency-modulated pulse engine (based on a fractional-N PLL) supports flexible radar waveform configuration.

3. Functional Safety and Automotive-Grade Quality

Hardware integrity meets ASIL-B level, with documentation supporting system design requirements in accordance with ISO 26262 ASIL-D; compliance with the AEC-Q100 standard ensures it meets the stringent reliability requirements of automotive electronics.

4. Autonomous Operation and Extensive Peripherals

Supports autonomous mode for loading user applications from QSPI flash memory; features built-in self-calibration and self-test (monitoring) functions, requiring no intervention from the host processor; integrates a CAN-FD interface, compatible with modern in-vehicle networks; provides dual-channel LVDS interfaces for raw ADC data acquisition and debugging.

5. Device Security (Selected Models)

Supports authenticated and encrypted secure boot; supports customer-programmable root keys, symmetric keys (256-bit) and asymmetric keys (up to RSA-2K); features built-in cryptographic accelerators (PKA, AES, SHA) and TRNG/DRGB.

6. Low-Power Design

Typical chip power consumption is approximately 1.7 W; an integrated LDO network enhances PSRR; I/O supports dual voltages of 3.3 V and 1.8 V.

7. Ease of Hardware Design

A 161-pin BGA package with 0.65 mm pitch simplifies PCB design and assembly.

IV. Key Application Scenarios

The AWR1642 is specifically designed for low-power, self-monitoring, ultra-precise radar systems in the automotive sector and is widely used in the following ADAS (Advanced Driver Assistance Systems) scenarios:

1. Blind Spot Detection (BSD)

Utilising the AWR1642’s 2TX/4RX channel configuration, it detects in real time whether any vehicles are entering the driver’s blind spot from adjacent lanes, alerting the driver to the risk of changing lanes via visual or audible warnings.

2. Lane Change Assist (LCA)

Provides assistance when the vehicle is changing lanes, detecting blind spots in real time to ensure a safe lane change.

3. Side-Approaching Vehicle Warning / Cross-Traffic Alert

Detects vehicles approaching from the side at junctions or in complex traffic environments, issuing collision warnings in a timely manner.

4. Occupant Detection

The AWR1642 can detect even the slightest movements, including breathing, thereby reliably detecting the presence of occupants inside the vehicle. It can be used to detect whether children have been left behind in the vehicle, to identify passenger positions, and for intrusion monitoring.

5. Automatic Parking Assistance and Obstacle Detection

Detects the space and obstacles around the vehicle doors and body, supporting smart door opening, smart boot opening and automatic parking.

6. Gesture Recognition

Recognises the driver’s gesture commands to enable smarter human-vehicle interaction.

In addition to the automotive applications mentioned above, the industrial-grade counterpart of the AWR1642 (IWR1642) can also be used in scenarios such as obstacle avoidance for industrial robots, liquid level monitoring, smart warehousing and personnel detection in building automation.

V. Mingjiada Supply Information

As a key supplier of TI millimetre-wave radar sensors, Shenzhen Mingjiada Electronics Co., Ltd. provides customers with the following services:

Direct supply from the manufacturer: AWR1642 series chips (model AWR1642ABIGABLRQ1)

Extensive stock: Leveraging a global supply chain network and ample inventory to support rapid delivery

As a mainstream solution for short- to medium-range radar, the AWR1642 combines performance and cost advantages, making it an ideal choice for ADAS system design.

For further information on the AWR1642, to obtain the latest quotations or to request samples, please contact Shenzhen Mingjiada Electronics Co., Ltd.

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