Overview
The AWR1642ABIGABLRQ1 is a single-chip 76-GHz to 81-GHz automotive radar sensor developed by Texas Instruments. This device is built using TI’s low-power 45-nm RFCMOS process, enabling high levels of integration in a compact form factor. It is designed for low-power, self-monitored, and ultra-accurate radar systems, making it an ideal solution for various automotive applications. The AWR1642 integrates a DSP subsystem with TI’s high-performance C674x DSP for radar signal processing and an ARM Cortex-R4F-based processor for radio configuration, control, and calibration.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 76 GHz to 81 GHz |
| Package Type | FCBGA (161 pins) |
| Package Size | 10.4 mm × 10.4 mm |
| Terminal Pitch | 0.65 mm |
| Supply Voltage (Nominal) | 1.2 V |
| Supply Voltage (Min/Max) | 1.14 V / 1.32 V |
| Operating Temperature Range | -40°C to 125°C |
| Number of Transmit Channels | 2 |
| Number of Receive Channels | 4 |
| TX Power | 12 dBm |
| RX Noise Figure | 14 dB (76-77 GHz), 15 dB (77-81 GHz) |
| Phase Noise at 1 MHz | -95 dBc/Hz (76-77 GHz), -93 dBc/Hz (77-81 GHz) |
| On-chip Memory | 1.5 MB |
| Clock Source | Supports External Oscillator at 40 MHz, externally driven clock, and 40 MHz crystal connection |
Key Features
- FMCW transceiver with integrated PLL, transmitter, receiver, baseband, and ADC.
- Ultra-accurate chirp (timing) engine based on fractional-N PLL.
- Built-in calibration and self-test (monitoring).
- ARM Cortex-R4F-based radio control system and C674x DSP for FMCW signal processing.
- Supports autonomous mode with loading user application from QSPI flash memory.
- Integrated peripherals including CAN and CAN-FD, SPI, UARTs, I2C, GPIOs, and LVDS interface.
- Device security features including secure authenticated and encrypted boot support, customer programmable keys, and crypto software accelerators.
- Functional safety compliance with ISO 26262 certification up to ASIL-B and AEC-Q100 qualified.
- Embedded self-monitoring with no host processor involvement and complex baseband architecture.
- Power management with built-in LDO network for enhanced PSRR and I/Os supporting dual voltage 3.3 V/1.8 V.
Applications
- Blind spot detection).
- Lane change assistance).
- Cross traffic alert).
- Parking assistance).
- Occupancy detection).
- Gesture recognition).
Q & A
- What is the frequency range of the AWR1642ABIGABLRQ1?
The frequency range is 76 GHz to 81 GHz).
- What type of package does the AWR1642ABIGABLRQ1 use?
The package type is FCBGA with 161 pins).
- What is the operating temperature range of the AWR1642ABIGABLRQ1?
The operating temperature range is -40°C to 125°C).
- How many transmit and receive channels does the AWR1642ABIGABLRQ1 have?
The device has 2 transmit channels and 4 receive channels).
- What is the TX power of the AWR1642ABIGABLRQ1?
The TX power is 12 dBm).
- Does the AWR1642ABIGABLRQ1 support autonomous mode?
Yes, it supports autonomous mode with loading user application from QSPI flash memory).
- What kind of processor does the AWR1642ABIGABLRQ1 use?
The device uses an ARM Cortex-R4F-based processor and a C674x DSP).
- Is the AWR1642ABIGABLRQ1 compliant with functional safety standards?
Yes, it is ISO 26262 certified up to ASIL-B and AEC-Q100 qualified).
- What are the key security features of the AWR1642ABIGABLRQ1?
The device includes secure authenticated and encrypted boot support, customer programmable keys, and crypto software accelerators).
- What are the typical applications of the AWR1642ABIGABLRQ1?
Typical applications include blind spot detection, lane change assistance, cross traffic alert, parking assistance, occupancy detection, and gesture recognition).
