Overview
The Texas Instruments IWR6843AQGABL is a single-chip, 60- to 64-GHz millimeter-wave (mmWave) sensor based on Frequency Modulated Continuous Wave (FMCW) radar technology. This device is part of the IWR6x43 family and is designed for low power, self-monitored, and ultra-accurate radar systems, particularly in industrial applications. It is built using TI’s low power 45-nm RFCMOS process, enabling high levels of integration in a compact form factor.
Key Specifications
| Parameter | Description |
|---|---|
| Frequency Range | 60 GHz to 64 GHz |
| Bandwidth | 4 GHz continuous bandwidth |
| Package | FCBGA-161, 10.4 mm × 10.4 mm |
| Operating Temperature | –40°C to 105°C |
| Transmit Channels | Three |
| Receive Channels | Four |
| TX Power | 12 dBm |
| RX Noise Figure | 12 dB |
| Phase Noise at 1 MHz | –93 dBc/Hz |
| Internal Memory | 1.75 MB (MSS program RAM: 512 KB, MSS data RAM: 192 KB, DSP L1 RAM: 64 KB, DSP L2 RAM: 256 KB, L3 radar data cube RAM: 768 KB) |
| Clock Source | 40.0 MHz crystal with internal oscillator, supports external oscillator and externally driven clock |
Key Features
- FMCW transceiver with integrated PLL, transmitter, receiver, Baseband, and ADC
- Ultra-accurate chirp engine based on fractional-N PLL
- Supports 6-bit phase shifter for TX Beam forming
- ARM Cortex-R4F-based radio control system and C674x DSP for advanced signal processing
- Hardware accelerator for FFT, filtering, and CFAR processing
- Built-in calibration and self-test, self-calibrating system across frequency and temperature
- Embedded self-monitoring with no host processor involvement on Functional Safety-Compliant devices
- Supports autonomous mode with user application loading from QSPI flash memory
- Multiple interfaces: up to 6 ADC channels, up to 2 SPI ports, up to 2 UARTs, 1 CAN-FD interface, I2C, GPIOs, and 2 lane LVDS interface
- Functional Safety-Compliant, targeting IEC 61508 up to SIL 3 and hardware integrity up to SIL-2
- Power management with built-in LDO network for enhanced PSRR and dual voltage support (3.3 V/1.8 V)
Applications
- Industrial sensor for measuring range, velocity, and angle
- Building automation
- Displacement sensing
- Gesture recognition
- Robotics
- Traffic monitoring
- Proximity and position sensing
- Security and surveillance
- Factory automation safety guards
- People counting
- Motion detection
- Occupancy detection
Q & A
- What is the frequency range of the IWR6843AQGABL?
The IWR6843AQGABL operates in the 60 GHz to 64 GHz frequency range.
- What type of radar technology does the IWR6843AQGABL use?
The IWR6843AQGABL uses Frequency Modulated Continuous Wave (FMCW) radar technology.
- How many transmit and receive channels does the IWR6843AQGABL have?
The device has three transmit channels and four receive channels.
- What is the TX power and RX noise figure of the IWR6843AQGABL?
The TX power is 12 dBm, and the RX noise figure is 12 dB.
- Does the IWR6843AQGABL support functional safety compliance?
Yes, the device is developed for functional safety applications and is compliant with IEC 61508 up to SIL 3.
- What kind of internal memory does the IWR6843AQGABL have?
The device has 1.75 MB of internal memory, divided into MSS program RAM, MSS data RAM, DSP L1 and L2 RAM, and L3 radar data cube RAM.
- What interfaces are available on the IWR6843AQGABL?
The device supports up to 6 ADC channels, up to 2 SPI ports, up to 2 UARTs, 1 CAN-FD interface, I2C, GPIOs, and a 2 lane LVDS interface.
- What is the operating temperature range of the IWR6843AQGABL?
The operating temperature range is –40°C to 105°C.
- Does the IWR6843AQGABL support autonomous mode?
Yes, it supports autonomous mode by loading user applications from QSPI flash memory.
- What is the package type and size of the IWR6843AQGABL?
The device is packaged in a 161-pin FCBGA package with a size of 10.4 mm × 10.4 mm.
