Industrial mmWave radar sensors iwr6843

The IWR6x43 device is an integrated single chip mmWave sensor based on FMCW radar technology capable of operation in the 60-GHz to 64-GHz band. It is built with TI’s low power 45-nm RFCMOS process and enables unprecedented levels of integration in an extremely small form factor. This device is an ideal solution for low power, self-monitored, ultra-accurate radar systems in the industrial space. Multiple variants are currently available including Functional Safety-Compliant devices and non-functional safety devices.

FMCW transceiver
- Integrated PLL, transmitter, receiver, Baseband, and ADC
- 60- to 64-GHz coverage with 4-GHz continuous bandwidth
- Four receive channels
- Three transmit channels
- Supports 6-bit phase shifter for TX Beam forming
- Ultra-accurate chirp engine based on fractional-N PLL
- TX power: 12 dBm
- RX noise figure:
  - 12 dB
- Phase noise at 1 MHz:
  - –93 dBc/Hz
Built-in calibration and self-test
- Arm Cortex-R4F-based radio control system
- Built-in firmware (ROM)
- Self-calibrating system across frequency and temperature
- Embedded self-monitoring with no host processor involvement on Functional Safety-Compliant devices
C674x DSP for advanced signal processing (IWR6843 only)
Hardware accelerator for FFT, filtering, and CFAR processing
Memory compression
Arm-R4F microcontroller for object detection, and interface control
- Supports autonomous mode (loading user application from QSPI flash memory)
Internal memory with ECC
- IWR6843: 1.75 MB, divided into MSS program RAM (512 KB), MSS data RAM (192 KB), DSP L1 RAM (64KB) and L2 RAM (256 KB), and L3 radar data cube RAM (768 KB)
- IWR6443: 1.4 MB, divided into MSS program RAM (512 KB), MSS data RAM (192 KB), and L3 radar data cube RAM (768 KB)
- Technical reference manual includes allowed size modifications
Other interfaces available to user application
- Up to 6 ADC channels (low sample rate monitoring)
- Up to 2 SPI ports
- Up to 2 UARTs
- 1 CAN-FD interface
- I2C
- GPIOs
- 2 lane LVDS interface for raw ADC data and debug instrumentation
Functional Safety-Compliant
- Developed for functional safety applications
- Documentation available to aid IEC 61508 functional safety system design up to SIL 3
- Hardware integrity up to SIL-2
- Safety-related certification
  - IEC 61508 certified upto SIL 2 by TUV SUD
Non-Functional safety variants also available
Power management
- Built-in LDO network for enhanced PSRR
- I/Os support dual voltage 3.3 V/1.8 V
Clock source
- 40.0 MHz crystal with internal oscillator
- Supports external oscillator at 40 MHz
- Supports externally driven clock (square/sine) at 40 MHz
Easy hardware design
- 0.65-mm pitch, 161-pin 10.4 mm × 10.4 mm flip chip BGA package for easy assembly and low-cost PCB design
- Small solution size
Operating conditions:
- Junction temperature range of –40°C to 105°C

Frequency range	60 - 64 GHz
Number of receivers	4
Number of transmitters	3
ADC sampling rate (ksps)	250000
TX power (dBm)	12
Arm CPU	ARM R4F @ 200MHz
Coprocessors	Radar Hardware Accelerator
DSP type	1 C67x DSP @ 600MHz
Interface type	I2C, LVDS, QSPI, SPI, UART
RAM (kByte)	1792
Operating temperature range (°C)	-40 to 105
TI functional safety category	Functional Safety-Compliant
Security	Cryptographic acceleration, Device identity/keys, Secure boot, Secure software update, Software IP protection
Power supply solution	LP87745-Q1
Rating	Catalog

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