1 Features
• FMCW transceiver
– Integrated PLL, transmitter, receiver, Baseband,
and ADC
– 76 to 81GHz coverage with 4GHz available
bandwidth
– Four receive channels
– Two transmit channels
– Ultra-accurate chirp (timing) engine based on
fractional-N PLL
– TX power: 12dBm
– RX noise figure:
• 14dB (76 to 77GHz)
• 15dB (77 to 81GHz)
– Phase noise at 1MHz:
• –95dBc/Hz (76 to 77GHz)
• –93dBc/Hz (77 to 81GHz)
• Built-in calibration and self-test (monitoring)
– Arm® Cortex®-R4F-based radio control system
– Built-in firmware (ROM)
– Self-calibrating system across process and
temperature
• C674x DSP for FMCW signal processing
• On-chip memory: 1.5MB
• Cortex-R4F microcontroller for object tracking and
classification, AUTOSAR, and interface control
– Supports autonomous mode (loading user
application from QSPI flash memory)
• Integrated peripherals
– Internal memories with ECC
• Host interface
– CAN and CAN-FD
• Other interfaces available to user application
– Up to 6 ADC channels
– Up to 2 SPI channels
– Up to 2 UARTs
– I2C
– GPIOs
– 2-lane LVDS interface for raw ADC data and
debug instrumentation
• Device Security (on select part numbers)
– Secure authenticated and encrypted boot
support
– Customer programmable root keys, symmetric
keys (256 bit), Asymmetric keys (up to RSA-2K)
with Key revocation capability
– Crypto software accelerators - PKA , AES (up
to 256 bit), SHA (up to 256 bit), TRNG/DRGB
• Functional Safety-Compliant
– Developed for functional safety applications
– Documentation available to aid ISO 26262
functional safety system design up to ASIL-D
– Hardware integrity up to ASIL-B
– Safety-related certification
• ISO 26262 certified upto ASIL B by TUV
SUD
• AEC-Q100 qualified
• Device advanced features
– Embedded self-monitoring with no host
processor involvement
– Complex baseband architecture
– Embedded interference detection capability
• Power management
– Built-in LDO network for enhanced PSRR
– I/Os support dual voltage 3.3 V/1.8 V
• Clock source
– Supports External Oscillator at 40MHz
– Supports externally driven clock (square/sine)
at 40MHz
– Supports 40MHz crystal connection with load
capacitors
• Easy hardware design
– 0.65mm pitch, 161-pin 10.4mm × 10.4 mmflip
chip BGA package for easy assembly and lowcost
PCB design
– Small solution size
• Operating Conditions
– Junction temp range: –40°C to 125°C

2 Applications
• Blind spot detection
• Lane change assistance
• Cross traffic alert
• Parking assistance
• Occupancy detection
• Gesture recognition

3 Description
The AWR1642 device is an integrated single-chip FMCW radar sensor capable of operation in the 76 to 81GHz
band. The device is built with TI’s low-power 45nm RFCMOS process and enables unprecedented levels of
integration in an extremely small form factor. The AWR1642 is an ideal solution for low-power, self-monitored,
ultra-accurate radar systems in the automotive space.
The AWR1642 device is a self-contained FMCW radar sensor single-chip solution that simplifies the
implementation of Automotive Radar sensors in the band of 76 to 81GHz. It is built on TI’s low-power 45nm
RFCMOS process, which enables a monolithic implementation of a 2TX, 4RX system with built-in PLL and
ADC converters. It integrates the DSP subsystem, which contains TI's high-performance C674x DSP for the
Radar Signal processing. The device includes an ARM R4F-based processor subsystem, which is responsible
for radio configuration, control, and calibration. Simple programming model changes can enable a wide variety
of sensor implementation (Short, Mid, Long) with the possibility of dynamic reconfiguration for implementing a
multimode sensor. Additionally, the device is provided as a complete platform solution including TI reference
designs, software drivers, sample configurations, API guides, and user documentation.