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IWR1642
  • IWR1642
  • IWR1642
  • IWR1642

IWR1642

ACTIVE

Single-chip 76-GHz to 81-GHz mmWave sensor integrating DSP and MCU

Texas Instruments IWR1642 Product Info

1 April 2026 0

Parameters

Type

IC

Frequency range

76 - 81 GHz

Number of receivers

4

Number of transmitters

2

ADC sampling rate (ksps)

12500

TX power (dBm)

12

Arm CPU

Arm Cortex-R4F at 200 MHz

Hardware accelerators

Radar hardware accelerator

Edge AI enabled

Yes

DSP type

1 C67x DSP @ 600MHz

Interface type

CAN, I2C, LVDS, QSPI, SPI, UART

RAM (kByte)

1536

Operating temperature range (°C)

-40 to 105

Power supply solution

LP87702-Q1, LP87745-Q1

Rating

Catalog

Package

FCCSP (ABL)-161-108.16 mm² 10.4 x 10.4

Features

  • FMCW Transceiver
    • Integrated PLL, Transmitter, Receiver, Baseband, and A2D
    • 76- to 81-GHz Coverage With 4-GHz Continuous Bandwidth
    • Four Receive Channels
    • Two Transmit Channels
    • Ultra-Accurate Chirp (Timing) Engine Based on Fractional-N PLL
    • TX Power: 12.5 dBm
    • RX Noise Figure:
      • 14 dB (76 to 77 GHz)
      • 15 dB (77 to 81 GHz)
    • Phase Noise at 1 MHz:
      • –95 dBc/Hz (76 to 77 GHz)
      • –93 dBc/Hz (77 to 81 GHz)
  • Built-in Calibration and Self-Test (Monitoring)
    • ARM® Cortex®-R4F-Based Radio Control System
    • Built-in Firmware (ROM)
    • Self-calibrating System Across Frequency and Temperature
  • C674x DSP for FMCW Signal Processing
  • On-Chip Memory: 1.5MB
  • Cortex-R4F Microcontroller for Object Tracking, Classification, and Interface Control
    • Supports Autonomous Mode (Loading User Application from QSPI Flash Memory)
  • Internal Memories With ECC
  • Integrated Peripherals
    • Up to 6 ADC Channels
    • Up to 2 SPI Channels
    • Up to 2 UARTs
    • CAN Interface
    • I2C
    • GPIOs
    • 2-Lane LVDS Interface for Raw ADC Data and Debug Instrumentation
  • IWR1642 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 40 MHz
    • Supports Externally Driven Clock (Square/Sine) at 40 MHz
    • Supports 40 MHz Crystal Connection with Load Capacitors
  • 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 Temp Range: –40°C to 105°C
  • FMCW Transceiver
    • Integrated PLL, Transmitter, Receiver, Baseband, and A2D
    • 76- to 81-GHz Coverage With 4-GHz Continuous Bandwidth
    • Four Receive Channels
    • Two Transmit Channels
    • Ultra-Accurate Chirp (Timing) Engine Based on Fractional-N PLL
    • TX Power: 12.5 dBm
    • RX Noise Figure:
      • 14 dB (76 to 77 GHz)
      • 15 dB (77 to 81 GHz)
    • Phase Noise at 1 MHz:
      • –95 dBc/Hz (76 to 77 GHz)
      • –93 dBc/Hz (77 to 81 GHz)
  • Built-in Calibration and Self-Test (Monitoring)
    • ARM® Cortex®-R4F-Based Radio Control System
    • Built-in Firmware (ROM)
    • Self-calibrating System Across Frequency and Temperature
  • C674x DSP for FMCW Signal Processing
  • On-Chip Memory: 1.5MB
  • Cortex-R4F Microcontroller for Object Tracking, Classification, and Interface Control
    • Supports Autonomous Mode (Loading User Application from QSPI Flash Memory)
  • Internal Memories With ECC
  • Integrated Peripherals
    • Up to 6 ADC Channels
    • Up to 2 SPI Channels
    • Up to 2 UARTs
    • CAN Interface
    • I2C
    • GPIOs
    • 2-Lane LVDS Interface for Raw ADC Data and Debug Instrumentation
  • IWR1642 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 40 MHz
    • Supports Externally Driven Clock (Square/Sine) at 40 MHz
    • Supports 40 MHz Crystal Connection with Load Capacitors
  • 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 Temp Range: –40°C to 105°C

Description

The IWR1642 device is an integrated single-chip mmWave sensor based on FMCW radar technology capable of operation in the 76- to 81-GHz band with up to 4 GHz continuous chirp. The device is built with TI’s low-power 45-nm RFCMOS process, and this solution enables unprecedented levels of integration in an extremely small form factor. The IWR1642 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in industrial applications such as building automation, factory automation, drones, material handling, traffic monitoring, and surveillance.

The IWR1642 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81 GHz. IWR1642 includes a monolithic implementation of a 2TX, 4RX system with built-in PLL and A2D converters. The IWR1642 also integrates a 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 front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. Additionally, the device is provided as a complete platform solution including reference hardware design, software drivers, sample configurations, API guide, training, and user documentation.

The IWR1642 device is an integrated single-chip mmWave sensor based on FMCW radar technology capable of operation in the 76- to 81-GHz band with up to 4 GHz continuous chirp. The device is built with TI’s low-power 45-nm RFCMOS process, and this solution enables unprecedented levels of integration in an extremely small form factor. The IWR1642 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in industrial applications such as building automation, factory automation, drones, material handling, traffic monitoring, and surveillance.

The IWR1642 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81 GHz. IWR1642 includes a monolithic implementation of a 2TX, 4RX system with built-in PLL and A2D converters. The IWR1642 also integrates a 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 front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. Additionally, the device is provided as a complete platform solution including reference hardware design, software drivers, sample configurations, API guide, training, and user documentation.

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