1.1 Features 1

• 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

1.2 Applications

• Industrial Sensor for Measuring Range, Velocity,

and Angle

• Tank Level Probing Radar

• Displacement Sensing

• Field Transmitters

• Traffic Monitoring

– 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

• Proximity Sensing

• Security and Surveillance

• Factory Automation Safety Guards

• People Counting

• Motion Detection

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, ultraaccurate

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.