1 Features

• FMCW transceiver

– Integrated PLL, transmitter, receiver, baseband,

and ADC

– 76- to 81-GHz coverage with 5 GHz available

bandwidth

– Four receive channels

– Three transmit channels

– Ultra-accurate chirp engine based on

Fractional-N PLL

– TX power: 13 dBm

– RX noise figure: 13 dB

– Phase noise at 1 MHz:

• –96 dBc/Hz (76 to 77 GHz)

• –94 dBc/Hz (77 to 81 GHz)

• Built-in calibration and self-test

– Built-in firmware (ROM)

– Self-calibrating system across frequency and

temperature

• Host interface

– Control interface with external processor over

SPI or I2C interface

– Data interface with external processor over

MIPI D-PHY and CSI2 v1.1

– Interrupts for Fault Reporting

• 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

• IWR2243 advanced features

– Embedded self-monitoring with limited Host

processor involvement

– Complex baseband architecture

– Option of cascading multiple devices to

increase channel count

– 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 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

• Junction temperature range of –40°C to 105°C

2 Applications

• Industrial sensor for measuring range, velocity, and angle

• Robotics

• Traffic monitoring

• Security and surveillance

• Factory automation safety guards

• Imaging Radar using Cascaded Configuration

3 Description

The IWR2243 is an integrated single-chip FMCW transceiver capable of operation in the 76- to 81-GHz band.

This device enables unprecedented levels of integration in an extremely small form factor. IWR2243 is an ideal

solution for low power, self-monitored, ultra-accurate radar systems in the industrial space.

IWR2243 is a self-contained FMCW transceiver single-chip solution that simplifies the implementation of Radar

sensors. It is built on TI’s low-power 45-nm RFCMOS process, which enables a monolithic implementation of a

3TX, 4RX system with built-in PLL and ADC converters. Simple programming model changes can enable a wide

variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode

sensor. The IWR2243 device supports connection of multiple devices in cascade fashion. This enhances the

angular resolution to meet high performance radar sensor development.

Additionally, the device is provided as a complete platform solution including reference hardware design,

software drivers, sample configurations, API guide, and user documentation.