IWR1843中文资料集成 DSP、MCU 和雷达加速器的 76GHz 至 81GHz 单芯片工业雷达传感器数据手册TI规格书

描述 Description

The IWR1843 device is an integrated single-chip mmWave sensor based on FMCW radar technology capable of operating in the 76- to 81-GHz band with up to 4-GHz continuous chirp. The device is built with the low-power 45-nm RFCMOS process from Texas Instruments. This solution enables unprecedented levels of integration in an extremely small form factor. The IWR1843 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 IWR1843 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81 GHz. The IWR1843 includes a monolithic implementation of a 3TX, 4RX system with built-in PLL, and A2D converters. The IWR1843 also integrates a DSP subsystem, which contains a TI 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. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher-level algorithms. Additionally, the device is provided as a complete platform solution including TI reference designs, software drivers, sample configurations, API guides, training, and user documentation.

特性 Features

• FMCW transceiver
• 76- to 81-GHz coverage with 4 GHz available bandwidth
• Three transmit channels
• TX power: 12 dBm
• Built-in calibration and self-test (monitoring)
• Built-in firmware (ROM)
• C674x DSP for FMCW signal processing
• Cortex-R4F microcontroller for object tracking and classification, and interface control
• Integrated peripherals
• Host interface
• Other interfaces available to user application
• Up to 2 SPI channels
• I2C
• 2-lane LVDS interface for raw ADC data and debug instrumentation
• IWR1843 advanced features
• Complex baseband architecture
• Programmable phase rotators in transmit path to enable beam forming
• Power management
• I/Os support dual voltage 3.3 V/1.8 V
• Clock source
• Supports externally driven clock (square/sine) at 40 MHz
• Easy hardware design
• Small solution size