AWR2944数据手册TI中文资料规格书

描述 Description

AWR294x 是一款单芯片毫米波传感器，由能够在 76GHz 至 81GHz 频段内工作的 FMCW 收发器、雷达数据处理元件和车载网络外围设备构成。 AWR294x 采用 TI 的低功耗 45nm RFCMOS 工艺制造，并且在小型封装中以超低 BOM 数量实现了出色的集成度。 AWR294x 是适用于汽车领域中低功耗、自监控、超精确雷达系统的理想解决方案。

TI 的低功耗 45nm RFCMOS 工艺可实现具有集成 PLL、VCO、混频器和基带 ADC 的单片实施 3-4 TX、4 RX 系统。DSP 子系统 (DSS) 中集成了 TI 的高性能 C66x DSP，可用于处理雷达信号。该器件包含一个无线电处理器子系统 (RSS)，该子系统负责雷达前端配置、控制和校准。在主要子系统 (MSS) 中，该器件实现了一个用户可编程的 Arm Cortex-R5F 处理器，允许自定义控制和汽车接口应用。硬件加速器块 (HWA 2.0) 通过卸载通用雷达处理（例如 FFT、恒定误报率 (CFAR)、扩展和压缩）来对 DSS 和 MSS 进行补充。这会节省 DSS 和 MSS 上的 MIPS，为自定义应用和更高级别的算法腾出了资源。

器件中还提供了硬件安全模块 (HSM)（仅适用于安全器件型号）。HSM 由可编程 Arm Cortex-M4 内核和必要的基础设施组成，用于在器件内提供安全的操作区域。

简单编程模型更改可支持各种传感器实施（近距离、中距离和远距离），并且能够进行动态重新配置，从而实现多模式传感器。

此外， AWR294x 作为完整的平台解决方案进行提供，其中包括 TI 硬件和软件参考设计、软件驱动程序、示例配置、API 指南以及用户文档。

特性 Features

• FMCW transceiver
• Integrated PLL, Transmitter, Receiver, Baseband and ADC
• 76-81 GHz coverage with 5GHz available Bandwidth
• 4 Receive and 3 – 4 Transmit channels (AWR2943 with 3 channels & AWR2944 with 4 channels) for PCB interface to antennas
• Per Transmit phase shifter
• Ultra-Accurate Chirp engine based on fractional-N PLL
• TX power
• 12 dBm

• RX noise Figure
• 13 dB

• Phase Noise @ 1MHz
• -96 dBc/Hz [76 to 77 GHz]
• -95 dBc/Hz [76 to 81 GHz]


• Built in calibration and Self-Test
• Built in Firmware (ROM)
• Self-calibrating system across process and temperature

• Processing Elements
• ARM R5F ® Core [Supports lock step operation]
• TI Digital Signal Processor C66x
• TI Radar Hardware Accelerator (HWA2.0) for operations like FFT, Log Magnitude, memory compression etc..
• Multiple EDMA Instances for Data Movement

• Host Interface
• 2x CAN-FD
• 10/100 Mbps RGMII/RMII/MII Ethernet

• Supports a Serial Flash Memory Interface (loading user application from QSPI flash memory)
• Other Interfaces Available to User Application
• Up to 9 ADC Channels
• 2 SPIs
• 4 UARTs
• I2C
• GPIOs
• 3 EPWMs
• 4-Lane Aurora LVDS Interface for Raw ADC Data and Debug Instrumentation
• CSI2 Rx interface to enable playback of the captured data

• On Chip RAM
• 3.5 – 4 MBytes (AWR2943 with 3.5MB & AWR2944 with 4MB)
• Memory space split between DSP, MCU, and shared L3

• Device Security (on select part numbers)
• Programmable embedded Hardware security module (HSM)
• Secure authenticated and encrypted boot support
• Customer programmable root keys, symmetric keys (256 bit), Asymmetric keys (up to RSA-4K or ECC-512) with Key revocation capability
• Crypto hardware accelerators - PKA with ECC, AES (up to 256 bit), SHA (up to 512 bit), TRNG/DRGB

• Functional Safety-Compliant targeted
• Developed for functional safety applications
• Documentation will be available to aid ISO 26262 functional safety system design
• Hardware integrity up to ASIL B targeted

• AEC-Q100 qualified
• Advanced Features
• Embedded self-monitoring with no external processor involvement
• Embedded interference detection capability

• Power Management
• On die LDO network for enhanced PSRR
• LVCMOS IO supports dual voltage 3.3V/1.8V

• Clock source
• 40 MHz crystal with internal oscillator
• Supports external oscillator at 40 MHz
• Supports externally driven clock (Square/Sine) at 40 MHz

• Cost Reduced Hardware Design
• 0.65mm pitch, 12 mm × 12 mm flip chip BGA package for easy assembly and low cost PCB design
• Small solution size

• Supports Automotive Temperature Operating Range
• Operating junction temperature range: –40°C to 140°C