 USRP N200 系列 - 以太网软件无线电Ettus Research™ 的 USRP™ 使得工程师可以快速的设计和搭建一个强大、灵活且独立的软件无线电系统。配置不同的 RF 子板，它可以满足不同软件无线电应用：从 DC 到 6 Ghz
的需求。基于 USRP2 的成功，USRP N200 系列提供更高质量的性能和更大的灵活性。系列包括满足定制需求的 USRP N210 和低成本解决方案的 USRP N200。 高速和高精度的 ADC 和 DAC 使得系统能够处理更宽带宽更高动态范围的信号。千兆级的以太网接口使得 USRP 构建的无线系统能够同时发射和接受高达 50 MHz 带宽的 RF 信号。USRP N200 系列构建于 Xilinx® Spartan® 3A-DSP FPGAs，它适于 DSP 的应用，使得复合信号能够被高速采样。USRP N210 基于强大的 FPGA，几乎是 USRP N200 的 150% ，来迎合特殊的需求。 两种型号的高采样率的处理，诸如数字上和下变频，是在 FPGA 中完成的。低采样率的操作可以在宿主或内含 32 位 RISC 处理器的 FPGA 中完成。USRP 的配置和固件存储在板上的闪存中，这使得对其的编程通过以太网便可容易完成。 两路板上数字下变频 （DDC）混频、滤波、和抽取（始于 100 MS/s) 汇聚于 FPGA 的信号。在把其变换为要输出的频率之前的两路数字上变频插值使得基带信号于 100 MS/s。DDC 和 DUC 结合高采样率还使得模拟滤波的要求大大简化。 多个 USRP 可以联系在一起形成用于 MIMO 模式的完全相干多天线系统。主振荡器可以锁定到外部的参考时钟，为此 的 1PPS 的输入是用来迎合高精度的应用的。内部也有一个可选的 GPSDO。 与其配合的子板提供了灵活、无缝的 RF 前端设备。丰富、可选的子板提供了 DC 到 6 GHz 选择范围。请到 ettus.com 站点了解其子板系列。 特性 -FEATURES
OPENSOURCEThe USRP N200 series firmware, drivers, and FPGA design are open source. When combined with the open source GNU Radio software, you get an open software radio system enabling host-based signal processing on commodity platforms. No software or licenses need to be purchased. It provides a complete development environment to create your own radios.The Universal Hardware Driver (UHD) provides support for the USRP hardware under Linux, Mac OS X and Windows sharing the same architecture to enable cross platform development. The UHD enables support for National Instruments LabVIEW™. ORDERINGINFORMATIONModel Part Number USRP N200…………………………………..……. UN200-KITUSRP N210………………………………………… UN210-KIT For a complete list of available models and accessories, please refer to ettus.com/order ABOUT ETTUS RESEARCH Ettus Research specializes in low cost, high quality software defined radio (SDR) systems. USRP systems all over the world enable users to address a broad range of research, academic, industrial, and defense applications. The USRP platform is designed to address applications that require RF modulations in frequencies up to 6GHz with wide bandwidths and MIMO setups. A few example application areas include white spaces, mobile phones, public safety radio, land mobiles, broadcast TV, FM radio, satellite navigation, and amateur radio bands. The company was founded in 2004 and is based in Mountain View, California. As of February 5, 2010, Ettus Research LLC operates as a wholly owned subsidiary of National Instruments Corporation (NASDAQ:NATI). Tel: +1-650-967-2870 S P E C I F I C AT I O N SI n p u t2 Input Channels or 1 I-Q PairSample Rate: 100 Ms/s Resolution: 14 bits SFDR: 88 dB O u t p u t2 Output Channels or 1 I-Q PairSample Rate: 100 Ms/s Resolution: 16 bits SFDR: 80+ dB T i m i n g & S y n c h r o n i z a t i o nPPS Input: 3-5 V dcReference Clock: 5 or 10 MHz Connector Type: SMA MIMO Expansion port A u x i l i a r y I / OHigh-Speed Digital I/O: 32 bitsAnalog Input: 4 channels Analog Output: 4 channels F P G AUSRP N200: Xilinx® Spartan®3A-DSP1800USRP N210: Xilinx® Spartan® 3A-DSP3400 B a n d w i d t h50 MHz Instantaneous bandwidth (8 bit mode)25 MHz Instantaneous bandwidth (16 bit mode) Full Duplex P o w e r R e q u i r e m e n t s6VDC, 3A(includes daughterboard requirements) S u p p o r t e d O p e r a t i n g S y s t e m s• Linux• Mac OS X • Windows DataSheet - USRP N200 Series - Ethernet Software Radio Systems |
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