Outline
1 Introduction 2 The USRP Family 3 Existing Products 4 New Products
Outline
1 Introduction 2 The USRP Family 3 Existing Products 4 New Products
Introduction
Ettus Research founded in 2004
Acquired by National Instruments in Feb 2010 Now operating as a wholly-owned subsidiary Based in Mountain View, CA
Build a community of users Keep a very low overhead
Fit into the niche between consumer-level and test equipment level price and performance
Engineering Model
Use mid-sized, low-cost FPGAs
Allow user to reprogram, build o of our open-source IP
Leverage from, and give back to the Open Source community Rapid design turnaround, keep up with the latest chips and capabilities
Outline
1 Introduction 2 The USRP Family 3 Existing Products 4 New Products
Goals
Very low cost
Interchangeable RF sections Wide bandwidth
Extreme exibility MIMO-capability
Create a community of user-developers Developed in parallel with GNU Radio Don't constrain what the user does
Architecture
USRP Motherboard interfaces computer to analog
Bus or network interface to host FPGA
Dual high-speed ADCs and DACs for Quadrature signals Low speed ADCs and DACs for RSSI, gain ctrl, etc. Clock generation
GPIOs, I2C, SPI
Interchangeable daughterboards convert analog baseband to RF
Quadrature Up/Downconverters VCO/PLL for LO
UHD
Works on Linux, Mac, Windows
Using CMAKE for cross-platform build system
Windows build with Visual Studio, Cygwin, MinGW
LabVIEW, Simulink, GNU Radio, OpenBTS, and OSSIE all support UHD now
Supports all of our hardware transparently Dual-license model (GPL + Other) Handles arbitrary MIMO con gurations
FPGA Design
Digital up- and downconverters
CORDIC algorithm
Decimation and Interpolation
CIC and halfband lters
Data formatting, packetizing, and bus interfacing Daughterboard Control
Precise timing
Outline
1 Introduction 2 The USRP Family 3 Existing Products 4 New Products
USRP1
Introduced in 2005 USB 2.0 Interface
8 MHz of RF bandwidth at 16 bits per sample
Altera Cyclone I FPGA
64 MS/s 12-bit ADCs, 128 MS/s 14-bit DACs 2x2 MIMO capable
USRP2, N200-series
Gigabit Ethernet interface
25 MHz of RF bandwidth at 16 bit samples
Xilinx Spartan 3-2000 FPGA (USRP2)
Xilinx Spartan 3A DSP 1800A (N200) or 3400A (N210) 100 MS/s 14-bit ADCs, 400 MS/s 16-bit DACs
External 10 MHz reference and PPS input MIMO Expansion
Support for in-box GPSDO $1400-$1700
USRP E100-series
Embedded computer built-in OMAP3530
720 MHz ARM Cortex A8 with oating point SIMD extensions 520 MHz TI C64x xed-point DSP
Spartan 3A DSP (-1800 on E100, -3400 on E110) High-speed bus between FPGA and OMAP Audio In/Out, HDMI video
10/100 Ethernet
USRP Embedded Highlights
Runs REAL LinuxNo need to choose between GPP, DSP, or FPGA processing Can develop directly on E100/E110
Develop on desktop with USRP1/2/N210, deploy (same code!) on Embedded
Uses UHD
Low power, no laptop
Embedded Usage Model
Network testbeds Wireless sensor nodes Public safety nodes Picocells
Daughterboards
BasicRX and BasicTX Transformer-coupled breakout board LFRX and LFTX Dual DC-30 MHz
TVRX2 Dual 50 MHz to 860 MHz receive-only DBSRX2 800 MHz to 2.4 GHz receive-only RFX (all full duplex, 50-100 mW output power)
RFX900 800-1000 MHz RFX1200 1100-1400 MHz RFX1800 1500-2100 MHz RFX2400 2300-2900 MHz XCVR2450 2.4-2.5 GHz, 4.9-5.9 GHz WBX 50 MHz to 2.2 GHz, Full duplex SBX 400 MHz to 4.4 GHz, Full duplex
Outline
1 Introduction 2 The USRP Family 3 Existing Products 4 New Products
E1x0 revision
E110 Large FPGA version available
Spartan 3A-DSP 3400 like N210
B100
Modernized version of USRP1 Xilinx Spartan 3A-1400 FPGA
Supports a common architecture with N2x0 and E1x0 series Supports all UHD capabilities
USB 2.0 Interface
8 MHz of RF bandwidth at 16 bits per sample 64 MS/s 12-bit ADCs, 128 MS/s 14-bit DACs Flexible Clocking like E1x0
10 MHz and 1 PPS inputs Onboard TCXO
CBX
Full duplex RF transceiver 2 GHz to 6 GHz RF coverage 50 to 100mW output power
Similar architecture to WBX and SBX Coming end of 2011
WCDMA GDB
Grand-daughterboard for WBX 1W (peak) ampli ers
All diplexers and lters for UMTS bands II, IV, V
Covers all US mobile phone bands
GPS band lter for GPS receive Great for making Femtocells Coming Q1 2012
QR-210
4-Way Receive, 700 MHz-4 GHz
8-Way IF-input version on request
Very high linearity, low noise Extremely low phase noise
50-60 MHz instantaneous BW on each antenna Virtex 5
Future Directions
Four product areas
Ultra-Low cost devices
High bandwidth and dynamic range devices Embedded devices