Bitshark Express RX | Epiq Solutions

Bitshark™ Express RX

PCI Express Card Software Defined Radio

Product Brief

Press Release

Bitshark™ Express RX

The Bitshark™ Express RX is a broadband, high performance single tuner RF receiver card that provides a PCI Express x1 interface allowing transfer speeds up to 2.5 Gb/sec. It supports a tuning range between 300 MHz and 4 GHz and user-defined channel bandwidths up to 50 MHz. Digitized baseband I/Q samples are provided by dual A/D converters, and are accessible to the PCIe host or on board Xilinx® Spartan®-6 LX45T FPGA.

The Bitshark™ Express RX is targeted at commercial wireless radio applications including software defined radio (SDR) and cognitive radio (CR). A wide range of frequency bands are supported:
• GSM (850/900/1800/1900 MHz) • iDEN (800 MHz) • CDMA2K/EVDO (450/800/1900/2100 MHz) • UMTS (Bands I-XIV) • TD-SCDMA (1.9/2.0/2.4 GHz)	• WiFi/802.11b/g (2.4 GHz) • WiMAX/802.16 d/e (2.3-2.7 GHz, 3.3-3.8 GHz) • LTE (Bands 1-40) • TV Whitespace (400-700 MHz) • ...plus many others

Key Features

Single RF tuner covering 300 MHz to 4 GHz
Configurable baseband channel filter bandwidths up to 50 MHz
Direct conversion (zero-IF) architecture
Integrated high-stability 26 MHz TCXO
Dual 14-bit 105 MSPS A/D converters
Low-jitter programmable A/D sample clock with 1 Hz resolution
Integrated GPS receiver with 1PPS
Xilinx® Spartan®-6 LX45T FPGA
128MB DDR3 Memory
Includes PC-based spectrum analyzer application
Windows and Linux compatible

Block Diagram

Preliminary specification, subject to change

Reference Design

To enable evaluation and integration of the Bitshark™ Express RX card with the PCIe interface, an example spectrum analyzer application is delivered with the Express RX. This consists of an FPGA reference bitstream and a cross-platform PC-based spectrum analyzer application for displaying data received from the Express RX card.

Also included with the Bitshark™ Express RX is a Linux-based software library that provides an easy-to-use interface for both configuration and sample acquisition from the Bitshark™ FMC-1RX card over the PCIe bus.

FPGA Reference Design

Features of the FPGA Reference Design:

A/D high-speed data interface (LVDS synchronization / deserialization)
SPI-based interface for A/D control (writing to A/D internal registers)
DC offset correction block
I/Q imbalance correction block

The Bitshark™ Express RX Development Kit (Bitshark™ Express-RX-DVK) comes with the Verilog source code (with unlimited use license) for the FPGA reference design described above.

Spectrum Analyzer

Features of the PC-based spectrum analyzer:

Control of FMC-1RX configuration (RF center freq, RF gain, baseband gain, baseband filter bandwidth, A/D sample rate)
Display of time domain plot
Display of frequency domain plot
Display of I vs Q plot
Compatible with multiple host operating systems

The Bitshark™ Express RX Development Kit (Bitshark™ Express-RX-DVK) comes with the Java source code (with unlimited use license) for the Spectrum Analyzer application described above.

Pricing

Item	Contents	Price
Bitshark™ Express RX	Bitshark™ FMC-1RX card PCIe host card Hardware User's Reference Manual Pre-compiled FPGA bitstream for the FPGA reference design implementing a spectrum analyzer application using the Xilinx® Spartan®-6 LX45T PC-based spectrum analyzer application	$4300	Request Quote
Bitshark™ Express RX DVK	Bitshark™ FMC-1RX card PCIe host card Hardware User's Reference Manual Verilog source code (with unlimited use license) for FPGA reference design implementing a spectrum analyzer application using the Xilinx® Spartan®-6 LX45T Java source code for PC-based spectrum analyzer application	$6300	Request Quote

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