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C-to-FPGA Integration Accelerates Prototyping 10X. more>> |
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New DaVinci™ DM37x video processors from Texas Instruments. more>> |
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Analog Devices - JESD204A Data Converters Reduce Power and Board Space. more>> |
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RF Engines Feature rich IP core offers fast route to production. more>> |
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Analog Devices Introduces Data Converter with Dynamic Power Control. more>> |
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FC300 OFDM IP Core Helps OEM Customers Reduce Development Time. more>> |
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Octasic Introduces New Multi-Core DSP Device for Video. more>> |
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Actel Announces Power Management Solution for SmartFusion FPGA. more>> |
Events
| Embedded Masterclass 2010 |
| 6th & 11th May, UK. more>> |
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| DSP for FPGAs |
| 12th - 15th April, Glasgow, UK. more>> |
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| Digital Signal Processing Theory and Application |
| 15th - 17th June, Oxford, UK. more>> |
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About Us
If you would like to feature your product or
article in the next issue of DSP e-Newsletter please contact
the editor: Publication
date is 5 April 2010
Andrew Bateman: ab@dspstore.com
Tel: +44 (0)1225 723 349 |
| SEED International |
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SEED-XDS560PLUS JTAG Emulator is the most cost-effective XDS560-class USB emulator for TI DSP's, fully compatible with TI emulator roadmap and CCStudio. Blow Budget, Beyond Expectation more>> |
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| Curtiss-Wright Controls |
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The high performance, low power CHAMP-AV5 multi-processing DSP board brings the floating point performance of the Intel Core i7 architecture to demanding sensor processing, data logging, and storage applications. more>> |
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| Enea |
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Enea Supports New LSI StarPro 2700 Family of Multicore Media and Baseband Processors. This integrated platform maximizes developer efficiency while unleashing the full power of LSI's latest multicore processor family. more>> |
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| Innovative Integration |
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X5-G12 PCI Express XMC Module with Dual channel 1 GSPS,12-bit Digitizer, Virtex5 FPGA and 512MB Memory, 300 GMAC/s, Excellent choice for demanding applications such as RADAR & direct RF digitizing. more>> |
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| Spectrum Digital |
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Low Power DSP Dev Kit Now Available. The TMS320VC5505 Eval Module from Spectrum Digital provides a ready to use platform for development with TI's low power C5000 DSP family. more>> |
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| Blackhawk |
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Like all the capabilities and price of the XDS100v2 from TI, but feel left out because it’s not supported by CCStudio v3.3? Blackhawk has the answer with a free upgrade more>> |
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| Digital Voice Systems Inc |
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Digital Voice Systems, Inc. offers the highest quality, low-bit-rate speech compression available, in a variety of software (DSPs, Windows/PC, etc.) and hardware solutions - vocoder chips, boards, and Ethernet-enabled VCUs. more>> |
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| Red Rapids |
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No FPGA programming required! Signal Stream performs signal acquistion and generation with a rich set of software selectable features. Multiple product options available in a wide range of sample rates.. more>> |
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| Signum Systems |
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DM365 Linux Debugging the Easy Way. The JTAGjet-DaVinci now supports embedded Linux on the TI DM365 digital media processor. JTAGjet-DaVinci comes with Chameleon Debugger requiring no serial or Ethernet port. more>> |
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DSP Articles
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Infinite Impulse Response Filter Structures in FPGAs by Michael Francis, Xilinx |
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A large percentage of filters implemented in the digital domain are Finite Impulse Response (FIR) filters. These filters are used over a wide range of sample rates and are well supported in terms of tools, software, and IP cores. Another type of digital filter is the Infinite Impulse Response (IIR) filter, which tends not to be so well supported and is generally used in the lower sample rates, that is, less than 200 kHz. The IIR filter, known as a recursive filter, uses feedback to compute outputs.
This article covers the different kinds of IIR filters and structures, and, with the use of The MathWorks® tools, shows how these structures can be mapped to the Xilinx® FPGA architecture. A final consideration is how to pipeline IIR filters to support higher sample rates. more>> |
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An Introduction to Sampled Data Systems by Walt Kester & James Bryant, Analog Devices |
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There are two key concepts involved in the actual analog-to-digital and digital-toanalog conversion process: discrete time sampling and finite amplitude resolution due to quantization. An understanding of these concepts is vital to DSP applications. more>> |
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