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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
| DSP Theory Algorithms and Architectures |
| 7th - 10th September, Glasgow, UK. more>> |
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| Femtocells Americas |
| 16th - 17th Nov, San Diego. 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 7 October 2009
Andrew Bateman: ab@dspstore.com
Tel: +44 (0)1225 723 349 |
| Signum Systems |
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Cortex-A8 and OMAP3 Debug Solution JTAGjet-OMAP3 offers development and debug support for Texas Instruments OMAP34x, 35x and 36x applications processors. 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. more>> |
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| Spectrum Digital |
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OMAP-L137 EVM Now Available!
This EVM is used for development of the OMAP-L137 processor with a C674x floating point processor and ARM926EJ both running at 300 MHz. more>> |
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| Blackhawk |
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The Blackhawk USB100- get entry-level performance for a very small price. It has a USB 2.0 port, 14-pin & 20-pin (cTI) JTAG headers with support for Code Composer v3.3 and v4. Incredibly simple and inexpensive for TI TMS320 DSPs more>> |
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| Red Rapids |
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Let the Softwave Transmitter PCI/PCIe card pair convert your Windows or Linux PC into a full-featured broadband RF transmitter with a 4 GHz tuning range and over 150 MHz modulation bandwidth. more>> |
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| Avren Events |
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Femtocells Americas
San Diego, Nov 16th - 17th more>> |
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DSP Articles
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Enabling Image Format Conversion in FPGAs by Altera |
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Broadcast infrastructure systems - such as servers, switchers, head-end encoders, and specialty studio displays - support a multitude of input image formats, and commonly require images to be converted to high definition (HD) or a different resolution before they can be stored, encoded, or displayed. While specialized ASSPs have addressed this market with varying degrees of success, the challenge has been to address the extremely diverse and application-specific requirements of broadcast equipment vendors with a single chip. For example, overall delay is very important in switcher applications, latency is a key factor for displays and video-conferencing systems, and image quality is a high priority for post-production equipment. In addition to these specific application needs, the devices must also support a multitude of frame rates, resolutions, and formats. more>> |
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Infinite Impulse Response Filter Structures in Xilinx 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 white paper 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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