Digital Down Converter core implemented on Quixote's Virtex-II, provides digital receiver front-end to IP and physical layer test bench developers.

The free Xilinx DDC logic core has been fully integrated in Quixote's logic and is delivered standard with any Quixote model. This makes for a powerful, off-the-shelf digital receiver, with unmatched flexibility for downstream processing. The DDC is the first building block of any wireless and wireline communication. The module accepts input signal sampled at 105 MHz, down converts a desired frequency band-of-interest to baseband using a mixer, and adjusts the sample rate by a programmable factor between 4 and 1048512. Quixote-I can now be configured as a front-end digital receiver feeding straight into C6416, while Quixote-II and III allow custom firmware developer to integrate their IP on the 1M or 6M gate Virtex-II. With unmatched integration of analog I/O, FPGA, DSP and reconfigurable external IO port on a single cPCI card, Quixote is an incredible platform for communication physical layer development work, IP development, hardware testing and field testing.

	http://www.innovative-dsp.com/quixote
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High-speed recording/playing over ChanneLink with Quixote and Conduant's StreamStor

The Phantom I/O site on Quixote offers a flexible digital interface to external hardware at up to 600MB/sec. Used with our Phantom ChanneLink mezzanine card, Quixote connects straight to off-the-shelf high-speed data recording hardware like Conduant's StreamStor compactPCI816 controller. Such off-the-shelf hardware performance is simply unmatched in the industry. Quixote can sample two 14-bit A/D channels at up to 105MHz, perform optional processing on the Virtex-II and channel a gap-free data stream straight to the StreamStor controller. The path direction can be reversed and the system can be used as a player as well. Application fields include wireless and broadband hardware development and field testing, signal intelligence, vector signal generation, RADAR field testing, ultrasound development, high-speed physics research.

	http://www.innovative-dsp.com/quixote				http://www.conduant.com/cpci816.htm
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Data Logger supports WAV files, MP3 compression added in Armada libraries

Our host side DataLogger software component has a new property that allows users to log data in WAV format. This allows playing and post-processing of the recorded data with Windows player style utilities. The proper file header is added to the raw binary data file, giving the data user-friendly portability. A public domain MP3 compression algorithm has also been integrated into our Armada toolset. Data acquired with our high-end data acquisition cards can now be streamed directly to this MP3 component for compression. The component supports file input or a data I/O interrupt-driven mechanism for continuous streaming. Professional audio apps can be developed in minutes with our DAQ card ChicoPlus fitted with our stereo 24-bit A/D. Armada is a huge collection of host side data movement and data processing tools for very fast deployment of Windows high-speed applications using our data acquisition/playback cards or the Matador DSP cards.

	http://www.innovative-dsp.com/armada				http://www.innovative-dsp.com/chicoplus
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Direct Digital Synthesizer provides digitally-controlled agile timebase and much more.

All our DSP and DAQ boards are equipped with Direct Digital Synthesizer (DDS). What function does a DDS provide and how can end-users utilize this advanced feature? This CMOS device is essentially a digitally-programmable frequency synthesizer and clock generator. It uses an accurate external clock source to generate a stable frequency and phase-programmable digitized analog output sine wave. The device also contains an internal high-speed comparator to convert the signal to a low jitter square-wave output. This provides DSP boards with an agile timebase that can be routed to the trigger pin of A/D and D/A converters. Keep in mind that the DDS clock source can be an on-board crystal or an external signal from other hardware, providing easy system integration. On our boards, the output pin of the DDS is also routed to a co-ax connector. This can be a valuable resource in systems requiring frequency/phase agile sine wave synthesis. Applications include clock recovery, locking circuitry, arbitrary or frequency sweep signal generation. It is also used to generate signals such as modulated waves for radio testing. The DDS gives an agile source for PSK, AM and FM systems. Sometimes it is simply used as a very flexible timebase that can also be easily locked on some external absolute timebase like IRIG, using a simple software routine reading a counter. The frequency tuning, control and phase modulation words are asynchronously loaded into the DDS via parallel or serial format of 40 bit total. One 32-bit frequency work allows extremely fine time resolution like 0.01Hz steps on a 40MHz timebase. Five bits of programmable phase modulation resolution enable phase shift increments of 11.25°. The remaining 3 bits control an optional multiplier, loading format and power. Our software libraries demonstrate the device usage and provide simple configuration functions in the API.

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