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Software Radio PMC Module

Wed, 02/25/2009 - 10:46am
Pentek, Inc.'s Model 7153 digital down converter (DDC) is a 4-channel, high-speed digitizer PMC module designed for processing baseband RF or IF signals from a communications receiver. Four of these 200 MHz, 16-bit monolithic A/Ds in the front end of the Model 7153 deliver a previously unattainable combination of speed and resolution. In addition, these A/Ds exhibit a signal-to-noise ratio of 75 dBFS and a spurious-free dynamic range of 87 dBc at a 70 MHz input frequency. The Model 7153 DDC offers two modes of operation. The 2-channel DDC mode sacrifices 2 DDC channels to boost the maximum decimation to 65,536 and extend the lower bandwidth limit down to 3 kHz. The four-channel DDC mode provides an independently programmable decimation range from two to 256 on each DDC, covering signal bandwidths from about 700 kHz to 90 MHz.

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