Pentek Rolls Out Rugged Multiband Digital Receiver PMC Module

3/31/2005 - Demonstrating its commitment to offer ruggedized products for applications in extreme environments, Pentek, Inc., announced a new version of its Model 7131 16-channel multiband digital receiver PMC (PCI mezzanine card) module. Like its namesake, the 7131-702 features two 14-bit 105 MHz A/Ds and four quad digital receivers. This board also couples the Virtex-II FPGA (field programmable gate array) technology with these channelized software radio functions, providing over two million gates available for user customization. Most importantly, the module achieves Pentek's highest level of convection-cooled ruggedization, joining the 6821, 6822 and 7140 PMC and VME boards as part of Pentek's growing family of ruggedized board products.

The Model 7131-702 targets software radio applications including synchronous data communications, direction-finding, wireless telecom, satellite communications, wireless LAN and high-frequency sonar. Ruggedization now makes the Model 7131 especially well suited for stressful environments such as unmanned aerial vehicles (UAVs) and other combat applications. It has an operating temperature range of -20C to 65C and a storage range of -40C to 100C. It is qualified for 20 g shock, 2 g sine vibration and 0.04 g/Hz random vibration. A conformal coating is also available that extends operating range to 100 percent relative humidity and protects the board from environmental contaminants.

"With its full complement of resources and extremely flexible architecture, the Model 7131 can tackle a wide variety of applications in communications, signal intelligence and data acquisition," said Rodger Hosking, vice president of Pentek. "These new ruggedization levels now extend the deployment space into harsh environments covering a significant range of important military and aerospace platforms."

Flexible Configuration, Switching and Synchronization
The Model 7131-702 accepts two analog inputs on front-panel SMA connectors, either from baseband HF sources or IF outputs from communications receivers. Each of the two inputs is transformer coupled and digitized by a 14-bit A/D converter capable of operating at sample rates up to 105 MHz. The sample clock is derived either from an internal crystal oscillator or an external clock supplied through a front panel SMA connector.

This board also includes four quad multiband digital receiver chips driven by the samples from both A/Ds. Each device includes four receiver channels capable of independent center frequency tuning from DC to 40 MHz with output bandwidths ranging from 4 kHz to 2.5 MHz. A crossbar switch allows all sixteen receiver channels to independently select either of the two A/D inputs. The front-panel clock/sync bus allows one 7131-702 to act as a master, driving the sample clock out to a front-panel cable using LVDS differential signaling. Multiple slaves can be then clocked synchronously with the master.

Customer-Configurable FPGA
The Model 7131-702 is equipped with either XC2V1000 or XC2V3000 FPGA devices from the Xilinx Virtex-II family, offering logic densities of one or three million gates, respectively. The FPGA is factory-configured to perform standard modes of data packing, formatting and channel selection. An optional FPGA developer's kit is available for custom applications to take advantage of the 70 percent unused resources within the optional XC2V3000 FPGA. Also supported are Pentek's GateFlow IP cores, such as pulse compression algorithms and FFTs (Fast Fourier Transforms), so customers can take immediate advantage of FPGA technology.

Pricing & Availability
The Model 7131-702 starts at $7,495 US with availability at 8-10 weeks ARO. ReadyFlow board-support packages are available to speed development tasks, and both Linux and Windows drivers are available to allow high-level programming on workstations. Driver source code is included, allowing users to modify software functionality. For more information on the Model 7131-702, visit the Pentek website at:

About Pentek
Pentek develops, manufactures and markets innovative Digital Signal Processing, Software Radio and Data Acquisition boards and systems to original equipment manufacturers, distributors and value-added resellers. Pentek offers powerful VME, VXS, PMC, XMC and cPCI boards and systems featuring Texas Instrument's C6000 DSPs, Motorola's G4 PowerPC and Xilinx FPGAs. Pentek's I/O includes A/Ds, D/As, digital receivers and upconverters and more. Pentek equips products with high-performance interfaces including gigabit serial links, RACE++ and FPDP-II and offers strong DSP software support.

Pentek, ReadyFlow and GateFlow are registered trademarks of Pentek, Inc.

North American Sales Contact:
Mario Schiavone, Pentek, Inc., One Park Way, Upper Saddle River, NJ 07458-2311; telephone 201-818-5900, ext. 756; fax 201-818-5904; email, web site

International Sales Contacts:
VSystems SA in France at 13007 0060, VSystems Electronic GmbH in Germany at 89 273 7630, VSystems s.r.l. in Italy at 11.966 1319, VSystems Scandinavia in Sweden at 8 444 15 50, VSystems UK at 1494 476000, WTI in Israel at 99-563163 and MISH International in Japan at 42-538-7650.

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