| Pentek, a supplier of board-level and system-level technologies, has recently introduced a popular software radio transceiver module, the 7142. The 7142 PMC module provides complete software radio transceiver functions for IF or RF communication systems and improves performance, including dual Virtex-4 FPGAs , 4 A/D converters, and half the storage. The module also offers a variety of form factors, such as PCI, 3U and 6U cPCI, and PMC conduction cooling types.  The module's built-in clock/sync bus supports multi-module synchronization and provides dual on-board oscillators for independent input and output clock rates. The bus supports synchronization of local oscillator phases, frequency switching, tenth filter phases, and data acquisition of multiple 7142 modules.
A motherboard acts as a master and outputs clock, sync, and gate signals to the front panel flat cable bus using low voltage differential signaling (LVDS). One master can drive seven slaves. A Pentek Model 9190 clock and sync generator can drive the signals, and 80 motherboards can be run simultaneously. The digitized RF signals from the four 14-bit 125 MHz A/D converters can be sent to the Virtex-4 SX55 FPGA for signal processing or to other module resources. These resources include a DC-to-160 MHz digital upconverter, a 16-bit 500 MHz D/A converter, 768MB of DDR2 SDRAM, and the Virtex-4 FX FPGA for I/O. The FX device includes a PCI bus interface and 9-channel DMA controller, and a VITA 42-compatible XMC dual 4x Gigabit serial interface, with a switch rate of up to 2.5GBps in each direction. The factory preset Virtex-4 SX55 functions include transient capture, advanced trigger modes, waveform playback, and control and programming interfaces for other onboard resources. It is these Virtex-4 FPGAs that improve performance for users, using advanced technology to reduce power consumption and increase clock speed, with performance equivalent to two DSP slices, significantly enhancing DSP slice capabilities. The module's FPGA resources are all open to users. In addition to using factory pre-programming, customers can also use Pentek's Gateflow development tools to implement their own DSP and data processing functions on the Model 7142. These tools are provided in kits for each FPGA. The SX55 design kit allows users to add their own IP to the FPGA, which is particularly suitable for signal processing-focused algorithms. The SX55 uses 512 DSP slices and is particularly suitable for demodulation/modulation, decoding/encoding, decryption/encryption, digital delay and channelization between reception and transmission. The FX design kit can install IP cores for various Gigabit switches, including Serial RapidIO, PCI Express and Aurora. The Model 7142 alternative replaces the SX55 with the LX100 FPGA and is suitable for devices that require a large number of logic slices. Its GateFlow design kit supports this model. The Model 7142 also benefits from Pentek's device-callable C ReadyFlow Board support library. ReadyFlow simplifies board operation and setup with simple function calls, providing access to all of the device's hardware. Pentek support libraries, device drivers and software development tools and third-party software run on a variety of operating systems: first Linux, then Windows and VxWorks. The 7142 PMC module is available in eight to 10 weeks and is priced at $13,500. The 7242 6U cPCI board, 7342 3U cPCI board and 7642 PCI board are also available. | 
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