Test & Measurement
PCI Express Waveform Generators
Strategic Test, one of the world’s leading suppliers of PC-based instrument boards, has announced the availability of what it says is the the world’s first PCI Express based Arbitrary Waveform Generator boards. With synchronous multi-channel capability, the AWG boards are well suited for demanding signal processing applications that include I&Q signal generation, RADAR system development, communications testing, laser positioning, and HDTV signal generation.
There are four new AWG boards in the UF2e-6030 series with a choice of 1, 2 or 4 channels and 14-bit resolution. Each channel has its own 14-bit Digital-to-Analog Converter (DAC) to ensure synchronous output and a choice of three reconstruction filters (5th and 4th order Butterworth lowpass) giving bandwidths of 25 MHz, 5 MHz or 500 kHz. A no-filter option is also software-selectable.
Typical dynamic specifications include signal-to-noise ratio (SNR) of better than 61 dB, total harmonic distortion (THD) of less than 71.5 dB and spurious-free dynamic range (SFDR) greater than 72 dB.
As with all UltraFast instrument boards, the advanced sampling clock design consisting of a hardware divider and PLL allows the user great flexibility in defining their optimum sampling rate. In the case of the UF2e-6000 boards, the output rate can be freely selected between 1 kSample/s and the maximum rate of DAC. The driver automatically adjusts the on-board hardware to provide the closest sampling rate possible. This value can be returned to the user program.
A unique feature is that the board can be equipped with a second user selected quartz crystal oscillator for applications that require a highly accurate specific output rate.
The boards are supplied with 32 MSamples of signal memory as standard, but can be expanded to 2 GSamples through a proprietary onboard DIMM module.
As with all UltraFast AWG boards, the signals can be downloaded to on-board memory, output one time, or continuously until stopped, or continuously streamed gap-free from the host PC RAM or hard disks.
Prices start at $4190. All UltraFast boards are supplied with the free-of-charge SBench software that allows users to generate and output waveforms without programming. SBench is available for both Windows and Linux.