Teledyne SP Devices' PXIe ADQ7WB card digitizer.

Teledyne SP Devices’ ADQ7WB card digitizes signals up to 6.5 GHz

  • Teledyne SP Devices announces the launch of the ADQ7WB signal digitizing card, available in PCIe or PXIe format.
  • This board, with two inputs, samples signals with 12-bit resolution in analogue frequency bands up to 6.5 GHz with a sampling rate of up to 5 GS/s per channel.

The ADQ7WB digitizer provides direct sampling and transfer of intermediate (IF) or radio (RF) signals with an instant bandwidth of up to 1 GHz in the frequency range 1 MHz to 6.5 GHz. This reduces noise and costs since, according to Teledyne SP Devices, external mixers and local oscillators (LO) are no longer necessary.

The down-conversion software option can be configured to individually separate up to four IF/RF sub-bands and convert them to baseband for further processing. This can be useful in applications implementing satellite navigation system (GNSS) receivers that typically use three sub-bands with different centre frequencies.

In addition to the on-board real-time signal processing capabilities, the ADQ7WB also supports continuous data transmission to the host PC or GPU. GPU Peer-to-peer streaming at speeds up to 7 GB/s offers the ability to implement real-time signal processing on FPGA-based processing systems, GPUs, or both hardware platforms.

For spectrum monitoring applications, functions such as frequency triggering can be implemented on an FPGA, for example, while a GPU is used for intensive computational processing such as Fast Fourier Transformations (FFT). For applications requiring offline analysis, such as SAR or spectral radar recording, the ADQ7WB module provides high-speed data transfer to the storage unit.

Teledyne SP Devices’ signal digitisation cards use a manufacturer’s own digital technology to improve the best performance in terms of dynamics (SFDR for spurious-free dynamic range). The ADX real-time error correction function operates in the background to remove unwanted performance degradation artifacts in time-interlaced analog-to-digital converters (TIADCs).