Wideband digitiser data transfer rates meet 5G applications

The ADQ7WB allows for direct sampling and transfer of intermediate (IF) or radio (RF) signals with up to 1GHz instantaneous bandwidth within the frequency range 1MHz to 6.5GHz.

This approach results in improved noise performance and lower cost as external mixers and local oscillators (LOs) are not needed.

The intuitive digital down-converter firmware option can be configured to separate up to four individual IF/RF sub-bands and convert them to baseband for subsequent processing.

One example of use is in Global Navigation Satellite System (GNSS) receivers which typically use three sub-bands with different center frequencies.

In addition to the real-time onboard signal processing capabilities, the ADQ7WB digitiser also supports continuous data streaming to the host PC or GPU.

The GPU peer-to-peer streaming with rates of up to 7Gbyte/s offers great flexibility to implement real-time signal processing either in the FPGA, GPU, or both.

For spectrum monitoring applications, functions such as advanced frequency trigger can be implemented in the FPGA while the GPU is used for computationally intensive processing such as fast Fourier transforms (FFTs) with extreme resolution bandwidth.

For applications requiring offline analysis, for example SAR radar or spectrum recording, ADQ7WB also supports high-speed streaming to disk storage.