A digital TRM is a high-performance device that features the following:

• Wide-bandwidth RF-sampling digital-to-analog converter (DAC), capable of generating one or more channels simultaneously
• Wide-bandwidth RF-sampling analog-to-digital converter (ADC), capable of acquiring many channels simultaneously
• Many high performance digital signal processing (DSP) functions applied to the stream of data coming to and from the ADCs and DACs
• High-speed serial interface (SERDES) that allows you to transmit (TX) and receive (RX) data at high rate, synchronized by internal or external clocks and triggers
• Control interface, configured using a specific digital protocol such as SPI or LVDS, to set up the device for different speeds, bit widths, and special digital signal processing within the device.

Testing this DUT requires the following tasks:

1. Setting up the digital TRM modes of operations and registers though the digital control interface (LVDS/SPI). You can use other NI devices that support LVDS or SPI to accomplish these tasks.
2. Synchronizing and coordinating many systems to excite the DUT (through the Digital Signal Transceiver Driver).
3. Using the high-speed serial interface to send and receive I/Q signals (through the Digital Signal Transceiver Driver).
4. Generating RF test signals and acquiring many RF responses from the RF front end of the device. Use NI-RFmx capabilities with a Vector Signal Transceiver (VST) for measurements or signal generation.