100 MHz, 16-Channel PXI Digital Waveform Instrument—The PXI‑6561 is a digital waveform generator and analyzer for interfacing with 20 low‑voltage signaling (LVDS) digital pins. The PXI‑6561 can sample digital waveforms at up to 100 MHz and interface with common LVDS voltage levels. The PXI‑6561 also features advanced synchronization capabilities for building integrated mixed-signal test systems.