This document describes the hardware and software strategies used by Agilent in the new DirectDrive console DD2 to generate waveforms for solid-state NMR experiments.
The document explains how digital waveform patterns are created and initiated using special pulse-sequence statements in VamrJ 3.1 software, offering faster and more reliable execution compared to traditional loop constructions. These patterns are executed by special hardware in the DD2 RF controller, which allows for high-speed access to memory and reuse of patterns.
| Phase resolution | ~0.0055° |
|---|---|
| Amplitude range | 160 dB |
| Minimum timing step | 25 ns |
Users program waveform patterns with pulse-sequence code run by the MR-system software, VamrJ 3.1.
The minimum timing step is 25 ns with a resolution of 12.5 ns.