Key facts
- Deembedding in realtime for fast results
- Correction of cascaded signal paths
- Triggering on corrected signals
- Full bandwidth for all trigger types
Key facts
The realtime deembedding of signal path characteristics is based on S-parameters. Users benefit from highest acquisition speed even with activated realtime deembedding and precise triggering on compensated signal events up to the full instrument bandwidth.
Traditional deembedding capabilities are extended with flexible filter structures directly after the A/D converters. This allows waveform correction in realtime. The advantages over deembedding the acquired waveform during postprocessing are the measurement speed and instrument responsiveness. In addition, triggering on corrected waveforms is possible.
Realtime deembedding architecture
The pictures shows how the signal shape changes over a lossy signal path. With realtime deembedding the original signal can be reconstructed.
A cascade of signal path blocks can be defined for deembedding. The individual blocks are described by S-parameters that can be derived from simulation or measured with a vector network analyzer. The deembedding software automatically calculates the correction filter for the overall system response.
Menu to build up the signal path
The signal path can be described easily by graphically adding up blocks. Each block can be descibed by S-parameters.
Users can trigger on corrected waveforms and focus on debugging the true device characteristics. The unique digital trigger system operates with the sampling points of the A/D converter and the realtime deembedding filters. The trigger evaluates the real device signal since the distortion effects of the measurement path have been removed.
Correction of different cable length
A diff. signal is measured using a 20cm and a 2m cable, resulting in different rise-time and skew. Deembedding ON corrects losses, rise-time and skew.
In addition to the edge trigger, advanced trigger types such as pulse width, runt and setup & hold work up to the full bandwidth of the R&S®RTP. This enables fast isolation of high-frequency signal components. The trigger sensitivity is adjustable from 0 to 5 div and the trigger resolution can be extended up to 16-bit with the high definition mode. Users can reliably trigger on even the smallest signal details.
Stable trigger on pulse width <= 50ps
Stable trigger on a signal overshoot with pulse width of less than 50 ps
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