Pause Between Multiple Marked Samples; Vector Markers - Keysight M8121A User Manual

Pause Between Multiple Marked Samples

Vector Markers

Keysight M8121A Arbitrary Waveform Generator User Guide
Vector Clock
Marked Samples relative
to Vector Clock Granularity
Sample Marker
Figure 19
Due to the quantization of markers, a minimum pause between blocks of
marked samples is required to see the gap at the sample marker output.
Table 4
Mode
12-bit direct
14-bit direct
INT_x3 (Option -DUC)
INT_x12 (Option -DUC)
INT_x24 (Option -DUC)
INT_x48 (Option -DUC)
The table above shows the minimum gap size between blocks of multiple
marked samples/IQ sample pairs. If this condition is violated, it might be
possible to get one "combined marker" instead two individual markers.
In addition to the high-speed marker, each channel provides a second
marker called vector marker. This vector marker can only be set in vector
clock granularity.
The vector marker is an output of the pattern generation. Delay
adjustments do not change the delay of the vector marker.
Samples marked by sample marker
Pause between multiple marked samples
Minimum Gap Size
128 Samples
128 samples
8 IQ Sample Pairs
2 IQ Sample Pairs
1 IQ Sample Pairs
1 IQ Sample Pairs
Markers 4
65