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SDS6000L User Manual
int. s i g l e n t . c o m 71
Normal mode
ERES mode (3-bit)
ERES acquisition does not require the signal to be periodic, nor does it require stable triggering, but
due to the digital filtering, the system bandwidth of the oscilloscope will degrade in ERES mode. The
higher the enhanced bits, the lower the bandwidth. The following table shows the relationship between
ERES bits and bandwidth:
Enhanced Bits
Equivalent Hi-Res
Enhanced Resolution
-3dB bandwidth
0.5
1
0.25*Sample rate
1
2
0.115*Sample rate
1.5
3
0.055*Sample rate
2
4
0.028*Sample rate
2.5
5
0.014*Sample rate
3
6
0.007*Sample rate
3.5
7
0.0035*Sample rate
4
8
0.0017*Sample rate
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