Loading ...
Loading ...
Loading ...
SDS2000X HD Series Digital Oscilloscope User Manual
7 4 i n t . s i g l e n t . c o m
Normal mode
Average mode（128）
Note: Average acquisition is only valid for periodic signals, and it is important to ensure that the
waveform is triggering stably when using average mode.
ERES: In this mode, the oscilloscope digitally filters the sampling points, which can reduce the
broadband random noise on the input signal and improve the signal-to-noise ratio, to improve the
effective resolution (ENOB) of the oscilloscope. The ERES processing of SDS2000X HD is realized
by the hardware engine, so it can still maintain a high waveform refresh rate when eres is turned on.
Normal mode ERES (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
-3dB bandwidth
0.5
0.25*Sample rate
1
0.115*Sample rate
1.5
0.055*Sample rate
2
0.028*Sample rate
2.5
0.014*Sample rate
3
0.007*Sample rate
Loading ...
Loading ...
Loading ...