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3
SIGNAL QUALITY ENHANCEMENT
3.1 Digital Baseline Stabilizer
The Digital Baseline Stabilizer, DBS, is designed for pulse data measurement where high accuracy rel-
ative a known baseline is required. The key features of DBS are:
•
Tracks and compensates for baseline variations from, for example, temperature and aging.
•
Suppresses pattern noise
•
Automatically locks the baseline to a user defined-value.
Note that DBS is off at power up. DBS has to be activated by the user's application software. The time
when DBS is activated is important. To get a good initial estimate, DBS should be activated when there
is very little signal energy present at the input. If there is too much signal power in the initial estimate,
the convergence of DBS is slowed down.
Note that DBS is defined for systems with a baseline and distinct short pulses. DBS is not intended for
sinusoidal type of signals.
1. Pattern noise is systematic errors that may arise from the actual design of the ADC IC or the board design.
19-2302 A
2020-09-16
1
to 22 bits precision.
ADQ8-4X Manual
19-2302 A 2020-09-16
11(46)
11(46)
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