ADAV4601 System Design Document Confidential Information
Rev.1 August 2009 Analog Devices Page 62
Filters Wizard
This wizard controls any filter cell created in SigmaStudio. It automatically supports single and multiple filter cells.
The filters can be controlled by cut off frequency (gain will be a fix value for the frequency range) or by gain (cut off
frequency will be fix for the gain range).
Figure 60: Select Gain or Frequency control
The filter selected (either gain or frequency controlled) should have as well a filter shape or type.
Filter Wizard: Gain Control
A filter controlled by gain will have all the frequency related parameters fixed. Writing to the gain value field, the
gain response of the filter will change.
Figure 61: Filter control for Gain (dB)
Filter Wizard: Frequency Control
A filter controlled by frequency will have all the gain related parameters fixed. Writing to the cut off frequency value
field, the cut off frequency response of the filter will change.
Figure 62: Filter control for Frequency (Hz)
1) Select Filter Type
2) Set Slope and
3) Configure Default,
Range and Step Size
4) Set Default Cut off
If ticked, writing a 0 to the
field will disable the filter
5) Select OK
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