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THDB_ADA - Minimum Supported Frequency

Honored Contributor II



As indicated in the thdb_ada's user's guide (http://www.terasic.com.tw/cgi-bin/page/archive_download.pl?language=english&no=278&fid=7d33a4a8e787c8097d947da7050859ed), DC signals (and low frequency AC signals) are not supported for AD/DA conversion operations. Furthermore, I couldn't find any information about the minimum supported AC signal frequency of the given daughterboard, since I need an ADA daughterboard, which has the ability of sampling AC signals with frequencies from 5 Hz to 100 kHz. Do you guys know any information about the minimum supported frequency of this daughtercard? 


After some search, I found another ad/da data conversion card (http://www.terasic.com.tw/cgi-bin/page/archive.pl?language=english&categoryno=73&no=360) in the Terasic website. According to its User's Guide, I couldn't see any restriction about the type of signals (i.e., AC or DC). I wonder does this daughtercard support DC signals ? 


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