Kemo 1600W filter modules are a modified version of the 1600
series filter modules, general specification, circuit layout, pin layouts and
labelling are all the same.
1600 Filter Module pdf data sheet (43 kB) file.
The 1608 filter modules use 8 unlatched control lines to set the filter module
cut-off frequencies, in multiples of the base frequency.
HOWEVER only 100 of the frequency steps are used, The steps provide a
psuedo-logarithmic set of frequency steps over a 1792:1 range.
A 20 Hz base frequency filter gives 100 filter steps in the range 20 Hz to 35
840 Hz.