Signal Phase Delays Within The Clipx And Over The Clipx Bus - HBM ClipX Bedienungsanleitung

6.12

Signal phase delays within the ClipX and over the ClipX bus

The various modules in the ClipX are combined into a number of groups, each with fixed
cycle times. This makes it easier to calculate the total phase delay of a signal. The fol-
lowing diagrams indicate the phase delays of the various groups as well as any poten-
tial additions you might need to allow for the hardware of inputs/outputs. To calculate
the maximum phase delay of signals running through more than one group, such as
min/max values obtained from calculated channels, simply add together the phase
delays of the respective groups.
Pay attention to the sequencing of the analysis within a group. If source signals are
formed only later in the group, this will double the phase delay until the result is avail-
able.
Phase delays of A/D converter plus digital filter
Some filter frequencies are only possible with a DC amplifier, and are identified accord-
ingly. The bandwidth with DC and the digital filter switched off (Filter OFF) is 3800 Hz.
The filter phase delay is then 0 ms, meaning the phase delay of the A/D converter with
no filter is 260 μs.
Cut-off frequency in Hz
3000 (DC only)
2500 (DC only)
2000 (DC only)
1500 (DC only)
1000 (DC only)
800 (DC only)
750 (DC only)
600 (DC only)
500 (DC only)
400 (DC only)
350 (DC only)
280 (DC only)
ClipX
Electrical connections, LEDs
Phase delay with Bessel
filter in ms
0.403
0.432
0.475
0.547
0.690
0.798
0.833
0.977
1.120
1.335
1.489
1.796
Phase delay with Butter-
worth filter in ms
0.480
0.524
0.590
0.700
0.920
1.085
1.140
1.360
1.580
1.910
2.146
2.617
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