Data Sheet

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Param. Default Min Max Name Description
D00 01 00 09 Hold time Index value to select an element of the hold time array defined with the parameters
A00 … A09.
This value has no effect if the parameter use hold time potentiometer S0C
isenabled.
D01 07 00 09 Sensitivity Index value to select an element of the sensitivity array defined with the parameters
A10…A19.
This value has no effect if the parameter use sensitivity potentiometer S0D
isenabled.
D02 03 00 10 Immunity Value to change the immunity against interferences like vibrations.
00: minimum immunity
10: maximum immunity
Immunity increases the reaction time of the sensor.
D03 02 00 02 Direction to detect Defines which direction is detected in the detection algorithm.
00: only forward (approaching)
01: only backward (receding)
02: both directions
D04 00 00 7F Low speed limit Can be used to define a low speed limit in bin for the detection algorithm to filter out
slow speeds.
00: inactive
01…7F: All speeds below this bin are filtered out
D05 00 00 7F High speed limit Can be used to define a high speed limit in bin for the detection algorithm to filter out
fast speeds.
00: inactive
01…7F: All speeds above this bin are filtered out
D06 00 00 7F Speed range
threshold
Function to divide the spectrum in a high and a low speed range. Triggers the range
flag in the detection register R00.
00: inactive
01…7F: threshold in bin for the low and high speed range
D07 06 05 09 Micro detection
threshold
Function to set the threshold of the micro detection feature.
05: minimum threshold
09: maximum threshold
D08 02 00 0A FFT filter width Defines the ± width in bin that is filtered out around a specified filter in the FFT filter
array defined with the parameters A20…A27.
Param. Default Min Max Name Description
A00…
A09
See table
below
0000 FFFF Hold time array 10 elements wide hold time array in 100 ms, addressed by parameter D00.
0000: minimum hold time
0002: 2*100 ms " 0.2 s hold time
FFFF: maximum hold time
A10…
A19
See table
below
0000 00FF Sensitivity array 10 elements wide sensitivity array in dB, addressed by parameter D01.
0000: maximum sensitivity
000A: 10 dB sensitivity
00FF: minimum sensitivity
A20…
A27
0 0000 007F FFT filter array FFT filter array in bin to define up to 8 different FFT filters with a ± width defined by
parameter D08.
0000: FFT filter inactive
0001…007F: FFT filter position in bin
Param. A00 A01 A02 A03 A04 A05 A06 A07 A08 A08
Value [Hex]
0002 0005 000A 0014 0032 0064 00C8 0190 0320 0640
Value [s]
0.2 0.5 1 2 5 10 20 40 80 160
Param. A10 A11 A12 A13 A14 A15 A16 A17 A18 A19
Value [Hex]
0022 001C 0016 0012 000E 000A 0006 0004 0002 0000
Value [dB]
34 28 22 18 14 10 6 4 2 0
Table 9: Class D 8-Bit detection parameters
Table 10: Class A 16-Bit array parameters
Table 11: Hold time array default values
Table 12: Sensitivity array default values