Data Sheet

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Function Description
Direction Signals the direction of the detected target.
Low  Backward/receding movement
High  Forward/approaching movement
This output is only valid together with a valid detection
Angle Signals if the angle of the detected target is below or above the angle threshold parameter.
Low  Angle is below the angle threshold
High  Angle is above the angle threshold
This output is only valid together with a valid detection
Range Signals if the distance of the detected target is below or above the range threshold parameter.
Low  Distance is above the range threshold
High  Distance is below the range threshold
This output is only valid together with a valid detection
Speed Signals if the speed of the detected target is below or above the speed threshold parameter.
Low  Speed is below the speed threshold
High  Speed is above the speed threshold
This output is only valid together with a valid detection
Micro detection The micro detection indicates if there is a very slow movement in the front of the sensor. It is independent from the detection
filter and described in detail in the chapter Micro detection on page 7.
Table 7: Routable functions for digital outputs 1 to 3
Digital outputs
The sensor features four digital outputs to signal
detection. The digital output 0 always signals if there
was a valid detection. The function of the outputs 1 to
3 is configurable over the radar parameter structure.
It is possible to route the values of the detection data
structure DDAT to these outputs.
Hold time and micro detection retrigger
The time how long the detection output stays activa-
ted after the last valid detection can be adjusted with
the hold time parameter.
Furthermore, it is possible to retrigger the detection
algorithm using the micro detection feature (see pa-
rameter micro detection in the parameter structure).
If this feature is enabled, the detection algorithm first
requires a valid detection and then, if there was a valid
micro detection, it will retrigger the hold time. If the
hold time has elapsed because there was no detec-
tion or micro detection, the detection goes to low
and needs again a valid detection before the micro
detection is used to retrigger the hold time.
If the micro detection retrigger feature is
enabled and there is a constant small mo-
vement in the front of the sensor it will ret-
rigger the hold time continuously.