SNOA954D November 2019 – June 2021 LDC0851 , LDC1001 , LDC1001-Q1 , LDC1041 , LDC1051 , LDC1101 , LDC1312 , LDC1312-Q1 , LDC1314 , LDC1314-Q1 , LDC1612 , LDC1612-Q1 , LDC1614 , LDC1614-Q1 , LDC2112 , LDC2114 , LDC3114 , LDC3114-Q1
A special case of rotation sensing can be referred to as event counting, which usually is intended to measure rotational rate. This is illustrated in the lower section of Figure 1-1. By monitoring periodic target interactions, such as interactions with gear teeth, the rotation rate of motor can be measured. The LDC0851 Event Counting Reference Design is an example of an LDC measurement of this type of configuration.
LDC-based event counting can also be used for control knobs for HMI; refer to 32 Position Encoder Knob for one such implementation using the LDC0851.