Hello Team,
I have gone through LDC0851 user guide , in that you have mention that only 32 position it can detect, can you elobrate in CPR/PPR.
we want to design rotary encoder using inductive technology with PPR 1024. can LDC0851 support 1024 PPR, if not please suggest other chip which can support.
Is there any evaluation board with 1024 PPR or any reference design .
Regards,
Sayali
Hello Sayali,
The Inductive Sensing 32-Position Encoder Knob Reference Design using the LDC0851 discusses how to achieve the 32 positions in section 6.5:
If you were to scale this to 1024, you could run into coil size constraints depending on the size of the wheel. If there is enough space to have a coil that works with the 1024 positions, then the LDC0851 can work. You can use the Inductive Sensing Design Calculator Tool to design a coil for the available space. If there is not enough space for a sufficient coil design, you could switch the approach and measure the angle of rotation instead using something like the TIDA-00508.
Best Regards,
Justin Beigel
