Tuning capacitance specification vs tuning reference value

AN4409

6/8

DocID025583 Rev 1

Table 2 here after summarizes the M24LRXXE-R and M24SRXX-Y tuning parameters

For more information about the target tuning capacitance for antenna design, please refer to

the application note AN3942 “M24LR series internal capacitance considerations for antenna

tuning” that discusses this point in details for the M24LR series.

Table 2. Tuning parameters for M24LRXXE-R and M24SRXX-R

M24LRXXE-R

M24SRXX-R

Antenna tuning

frequency

13.56MHz-14MHz

14MHz-14.4MHz

27.5pF

25pF

29pF

27.3pF