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Variable capacitors have capacitance values that can be varied by applying voltage to their electrodes.
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Variable capacitors have capacitance values that can be vari...
VACs are passive components with capacitance values that can be varied according to the control voltage. They can be considered for applications such as frequency adjustment.
Murata offers products suited to the HF band (13.56 MHz) used for near field communication (NFC)
Merits of using VAC for NFC
Smartphone, mPOS Terminal, NFC Door Reader, NFC Vending Machine, Payment Ring...etc.
To change the capacitance, apply for DC voltage to V_tune terminal.
It does not change even if AC voltage is applied.
You can use the single-end connection as described above.
The same characteristics as differential connection are obtained.
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