User Manual

Medio S004 EVM
Example of an asynchronous communication (SetIO command – 115200 Bps)
Example of a synchronous communication (SetIO command)
5.2 A-VSA Antenna description
The A-VSA is a 13.56MHz resonant antenna designed according to the following schematic:
Rp
Cp
Cs
L
Parameter Value
Nominal working frequency 13,560MHz
Number of 0,2mm turns 6
Internal turn dimensions 22mmx37mm
External turn dimension 39mmx54mm
PCB inductance (L) 2400nH
Damping Resistor (Rp) 15000 Ohm
Parallel Capacitor (Cp) ~39pF
Serial Capacitor (Cs) ~15pF
Q factor 28
20/33 Revision 1.1 October 2006