ABRACON IS

CERTIFIED

ABRACON IS

ISO9001:2008

CERTIFIED

NFC Ferrite Antenna (13.56MHz)

MATCHING CIRCUIT AND REFERENCE VALUES

tions. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where

component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and

authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information.

Component

Value for reference

Notes

L0

560 / 330nH

（

NXP / Broadcom)

EMC filter resonance at 15.4MHz（NXP) and 20.6MHz

(Broadcom).

C0

180pF

EMC filter resonance at 15.4MHz (NXP) and 20.6MHz

(Broadcom).

C1

33pF

Antenna matching component, to achieve series resonance at

13.56MHz. (Note: Antenna matching component value may

need optimization depending upon antenna environment)

C2 (Includes C2a and

C2b values)

82pF

Antenna matching component, to achieve parallel resonance

at 15MHz. (Note: Antenna matching component value may

need optimization depending upon antenna environment).

Rq

0 Ohm

Damping resistor, the Rq resistor used to lower Q-value if

above 35 Ohm, if needed.

Note (1) Values can change depending upon drive circuits, design of the antenna and environment.

25 x 25 mm

ANFCA-2525-A02

2 Faraday, Suite# B

Ph. 949.546.8000

LLC