mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 92
mfrc522
Manufacturer Part Number
mfrc522
Description
Contactless Reader Ic
Manufacturer
NXP Semiconductors
Datasheet
1.MFRC522.pdf
(109 pages)
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NXP Semiconductors
24. Application information
112132
Product data sheet
Fig 32. Typical Application Circuit Diagram
Processor
µ-
Interface
Host
The figure below shows a typical circuit diagram, using a complementary antenna
connection to the MFRC522.
The antenna tuning and RF part matching is described in the application note
Ref.
IR
Q
2.
IRQ
PVDD
PVSS
NRSTPD
DVDD
AVSS
OSCIN
supply
RC522
AVDD
27,12
MHz
Rev. 3.2 — 22 May 2007
OSCOUT
TVD
DVSS
VMID
TVSS
D
TX1
TX2
RX
R1
C
vmid
L0
L0
C
Rx
C0
C0
R2
C1
C1
C2
C2
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
Ra
Ra
Ref. 1
Antenna
Lant
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