MFRC52201HN1/TRAYB NXP [NXP Semiconductors], MFRC52201HN1/TRAYB Datasheet - Page 26

• Manufacturer Part Number: MFRC52201HN1/TRAYB
• Description: Contactless reader IC
• Manufacturer: NXP [NXP Semiconductors]

Fig 21. Overview of MFIN and MFOUT signal routing
DIGITAL MODULE
TX bit stream
RX bit stream
MFRC522
MANCHESTER
DECODER
Remark: Pins MFIN and MFOUT have a dedicated supply on pin SVDD with the ground on pin PVSS. If pin MFIN is not
used it must be connected to either pin SVDD or pin PVSS. If pin SVDD is not used it must be connected to either pin DVDD,
pin PVDD or any other voltage supply pin.
MILLER
CODER
Sel[1:0]
UART
0
1
2
3
LOW
Manchester with subcarrier
internal modulated
NRZ coding without subcarrier (> 106 kBd)
RX serial data stream
TX serial data stream
internal envelope
reserved
test bus
3-state
HIGH
LOW
0
1
2
3
4
5
6
7
MFOutSel[3:0]
DEMODULATOR
SUBCARRIER
MFOUT
MFIN
envelope from pin MFIN
internal envelope
3-state
HIGH
0
1
2
3
DRIVER
Sel[1:0]
MODULATOR
DEMODULATOR
ANALOG MODULE
MFRC522
DRIVER
001aak594
TX2
TX1
RX