Product data

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MFRC631 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved. Product data sheet COMPANY PUBLIC
Rev. 3.3 — 4 February 2014
227433 39 of 120
NXP Semiconductors
MFRC631
High performance ISO/IEC 14443 A/B reader solution
Fig 27. Overview SIGIN/SIGOUT Signal Routing
001aam001
CODER
SIGOUTSel[4:0]
Sigpro_in_sel
[1:0]
SIGOUT
SIGIN
TX bit stream
DIGITAL MODULE
ANALOG MODULE
RX bit stream
0, 1
2
3
4
5
6
7
9
tri-state
LOW
HIGH
TX envelope
TX active
S3C signal
RX envelope
8RX active
RX bit signal
DECODER
SUBCARRIER
DEMODULATOR
TxCon.TxSel
[1:0]
0
1
2
3
No_nodulation
TX envelope
RFU
SIGIN
0
1
2
3
tri-state
internal analog block
SIGIN over envelope
SIGIN generic
MODULATOR DRIVER
TX2
TX1
RXN
RXP
DEMODULATOR