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| 型號(hào)： | MFRC52301HN1 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Contactless reader IC |
| 封裝： | MFRC52301HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;MFRC52301HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html& |
| 文件頁(yè)數(shù)： | 25/98頁(yè) |
| 文件大?。?/td> | 1666K |
| 代理商： | MFRC52301HN1 |
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MFRC523
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.7 — 8 November 2011
115237
25 of 98
NXP Semiconductors
MFRC523
Contactless reader IC
8.4.3
Serial data switch
Two main blocks are implemented in the MFRC523. The digital block comprises the state
machines, encoder/decoder logic. The analog block comprises the modulator and
antenna drivers, the receiver and amplifiers. It is possible for the interface between these
two blocks to be configured so that the interfacing signals are routed to pins MFIN and
MFOUT. This topology allows the analog block of the MFRC523 to be connected to the
digital block of another device.
The serial signal switch is controlled by the TxSelReg and RxSelReg registers.
Figure 20
shows the serial data switch for TX1 and TX2.
8.4.4
MFIN and MFOUT interface support
The MFRC523 is divided into a digital circuit block and an analog circuit block. The digital
block contains state machines, encoder and decoder logic, etc. The analog block contains
the modulator and antenna drivers, receiver and amplifiers. The interface between these
two blocks can be configured to enable the interfacing signals to be routed to pins MFIN
and MFOUT; see
Figure 21 on page 26
. This configuration is implemented using
TxSelReg register’s MFOutSel[3:0]/DriverSel[1:0] bits and RxSelReg register’s
UARTSel[1:0] bits. This topology allows some parts of the analog block to be connected to
the digital block of another device.
Switch MFOutSel in the TxSelReg register can be used to measure MIFARE and
ISO/IEC14443 A related signals. This is especially important during the design-in phase
or for testing purposes as it enables checking of the transmitted and received data.
The most important use of pins MFIN and MFOUT is found in the active antenna concept.
An external active antenna circuit can be connected to the MFRC523’s digital block.
Switch MFOutSel must be configured so that the internal Miller encoded signal is sent to
pin MFOUT (MFOutSel = 100b). UARTSel[1:0] must be configured to receive a
Manchester signal with subcarrier from pin MFIN (UARTSel[1:0] = 01).
It is possible to connect a passive antenna to pins TX1, TX2 and RX (using the
appropriate filter and matching circuit) and an active antenna to pins MFOUT and MFIN at
the same time. In this configuration, two RF circuits can be driven (one after another) by a
single host processor.
Remark:
Pins MFIN and MFOUT have a dedicated supply on pin SVDD with the ground
on pin PVSS.
Fig 20. Serial data switch for TX1 and TX2
001aak593
INTERNAL
CODER
INVERT IF
InvMod = 1
DriverSel[1:0]
00
01
10
11
3-state
to driver TX1 and TX2
0 = impedance = modulated
1 = impedance = CW
1
INVERT IF
PolMFin = 0
MFIN
envelope
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| MFRC52301HN1,151 | 功能描述:RFID應(yīng)答器 IC TRANSMISSION MOD 32-HVQFN RoHS:否 制造商:Murata 存儲(chǔ)容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC52301HN1,157 | 功能描述:RFID應(yīng)答器 IC TRANSMISSION MOD 32-HVQFN RoHS:否 制造商:Murata 存儲(chǔ)容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC52301HN1/TRAYB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Contactless reader IC |
| MFRC52301HN1/TRAYBM | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Contactless reader IC |
| MFRC52302HN1,151 | 功能描述:RFID應(yīng)答器 CONTACTLESS READER IC RoHS:否 制造商:Murata 存儲(chǔ)容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
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