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參數(shù)資料
| 型號： | MFRC53001T |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | ISO-IEC 14443 A Reader IC |
| 封裝： | MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 5, 2005,;MFRC53001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1 |
| 文件頁數(shù)： | 97/115頁 |
| 文件大?。?/td> | 2590K |
| 代理商： | MFRC53001T |
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MFRC530_33
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.3 — 6 July 2010
057433
97 of 115
NXP Semiconductors
MFRC530
ISO/IEC 14443 A Reader IC
15.1.2
Circuit description
The matching circuit consists of an EMC low-pass filter (L0 and C0), matching circuitry
(C1 and C2), a receiver circuit (R1, R2, C3 and C4) and the antenna itself.
Refer to the following application notes for more detailed information about designing and
tuning an antenna.
MICORE reader IC family; Directly Matched Antenna Design
Ref. 1
MIFARE (14443 A) 13.56 MHz RFID Proximity Antennas
Ref. 2
.
15.1.2.1
EMC low-pass filter
The MIFARE system operates at a frequency of 13.56 MHz. This frequency is generated
by a quartz oscillator to clock the MFRC530. It is also the basis for driving the antenna
using the 13.56 MHz energy carrier. This not only causes power emissions at 13.56 MHz,
it also emits power at higher harmonics. International EMC regulations define the
amplitude of the emitted power over a broad frequency range. To meet these regulations,
appropriate filtering of the output signal is required.
A multilayer board is recommended to implement a low-pass filter as shown in
Figure 24
.
The low-pass filter consists of the components L0 and C0. The recommended values are
given in Application notes
MICORE reader IC family; Directly Matched Antenna Design
Ref. 1
and
MIFARE (14443 A) 13.56 MHz RFID Proximity Antennas
Ref. 2
.
Remark:
To achieve best performance, all components must be at least equal in quality to
those recommended.
Remark:
The layout has a major influence on the overall performance of the filter.
15.1.2.2
Antenna matching
Due to the impedance transformation of the low-pass filter, the antenna coil has to be
matched to a given impedance. The matching elements C1 and C2 can be estimated and
have to be fine tuned depending on the design of the antenna coil.
The correct impedance matching is important to ensure optimum performance. The
overall quality factor has to be considered to guarantee a proper ISO/IEC 14443 A
communication scheme. Environmental influences have to considered and common EMC
design rules.
Refer to Application notes
MICORE reader IC family; Directly Matched Antenna Design
Ref. 1
and
MIFARE (14443 A) 13.56 MHz RFID Proximity Antennas
Ref. 2
for details.
Remark:
Do not exceed the current limits (I
DD(TVDD)
), otherwise the chip might be
destroyed.
Remark:
The overall 13.56 MHz RFID proximity antenna design in combination with the
MFRC530 IC does not require any specialist RF knowledge. However, all relevant
parameters have to be considered to guarantee optimum performance and international
EMC compliance.
15.1.2.3
Receiver circuit
The internal receiver of the MFRC530 makes use of both subcarrier load modulation
side-bands. No external filtering is required.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MFRC53001T/0FE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ISO/IEC 14443 A Reader IC |
| MFRC53001T/0FE,112 | 功能描述:RFID應(yīng)答器 MIFARE HS READER RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC53001T/0FE,518 | 功能描述:RFID應(yīng)答器 IC READER 13.56MHZ RoHS:否 制造商:Murata 存儲容量:512 bit 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| MFRC53001T/0FE112 | 制造商:NXP Semiconductors 功能描述:CNTCLESS RC 3.3V ISO14443-A/B |
| MFRC531 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Short Form Specification |
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