參數(shù)資料
型號(hào)： CLRC63201T
廠商： NXP Semiconductors N.V.
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Multiple protocol contactless reader IC (MIFARE-I-CODE1)
封裝： CLRC63201T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 5, 2005,;
文件頁數(shù)： 11/126頁
文件大?。?/td> 719K
代理商： CLRC63201T
CLRC632_35
NXP B.V. 2009. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.5 — 10 November 2009
073935
108 of 126
NXP Semiconductors
CLRC632
Multiple protocol contactless reader IC (MIFARE/I-CODE1)
15.1.2 Circuit description
The matching circuit consists of an EMC low-pass lter (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 lter
The MIFARE system operates at a frequency of 13.56 MHz. This frequency is generated
by a quartz oscillator to clock the CLRC632. 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 dene the
amplitude of the emitted power over a broad frequency range. To meet these regulations,
appropriate ltering of the output signal is required.
A multilayer board is recommended to implement a low-pass lter as shown in Figure 27.
The low-pass lter consists of the components L0 and C0. The recommended values are
given in Application notes
MICORE reader IC family; Directly Matched Antenna Design
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 inuence on the overall performance of the lter.
15.1.2.2
Antenna matching
Due to the impedance transformation of the low-pass lter, the antenna coil has to be
matched to a given impedance. The matching elements C1 and C2 can be estimated and
have to be ne 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 and
ISO/IEC 14443 B communication schemes. Environmental inuences have to considered
and common EMC design rules.
Refer to Application notes
MICORE reader IC family; Directly Matched Antenna Design
MIFARE (14443 A) 13.56 MHz RFID Proximity Antennas Ref. 2 for details.
Remark: Do not exceed the current limits (IDD(TVDD)), otherwise the chip might be
destroyed.
Remark: The overall 13.56 MHz RFID proximity antenna design in combination with the
CLRC632 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 CLRC632 makes use of both subcarrier load modulation
side-bands. No external ltering is required.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CLRC63201T/0FE 制造商:NXP Semiconductors 功能描述:
CLRC63201T/0FE,112 功能描述:RFID應(yīng)答器 I.CODE HS READER 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
CLRC63201T/0FE,118 制造商:NXP Semiconductors 功能描述:Interface Misc
CLRC63201T/0FE112 制造商:NXP Semiconductors 功能描述:CNTCLESS RC 5V ISO14443 + ISO15693
CLRC663 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Contactless reader IC
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