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参数资料
| 型号： | M34559G6FP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52 |
| 封装： | 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52 |
| 文件页数： | 18/93页 |
| 文件大小： | 1810K |
| 代理商： | M34559G6FP |
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CLRC663
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Preliminary data sheet
COMPANY PUBLIC
Rev. 3.1 — 26 September 2011
171131
114 of 126
NXP Semiconductors
CLRC663
Contactless reader IC
23. Application information
A typical application diagram using a complementary antenna connection to the CLRC663
is shown in Figure 36.
The antenna tuning and RF part matching is described in the application note Ref. 1 and
23.1 Circuit description
The matching circuit consists of an EMC low pass filter (L0 and C0), a matching circuitry
(C1 and C2), and a receiving circuits (R1 = R3, R2 = R4, C3 = C5 and C4 = C6;), and the
antenna itself.
For more detailed information about designing and tuning an antenna please refer to the
Application notes
MICORE reader IC family; Directly Matched Antenna Design, Ref. 1 and
MIFARE (14443A) 13.56 MHz RFID Proximity Antennas, Ref. 2.
23.1.1 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 CLRC663 and is also the basis for driving the antenna
with the 13.56 MHz energy carrier. This will not only cause emitted power at 13.56 MHz
but will also emit power at higher harmonics. The international EMC regulations define the
amplitude of the emitted power in a broad frequency range. Thus, an appropriate filtering
of the output signal is necessary to fulfil these regulations.
Fig 36. Typical application antenna circuit diagram
001aam269
VDD
PVDD
MICRO-
PROCESSOR
host
interface
TVDD
XTAL1
XTAL2
RXN
VMID
TX1
TVSS
TX2
9
825
18
19
VSS
33
20
13
14
17
16
15
14
21
28-31
32
PDOWN
IRQ
7
DVDD
AVDD
12
RXP
CLRC663
R1
L0
C1
Ra
C1
L0
R2
R4
C0
C2
CRXN
CRXP
Cvmid
R3
27.12 MHz
antenna
Lant
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M34559G6-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8FP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGCFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGC-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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