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參數資料
| 型號： | TK5552 |
| 廠商： | Atmel Corp. |
| 英文描述： | Read/Write Transponder |
| 中文描述： | 讀/寫轉發(fā) |
| 文件頁數： | 2/22頁 |
| 文件大?。?/td> | 326K |
| 代理商： | TK5552 |
2
TK5552
4698A–RFID–04/03
Figure 1.
Transponder and Base Station
General
The transponder is the mobile part of a closed coupled identification system (see Figure
1), where the read/write base station incorporates a reader IC such as the U2270B, and
the read/write transponder is based on the transponder IDIC.
The transponder is a plastic cube device consisting of the following parts:
The transponder antenna, realized as a tuned LC circuit
The read/write IDIC (transponder IC) with EEPROM
Transponder Antenna
The antenna consists of a coil and a capacitor for tuning the circuit to the nominal carrier
frequency of 125 kHz. The coil has a ferrite core to improve the distance of read (uplink)
and write (downlink) operations.
Read/Write IDIC
The read/write Transponder IDIC is part of the transponder TK5552. The data is trans-
mitted bi-directionally between the base station and the transponder. The transponder
receives power via a single coil from the RF signal generated by the base station. The
single coil is connected to the chip and also serves as the IC's bi-directional communica-
tion interface.
Data transmission is done by modulating the amplitude of the RF signal. Reading
(uplink) occurs by damping the coil by an internal load. Writing (downlink) occurs by
interrupting the RF field in a specific way. The TK5552 transponder operates at a nomi-
nal frequency of 125 kHz. Different bit rates and encoding schemes are available.
The on-chip 1056-bit EEPROM (32 block, 33 bits each) can be read (uplink) and written
(downlink) blockwise from the base station. The blocks can be protected against over-
writing by using lock bits. One block is reserved for setting the operation modes of the
IC.
See section “Transponder IC Read/Write Identification IC with 1k-bit Memory”.
Transponder IC
Transponder TK5552
RF field
Data
Power
Base station
(1)
Coil
C
(1) For a short distance U2270B read/write IC with MARC4 (see Figure 12)
Transponder IC + coil + C in plastic cube
相關PDF資料 |
PDF描述 |
|---|---|
| TK5552A-PP | Read/Write Transponder |
| TK5561A-PP | READ/WRITE CRYPTO TRANSPONDER FOR SHORT CYCLE TIME |
| TL061AMN | LOW POWER J-FET SINGLE OPERATIONAL AMPLIFIER |
| TL061B | LOW POWER J-FET SINGLE OPERATIONAL AMPLIFIER |
| TL061BC | LOW POWER J-FET SINGLE OPERATIONAL AMPLIFIER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TK5552A-PP | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Read/Write Transponder |
| TK5561A-PP | 功能描述:射頻無線雜項 Crypto-Transp. Prog f.all appl. RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| TK55A10J1(Q) | 制造商:Toshiba America Electronic Components 功能描述: 制造商:Toshiba America Electronic Components 功能描述:Trans MOSFET N-CH 100V 55A 3-Pin(3+Tab) TO-220SIS |
| TK55D10J1 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Switching Regulator Applications |
| TK55D10J1(Q) | 功能描述:MOSFET MOSFET N-Ch RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
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