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參數(shù)資料
| 型號： | TK5551 |
| 廠商： | Atmel Corp. |
| 英文描述： | STANDARD READ /WRITE ID TRANSPONDER WITH ANTI COLLISION |
| 中文描述： | 標準讀/寫號轉(zhuǎn)發(fā)器有抗碰撞 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大小： | 241K |
| 代理商： | TK5551 |
2
TK5551
4709B–RFID–10/03
General
The transponder is the mobile part of the closed coupled identification system (see Fig-
ure 1 on page 1), whereas the read/write base station is based on the U2270B or on
discrete solutions, and the read/write transponder is based on the IDIC
e5551.
The transponder is a plastic cube device consisting of the following parts:
The transponder antenna, realized as a tuned LC circuit
Read/write IDIC (e5551) 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 for improving the distance of read, write
and programming operations.
Read/Write IDIC
e5551
The read/write IDIC e5551 is part of the transponder TK5551. The data are transmitted
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 communication
interface.
Data are transmitted by modulating the amplitude of the RF signal. Reading of register
contents occurs by damping the coil by an internal load. Writing into registers occurs by
interrupting the RF field in a specific way. The TK5551 transponder operates at a nomi-
nal frequency of 125 kHz. There are different bit rates and encoding schemes.
The on-chip 264-bit EEPROM (8 block, 33 bits each) can be read and written block wise
from the base station. The blocks can be protected against overwriting by using lock
bits. One block is reserved for setting the operation modes of the IC. Another block con-
tains a password to prevent unauthorized writing.
See e5551 data sheet for more detailed information of the IDIC.
Figure 2.
Block Diagram of the e5551
Coil1
Coil2
Modulator
A
POR
Input register
W
d
B
g
Memory
(264 bit EEPROM)
Controller
Test logic
Mode register
HV generator
V
dd
V
ss
Test pads
相關PDF資料 |
PDF描述 |
|---|---|
| TK5552 | Read/Write Transponder |
| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TK5551_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Standard Read/Write ID Transponder with Anti-collision |
| TK5551M-PP | 功能描述:射頻無線雜項 Universal R/W Transponder 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 |
| TK5552 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Read/Write Transponder |
| 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 |
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