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| 型号： | E5561 |
| 英文描述： | e5561 Advance Information [Updated 4/03. 26 Pages] Read/Write transponder IC for contactless RF identification for highly sophisticated security applications. |
| 中文描述： | e5561推进信息[更新4 / 03。 26页]读/写非接触式射频转发器的高度复杂的安全应用识别芯片。 |
| 文件页数： | 26/26页 |
| 文件大小： | 410K |
| 代理商： | E5561 |
9
e5561
4699A–RFID–04/03
Crypto mode: the e5561 computes a response according to the challenge received
from the base station and sends the response to the base station
Stop mode: the e5561 stops modulation
An additional password function enables the e5561 to be operated only by a person who
knows the password programmed in the EEPROM memory.
Supply
The e5561 is supplied via a tuned LC circuit which is connected to Coil1 and Coil2 pads.
The incoming RF (actually a magnetic field) induces a current into the coil which powers
the chip. The on-chip rectifier generates the DC supply voltage (V
DD, VSS pads). Over-
voltage protection prevents the IC from damage due to high field strengths (depending
on the coil, the open-circuit voltage across the LC circuit can reach more than 100 V).
The first occurrence of RF triggers a power-on reset pulse, ensuring a defined start-up
state.
Start-up
The various modes of the e5561 are activated after the first read-out of the configura-
tion. The modulation is on during power-on reset and is off while the configuration is
read. After this initialization period of 128 + POR time FCs, the e5561 starts the auto-
matic adaptation of the resonance frequency. When the adaptation has been carried
out, the e5561 enters ID mode immediately if terminator 2 is selected, otherwise, a data
value of Fh in the selected configuration (modulation, bit rate) is sent followed by the
optionally specified terminator 1 (see Figure 8).
Figure 6. Application Circuit
Figure 7. Voltage at Coil1/Coil2 after Start-up (e.g., RF/32, Manchester, Terminator 1)
e5561
Coil 1
Coil 2
V
DD
V
SS
125 kHz
Energy
Data
Tuned LC
Coil of base station
Coil1-Coil2
Load config.
(190 FCs)
Term. 1
V
Power-on reset
Read Fh
Read data with selected
modulation and bit-rate
Automatic
adaptation
Damping on
Damping off
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相关代理商/技术参数 |
参数描述 |
|---|---|
| E5561_06 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Standard Read/Write Crypto Identification IC |
| e5561A-DOW | 功能描述:射频无线杂项 Encryption w/unique options RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel |
| E5562-00L022-L | 功能描述:以太网和电信连接器 RJ11 6P2C SIDE ENTRY RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级: |
| E5562-60L121-L | 功能描述:以太网和电信连接器 RJ11 6P2C SIDE ENTRY RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级: |
| E5562-60LU22-L | 功能描述:以太网和电信连接器 RJ11 6P2C SIDE ENTRY RoHS:否 制造商:Pulse 产品:Modular Jacks 性能类别: USOC 代码:RJ45 位置/触点数量: 安装风格:Through Hole 端口数量:1 x 1 型式:Female 屏蔽: 电流额定值: 电压额定值: 触点电镀: 外壳材料:Thermoplastic IP 等级: |
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