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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： | 22/26页 |
| 文件大小： | 410K |
| 代理商： | E5561 |
5
e5561
4699A–RFID–04/03
Building Blocks
Figure 3. Block Diagram
Analog Front End (AFE)
The AFE includes all circuits directly connected to the coil. It generates the IC's power
supply and handles the bi-directional data communication with the base station. It con-
sists of the following blocks:
Rectifier to generate a DC supply voltage from the AC coil voltage
Clock extractor
Switchable load between Coil1/Coil2 for data transmission from the IC to the base
station (read)
Field gap detector for data transmission from the base station to the IC (write)
Controller
The controller has the following functions:
Initialize and refresh the EEPROM’s configuration register
Control memory access (read, program)
Handle correct write data transmission
Error detection and error handling
Control encryption operation
Control the adaptation of resonance frequency
Power-On Reset (POR)
The power-on reset is a delay reset which is triggered when the supply voltage is
applied.
Configuration Register
The configuration register stores the configuration data read out from EEPROM blocks 0
and 9. It is continuously refreshed which increases the reliability of the device (if the ini-
tially loaded configuration was wrong or modified, it will be corrected by subsequent
refresh cycles).
Configuration data
Transmission
EEPROM control
Error detection
Encryption
Coil1
Coil2
Modulator
A
n
a
lo
g
F
ro
n
t
E
n
d
Input register
B
it
d
e
c
o
d
e
r
B
it
ra
te
g
e
n
e
ra
to
r
64- or 128-bit code
CONTROLLER
Conf. register
H
V
G
e
n
e
ra
to
r
V
DD
Crypto circuit
POR
Test pads
Crypto key
Memory
A
d
a
p
t
EEPROM
Test logic
V
SS
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相关代理商/技术参数 |
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| E5561_06 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Standard Read/Write Crypto Identification IC |
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| 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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