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參數(shù)資料
| 型號(hào)： | W55MID50 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | WINBOND MFID READER |
| 中文描述： | 華邦MFID讀者 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 293K |
| 代理商： | W55MID50 |
W55MID50 Data Sheet
Winbond Electronics Corp. 5 Revision: A3 Publish Date: 2003/3/24
System Description
2.1 W55MID50 System Block Diagram
2.2 W55MID50 Functional Description
Transmission Power Amplifier (PA)
It provides 4 different selectable transmission
power for Reader chip to support
MFID
WB
Tag's
radiation power supply. The external inductor coupling
circuit is designed for 13.56MHz magnetic field
resonance. The coupled center frequency will depend
on equivalent value of external PCB inductor and
capacitor.
Envelope Detector & Analog Front End
The major function of this unit provides
MFID
WB
Tag's data can be extracted.
Voltage Regulator
The voltage regulator generates the system
needs of device power supply.
Configuration Register
System configuration register controls the all
functional settings of W55MID50 such as Tag data
Command
Extractor
Configuration
Register
Data-
Buff.
output
Data-
Buff.
I
Envelope detector
&
Analog Front End
Oscillation circuit
13.56MHz
Voltage
Regulator
Preamble
&
Data Clk
Generator
Decoder
(NRZ/
Man.)
Reset &
Power down
Control
PA
Data-
Buff.
II
TXD
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