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EM4550 датащи(PDF) 2 Page - EM Microelectronic - MARIN SA

номер детали EM4550
подробное описание детали  1 KBit Read/Write Contactless Identification Device
PDF  16 Pages
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производитель  EMMICRO [EM Microelectronic - MARIN SA]
домашняя страница  http://www.emmicroelectronic.com
Logo EMMICRO - EM Microelectronic - MARIN SA

EM4550 датащи(HTML) 2 Page - EM Microelectronic - MARIN SA

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EM4450
EM4550
Copyright
 2003, EM Microelectronic-Marin SA
2
www.emmicroelectronic.com
Block Diagram
Fig. 2
System Principle
Fig. 3
EM4450
Coil 1
Coil 2
Oscillator
Antenna
Driver
Modulator
Demodulator
Filter &
Gain
Data
Decoder
Data to be sent
to transponder
Data received
from
transponder
Transceiver
Transponder
Signal on
Transponder coil
Signal on
Transceiver coil
Data
RF Carrier
READ M ODE
Signal on
Transponder coil
Signal on
Transceiver coil
Data
RF Carrier
RECEIVE M ODE
Modulator
Encoder
EEPROM
ROM
Voltage
Regulator
AC/DC
converter
Pow er
Control
Clock
Extractor
Data
Extractor
coil1
coil2
+V
Control
Logic
Sequencer
Command
Decoder
Reset
Write Enable
C
s
C
r



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