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EM4170 Datasheet(PDF) 2 Page - EM Microelectronic - MARIN SA

Part # EM4170
Description  125kHz CRYPTO READ/WRITE Contactless Identification Device
PDF  13 Pages
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Manufacturer  EMMICRO [EM Microelectronic - MARIN SA]
Direct Link  http://www.emmicroelectronic.com
Logo EMMICRO - EM Microelectronic - MARIN SA

EM4170 Datasheet(HTML) 2 Page - EM Microelectronic - MARIN SA

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EM4170
Copyright
 2002, EM Microelectronic-Marin SA
2
www.emmicroelectronic.com
System Principle
READ MODE
Signal on
Transponder coil
Signal on
Transceiver coil
Data
RF Carrier
RECEIVE MODE
Antenna
Driver
Oscillator
Demodulator
Filter
and
Gain
Data decoder
Data received
from transponder
Tranceiver
Transponder
Coil1
Coil2
EM4170
Modulator
Data to be sent
to transponder
Signal on
Transponder coil
Signal on
Transceiver coil
Data
RF Carrier
Fig. 2
Block Diagram
Modulator
Encoder
AC/DC
converter
Clock
Extractor
Data
Extractor
Sequencer
Command
Decoder
Cr
V
POS_REG
RESET
PWR
Cs
GND
Control
Logic
EEPROM
Crypto-
Algorithm
V
DD
Serial
Data
Power
Control
Coil1
Coil2
Fig. 3



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