EM4056 데이터 시트보기 (PDF) - EM Microelectronic - MARIN SA

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EM4056

2KBIT Read/Write with ANTICOLLISION Contactless Identification Device

EM Microelectronic - MARIN SA 

Block Diagram

Antenna

(Coil)

Analog

Circuit

CLK

Serial Output

Logic Circuit

Safety

(incl. PIN Code)

Modulator

Adder

Demodulator

Anticollision

Serial Input

System Principle

Reader

125kHz EM coupling

EM4056

EEPROM

Power Supply

Addressing

Memory

Laser ROM

3x16 bit

Write/Read

Protection (OTP)

125 x 16 bit

EEPROM

EM4056

Fig. 2

Reader

Oscillator

Command Mode

Reader Coil

RS232

Serial

Interface

Modulator

Decoder

Demodulator

Reader

Coil

Transponder Coil

Answer Mode

Transponder Coil

Reader Coil

Fig. 3

Copyright © 2005, EM Microelectronic-Marin SA

2

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