EM4102 datasheet(2/7 Pages) EMMICRO

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EM4102

www.emmicroelectronic.com

Absolute Maximum Ratings

Parameter

Symbol

Conditions

Maximum DC Current forced

on COIL1 & COIL2

Power Supply

Storage Temp. Die form

Storage Temp. PCB form

Electrostatic discharge

maximum to MIL-STD-883C

method 3015

ICOIL

VDD

Tstore

VESD

±30mA

-0.3 to 7.5V

-55 to +200°C

-55 to +125°C

2000V

Stresses above these listed maximum ratings may cause

permanent damages to the device. Exposure beyond

specified operating conditions may affect device reliability

or cause malfunction.

Handling Procedures

This device has built-in protection against high static

voltages or electric fields; however, anti-static precautions

must be taken as for any other CMOS component. Unless

otherwise specified, proper operation can only occur when

all terminal voltages are kept within the voltage range.

Unused inputs must always be tied to a defined logic

voltage level.

Operating Conditions

Parameter

Symbol Min

Typ

Max Units

Operating Temp.

Maximum Coil Current

AC Voltage on Coil

Supply Frequency

Top

ICOIL

Vcoil

fcoil

-40

-10

100

14*

+85

150

°C

Vpp

kHz

*) The AC Voltage on Coil is limited by the on chip voltage

limitation circuitry. This is according to the parameter Icoil

in the absolute maximum ratings.

System Principle

Antenna

Driver

Oscillator

Demodulator

Filter

and

Gain

Data decoder

Data received

from transponder

Tranceiver

Transponder

Coil1

Coil2

EM4102

Signal on coils

Transponder coil

Transeiver coil

RF Carrier

Data

Fig. 3

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