R

EM4150

EM4350

Absolute Maximum Ratings

Parameter

Symbol

Conditions

Maximum AC peak current

induced on COIL1 and COIL2

± 30 mA

Power Supply

-0.3 to 6.0V

Maximum voltage other pads

Minimum voltage other pads

Storage temperature

-55 to °125°C

Electrostatic discharge

maximum to MIL-STD-883C

method 3015

1000V

Stresses above these listed maximum ratings may cause

permanent damage 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 should be taken as for any other CMOS

component.

Unless otherwise specified, proper operation can only

occur when all terminal voltages are kept within the

supply voltage range.

Operating Conditions

Parameter

Symbol

Min

Typ

Max

Units

Operating

temperature

-40

+85

°C

Maximum coil

current

10

mA

AC Voltage on

coil

1)

Vpp

Supply frequency

100

150

kHz

Note 1): Maximum voltage is defined by forcing 10mA on Coil1-

Coil2

Antenna

Driver

Oscillator

Demodulator

Filter

and

Gain

Data decoder

Data received

from transponder

Tranceiver

Transponder

Coil1

Coil2

EM4150

Signal on

Transponder coil

Signal on

Transceiver coil

Data

RF Carrier

READ MODE

Signal on

Transponder coil

Signal on

Transceiver coil

Data

RF Carrier

RECEIVE MODE

Modulator

Data to be sent

to transponder

Fig. 3

Copyright

© 2004, EM Microelectronic-Marin SA

2

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