R
EM4102
Absolute Maximum Ratings
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.
Parameter
Maximum DC Current forced
on COIL1 & COIL2
Symbol
ICOIL
Conditions
±30mA
Power Supply
VDD
-0.3 to 7.5V
Storage Temp. Die form
Storage Temp. PCB form
Tstore
Tstore
-55 to +200°C
-55 to +125°C
Operating Conditions
Electrostatic discharge
maximum to MIL-STD-883C
method 3015
VESD
2000V
Parameter
Operating Temp.
Symbol Min Typ Max Units
Top
ICOIL
Vcoil
fcoil
-40
-10
3
+85
°C
mA
Vpp
Maximum Coil Current
AC Voltage on Coil
Supply Frequency
10
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.
14*
100
150 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
Transponder
Tranceiver
Coil1
Antenna
Oscillator
Driver
EM4102
Coil2
Filter
and
Demodulator
Gain
Data received
from transponder
Data decoder
Signal on coils
Transponder coil
Transeiver coil
RF Carrier
Data
Fig. 3
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2
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