R
EM4100
PSK Code
Serial Data Out
COIL1
Modulator control
"0" ON SERIAL OUT
"1" ON SERIAL OUT
Modulation control "low" means high current
Fig. 8
Typical Performance Characteristics
Typical Capacitor Variation versus Temperature
101
Dynamic Consumption Versus temperature with Vdd-
Vss=1.5V
1.4
1.2
1
PSK
Manchester
and biphase
Resonnance capacitor [%]
100.8
100.6
Idyn [µA]
100.4
100.2
100
99.8
99.6
-50
-25
0
25
50
75
100
0.8
0.6
0.4
0.2
0
-50
-25
0
25
50
75
100
Temperature [°C]
Temperature [ °C ]
Fig. 9
Fig. 10
L versus Resonance Frequency versus for a typical
coil capacitance of 74 pf
Rectified Voltage versus temperature for
Vcoil2-Vcoil1=2.8V
40
35
2
1.95
1.9
Lcoil [mH]
30
25
20
15
10
100
Vddrec [V]
1.85
1.8
1.75
1.7
1.65
110
120
130
140
150
-50
-25
0
25
50
75
100
Frequency [KHz]
Temperature [°C]
Fig. 11
Fig. 12
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6
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EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
