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
Dynamic Consumption Versus temperature with Vdd-
Vss=1.5V
101
100.8
100.6
100.4
100.2
100
1.4
1.2
PSK
1
0.8
0.6
0.4
0.2
0
Manchester
and biphase
99.8
99.6
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature [ °C ]
Temperature [°C]
Fig. 9
Fig. 10
Rectified Voltage versus temperature for
Vcoil2-Vcoil1=2.8V
L versus Resonance Frequency versus for a typical
coil capacitance of 74 pf
2
1.95
1.9
40
35
30
25
20
15
10
1.85
1.8
1.75
1.7
1.65
-50
-25
0
25
50
75
100
100
110
120
130
140
150
Temperature [°C]
Frequency [KHz]
Fig. 12
Fig. 11
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6
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