sri4k STMicroelectronics, sri4k Datasheet - Page 43

• Manufacturer Part Number: sri4k
• Description: 13.56 Mhz Short-range Contactless Memory Chip With 4096-bit Eeprom And Anticollision Functions
• Manufacturer: STMicroelectronics

SRI4K
Figure 54. A5 antenna specification
1. Drawing is not to scale.
Table 12.
Symbol
F
NOM
A1
B1
P
Q
A
B
A
Coil width
Coil length
Inlay width
Inlay length
Overall thickness of copper antenna coil
Silicon thickness
Unloaded Q value
Unloaded free-air resonance
H-field energy for device operation
A5 antenna specification
Parameter
B1
B
Type
14.8
140
180
42
65
46
70
30
41.5
64.5
45.5
69.5
0.25
Min
130
165
108
A
A1
Package mechanical
Max
42.5
65.5
46.5
70.5
150
195
AI09071B
dbµA/m
MHz
Unit
A/m
mm
mm
mm
mm
µm
µm
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