SR176_07 Datasheet, PDF (29/35 Pages) STMicroelectronics – 13.56 MHz, 176-bit short range contactless user EEPROM with 64-bit Unique ID

SR176
9
Package mechanical
Package mechanical
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second-level interconnect. The category of
Second-Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97.
The maximum ratings related to soldering conditions are also marked on the inner box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 46. A3 antenna specification
A ^A1
B
B1
Table 9.
Symbol
A3 antenna specification
Parameter
A
B
A1
B1
Q
F_NOM
Coil width
Coil length
Inlay width
Inlay length
Overall thickness of copper antenna coil
Silicon thickness
Unloaded Q value
Unloaded free-air resonance
P_A H-field energy for device operation
AI09046B
Type
Min
Max
Unit
38
37.5
38.5
mm
38
37.5
38.5
mm
43
42.5
43.5
mm
43
42.5
43.5
mm
110
90
130
µm
180
165
195
µm
40
15.1
MHz
0.5
A/m
114
dbµA/m
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