MC75i Hardware Interface Description
4.3 Antenna Connector
78
MC75i_HD_v01.100a
Page 75 of 122
2009-08-13
Confidential / Released
4.3
Antenna Connector
MC75i uses either an ultra-miniature SMT antenna connector from Hirose Ltd: U.FL-R-SMT, or
the Molex 07341201 U.FL antenna connector. Both connectors have identical mechanical di-
mensions (see
). Minor differences in product specifications are mentioned in
. The position of the antenna connector on the MC75i board can be seen in
Figure 40:
Mechanical dimensions of MC75i antenna connectors
Table 20:
Product specifications of MC75i antenna connectors
Item
Specification
Conditions
Ratings
Nominal impedance
50
Operating temp:-40°C to + 90°C
Operating humidity: max. 90%
Rated frequency
DC to 3GHz
Mechanical characteristics
Repetitive operation
Contact resistance:
Center 25m
Outside 15m
30 cycles of insertion and disen-
gagement
Vibration
No momentary disconnections of 1µs.
No damage, cracks and looseness of
parts.
Frequency of 10 to 100Hz, single
amplitude of 1.5mm, acceleration
of 59m/s
2
, for 5 cycles in the direc-
tion of each of the 3 axes
Shock
No momentary disconnections of 1µs.
No damage, cracks and looseness of
parts.
Acceleration of 735m/s
2
, 11ms
duration for 6 cycles in the direc-
tion of each of the 3 axes
Environmental characteristics
Humidity resistance
No damage, cracks and looseness of
parts.
Insulation resistance:
100M
min. at high humidity
500M
min. when dry
Exposure to 40°C, humidity of
95% for a total of 96 hours
Temperature cycle
No damage, cracks and looseness of
parts.
Contact resistance:
Center 25m
Outside 15m
Temperature: +40°C
5 to 35°C
+90°C
5 to 35°C
Time: 30min
within 5min
30min within 5min
Salt spray test
No excessive corrosion
48 hours continuous exposure to
5% salt water
