ORBCOMM OG2 Modem Integration Manual
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removed from memory when the processor checks the queue after bootup. During a transmit event,
the system will hold up for 200us with an input voltage of 10 volts.
Figure 4-3 Voltage Fall Times vs. Input Power Switched Off
4.3.2
Fast Transients
All data lines are protected with low pass RF filters and ESD protection. The filters are designed to
meet IEC61000-4-2 level 4, and provide up to 40 dB of EMI protection from 800 MHz to 3GHz.
The Secure Digital High Capacity (SDHC) memory card interface is designed to meet JESD 84A43
specifications.
1
0
Volts
Processor
Receiver
Power Amplifier
Input Power
6.8
4.6
1.8
