Block Diagram - Globalstar STINGR User Manual

Revision 1.0 STINGR Users Manual

2.2 Block Diagram

The basic elements of a design utilizing the STINGR simplex transmitter are shown below.
Figure 4
The STINGR provides a single power supply input. Normally, this will be a high-current battery which can provide the
required transmit current during RF transmissions. The STINGR has internal regulators which provide separate power
for the digital, RF and GPS circuitry. This provides the capability to leave the STINGR in a low power consumption state
when the transmitter RF section and the GPS section are idle. The internal RF power supply is a high power supply
which is only required while the STINGR is transmitting a data packet. Internal cirucuitry turns this supply off except
during active transmissions in order to minimize the power consumption of the STINGR. Since the transmission duty
cycle is very low, this supply will be turned off the majority of the time and only active during the transmission of a
packet. VBATT can NOT be disconnected between bursts when sending a multi-packet message. If VBATT is
disconnected, any active modes such as track mode will not be retained.
Revision 1.0 Subject To Change without Notice P a g e | 8
09/30/15