DocID026906 Rev 3 9/27
SP1ML Hardware specification
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1.7 Pin placement
Figure 1. Pin placement
1.8 Hardware block diagram
Figure 2. Hardware block diagram
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GSPG1409141830SMD
Spirit1 Filter/Balun
STM32L
Microcontroller
SPI
GPIO
UART
XTAL
1.8V to 3.6V Supply
GPIO
TX
RXp
RXn
SMPS
GSPG1409141831SMD
