SI4X55-C Datasheet, PDF (2/39 Pages) Silicon Laboratories – Preamble sense mode

Si4x55-C
Functional Block Diagram
GPIO3
GPIO2
XIN XOUT
SDN
RXp
RXn
Synthesizer
Rx Chain
LNA
TX
PA
VDD
PGA
ADC
Battery
Voltage
Sensor
25-32MHz XO
Rx/Tx
Modem
nSEL
SDI
SDO
SCLK
nIRQ
Aux ADC
GPIO1
GPIO0
2
Rev 1.0