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S2-LPQTR Datasheet(PDF) 14 Page - STMicroelectronics |
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S2-LPQTR Datasheet(HTML) 14 Page - STMicroelectronics |
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14 / 90 page ![]() Typical application diagram and pin description S2-LP 14/90 DocID029944 Rev 1 N. Pin name Pin type Description 6 SDN Digital in Shutdown input pin. SDN should be = ‘0’ in all modes, but SHUTDOWN mode 7 VDD ANA/ SYNTH Power 1.8 V to 3.6 V power 8 VR SYNTH Analog in/out 1.2 V SYNTH-LDO output for decoupling 9 VREF VCO Analog out 1.2 V VCO-LDO for decoupling 10 VDD VCO/TX Power 1.8 V to 3.6 V power supply 11 TX RF output RF output signal 12 VR RF Analog in/out 1.2 V RX-LDO output for decoupling 13 RXn RF in Differential RF input signals for the LNA 14 RXp RF in 15 VDD RX/DIG Power 1.8 V to 3.6 V power supply 16 SDO Digital out SPI slave data output 17 SDI Digital in SPI slave data input 18 SCLK Digital in SPI slave clock input 19 CSn Digital in SPI chip select 20 GPIO0 Digital I/O General purpose I/O that may be configured through the SPI registers to perform various functions 21 GPIO1 Digital I/O 22 GPIO2 Digital I/O 23 GPIO3 Digital I/O 24 VR DIG Analog in/out 1.2 V digital power supply output for decoupling |
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