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ST25R3918 Datasheet(PDF) 13 Page - STMicroelectronics |
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ST25R3918 Datasheet(HTML) 13 Page - STMicroelectronics |
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13 / 141 page  DS13490 Rev 2 13/141 ST25R3918 Description 140 2.1 System diagram Figure 1 and Figure 2 show the minimum system configuration for, respectively, single ended and differential antenna configurations. Both include the EMC filter. Figure 1. Minimum system configuration - Single sided antenna driving MS54046V2 Antenna coil MCU +2.4 to +5.5 V +1.65 to +5.5 V VDD VDD_TX BSS MISO MOSI SCLK IRQ MCU_CLK RF01 RF02 RFI1 RFI2 ST25R3918 AGD VSS VDD_A VDD_AM GND_A VDD_IO XTI XTO VDD_D GND_D GND_DR GND_DR I2C_EN EXT_LM VDD_RF VDD_DR Connect to GND (SPI) or VDD_D (I2C) |
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