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ST25R3920 데이터시트(PDF) 13 Page - STMicroelectronics

부품명 ST25R3920
상세설명  Automotive high performance NFC reader for CCC digital key and car center console
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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ST25R3920 데이터시트(HTML) 13 Page - STMicroelectronics

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DS13261 Rev 9
13/152
ST25R3920
Description
151
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
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
ST25R3920
AGD
VSS
CSI
VDD_A
VDD_AM
GND_A
VDD_IO
XTI
XTO
VDD_D
GND_D
GND_DR1
GND_DR2
CSO
AAT_A
AAT_B
I2C_EN
EXT_LM
VDD_RF
VDD_DR
Connect to GND (SPI)
or VDD_D (I2C)



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