CRX14 데이터 시트보기 (PDF) - STMicroelectronics
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CRX14 Datasheet PDF : 40 Pages
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CRX14
Figure 5. CRX14 Application Schematic
VCC
OPT
R1
E0
0R
R2
C6VCC
100nF50V
OPT
OPT C3 WURTH 742-792-042U1
R3
FL7
R5
22nF50V
E1
0R E2
0R
R4
R6
1
2
3
4
5
6
7
8
VREF
VCC
RFIN RFOUT
E0 GND_RF
E1
OSC1
E2
OSC2
GND_RF GND
GND
SCL
GND SDA
16
15
14
13
12
11
10
9
CRX14
C8
100pF50V
C8'
C1 7pF50V 8pF50V
D1
1N4148 (OPTIONAL)
C5
10pF50V R8
0R
ANT1
X1
13.56MHz
C2 7pF50V
C7
C7'
120pF50V 33pF50V
J1
SDASCL
FL5 0R
4
3
2
FL4 0R
1
FL6 0R
VCC
+ C4
22uF 10V
R7
ANT2
0R
Figure 6. Maximum RL Value versus Bus Capacitance (CBUS) for an I²C Bus
AI10952
20
16
12
8
4
0
10
VCC
fc = 100kHz
fc = 400kHz
100
CBUS (pF)
RL
SDA
MASTER
SCL
RL
CBUS
1000
CBUS
AI01665
8/40
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