Datasheet

MAX14820
IO-Link Device Transceiver
28Maxim Integrated
Figure 15. Using an Optional External Supply to Power the MAX14820
Figure 14. Larger Bypass Capacitance for Powering External Circuits
1
2
4
3
10kΩ
MAX14820
0.8Ω
1μF
0.1μF
1μF
V
CC
UVGPIO2
LDOIN
DO
LX
FB
GND
SPI
IN
5V STEP-DOWN
REGULATOR
EN
C/Q
L+
L-
GND
DIGND
V
5
V
CC
LDO33V
L
TXQ
MICROCONTROLLER
WUIRQ
RXRX
TXCTX
TXENRTS
LOGPIO1
3.3V
MAX17501F
5V
MAX14820
0.8Ω
V
CC
LDOIN
L+
L-
GND
V
P
V
5
LDO33
3.3V
5V
1μF
0.1μF
1μF
C5*
C33*
10Ω*
10Ω*
10Ω
1μF