Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VCC_3.3V = 0.8*(1+150K/47K)V = 3.353V
C3528P
VCC_SYS5V
VCC_3.3V
VCC_SYS5V VDD_UHF
PB12_UHF_PWR[2]
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
PWR
B
37Monday, March 16, 2020
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
PWR
B
37Monday, March 16, 2020
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
PWR
B
37Monday, March 16, 2020
Q4
AO3401
D
G
S
+
C16
100uF
C20
10uF
R21 47K
U3
EUP7961DIR1
EN
1
VIN
2
VOUT
3
ADJ
4
GND
5
GND
6
GND
7
GND
8
R19 10K
L2
30Z
12
C14
10uF
C17
100nF
C21
100nF
+
C13
47uF_6.3V
12
+
C22
47uF_6.3V
12
Q5
2N7002
D
G
S
R18
100K
R17 1K
C15
100nF
R20
150K
R16
100K
C19
100nF
C18
10uF
L1
30Z
12