1
2
3
4
VIN
DIODE
2
1
2
1
5
6
7
8
C15 GND
100u
GND
R2
1k
25MHZ
1
2
3
4
5
U1
SI5351
GND
10
VDD CLK0
9
XA
CLK1
8
XB
GND
7
SCL VDDO
6
SDA CLK2
VCC 16
7
1A
1B1
1B2
FST3253 1B3
1B4
OE1/
9 2A
14 S0
2
S1
R11
100
GND
C30
0.1u
R17
10k
GND
LM4562
2B4 13
2B3 12
2B2 11
2B1 10
OE2/ 15
R12
100
R10
100
C18
0.1u
0.47u
C23
GND
C
R14
82k
GND
GND
C32
0.1u
1
2
3
4
5
6
7
R4
1k
GND
A0
B0
O0#
A1
B1
O1#
GND
VCC
A2
B2
O2#
A3
B3
O3#
14
13
12
11
10
9
8
ATMEGA328
R22
10k
R26
1k
17
18
19
20
21
22
23
24
C35
0.1u
3 3
2 2
1 1
I/Q
R20
10k
R21
10k
R18
10k
C31
0.1u
1n
C28
C34
0.01u
GND
25
26
27
28
29
30
31
32
UART
1 1
2 2
3 3
GND
(MISO0/RXD1/PTCXY)PB4 16
PB5(PTCXY/XCK1/SCK0) (MOSI0/TXD1/OC2A/PTCXY)PB3 15
AVCC
(#SS0/OC1B/PTCXY)PB2 14
PE2(ADC6/PTCY/ICP3/#SS1)
(OC1A/PTCXY)PB1 13
AREF
(ICP1/CLKO/PTCXY)PB0 12
GND
(PTCXY/AIN1)PD7 11
PE3(ADC7/PTCY/T3/MOSI1)
(OC0A/PTCXY/AIN0)PD6 10
PC0(ADC0/PTCY/MISO1)
(OC0B/T1/PTCXY)PD5 9
PC1(ADC1/PTCY/SCK1)
8
PC2(ADC2/PTCY)
(XTAL2/TOSC2)PB7
7
PC3(ADC3/PTCY)
(XTAL1/TOSC1)PB6
6
PC4(ADC4/PTCY/SDA0)
(SCL1/T4/PTCXY)PE1
5
PC5(ADC5/PTCY/SCL0)
GND
4
PC6(#RESET)
VCC
3
PD0(PTCXY/OC3A/RXD0)
(SDA1/ICP4/ACO/PTCXY)PE0
2
PD1(PTCXY/OC4A/TXD0)
(XCK0/T0/PTCXY)PD4
1
PD2(PTCXY/INT0/OC3B/OC4B)
(OC2B/INT1/PTCXY)PD3
SW2
1
GND
3
GND
RF
SW1
2
1
4
3
2
R25
10k
4
L3
1
R23
3.3k
R24
1k
R9
10k
D
C21
0.01u
Q2
IRLML2060TR
GND
L1
L2
Q3
IRLML2060TR
470
C6
5
4
3
2
300
C9
C2
1000
C4
1000
Q4
IRLML2060TR
TITLE:
R7
100k
GND
uSDX Micro
REV: 2.6
Company: UD3SBV
GND
1
2
3
C
C20
0.01u
R8
10k
470
C5
300
C3
GND
ENC
GND
D
0.1u
C12
GND
GND
C16
0.01u
C13
0.01u
20MHZ
R19
10k
GND
Q5
IRLML2060TR
B
2
74ACT00
L5
47uH
GND
GND
0.47u
C25
GND
C33
10u
R16
10k
8
GND
6
5
4
3
1
R15
82k
0.47u
C26
R13
100
D1
4148
B
R1
1k
GND
GND
A
GND
K
C1
0.1u
0.47u
C22
C29
1n
A
C19
0.1u
A
K
CN1
PJ-320D 1
4
3
2
C27
220u
GND
C10
0.01u
D2
4148
R6
10k
C11
0.1u
1
2
3
4
1
R3
1k
SDA
SCL
VCC
GND
L4
47uH
GND
GND
OLED
C
R5
10k
C8
0.1u
A
8
V+
7
OUT/B
6
NEG/B
5
POS/B
C7
220u
1117-5V
1
GND
2
4
VOUT VOUT
3
VIN
1
OUT/A
2
NEG/A
3
POS/A
4
V-
A
B
0.1u
C14
Date:
4
5
6
7
2021-07-26
8
Sheet: 1/1
Drawn By: UD3SBV