Schematics

1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2020/10/23 Sheet of
File: F:\A许工\..\LK8620 V1.2.SchDoc Drawn By:
LK8620
2020.04.03
3
3
2
2
1
1
4
4
Y1
XTAL_24MHZ/12PF
TL-A7/SWS
C10105/10V
C8
105/10V
1
1
2
2
L3 47UH L0603
GND
C13
104/10V
C15
105/10V
C16
105/10V
TL-B0/RX1
C12
105/10V
C11
105/10V
RESETB
VANT
ANT
C7
104/10V
C9
105/10V
TL-XC1
TL-XC2
GND
L1
1.3nH
VANT
ANT
C6
18PF
C2
2.7PF
C5 220PF
C1
2.2PF
L2 2.4nH
C3
1.2PF
R1 0.5PF
C4
NC
1
1
2
2
ANT1
GND GND GND GND
TL-VCC
D1
LED R2 1K
3V3
7
GND
6
A7/SWS
5
RST
4
C5
3
B1
2
B0
1
GND
0
U2 TLSR
TL-VCC TL-A7/SWS GND
TL-1V2
TLSW
TL-1V0
XC1
1
XC2
2
SWA/A7
3
B0/RX1
4
B1/TX1
5
DVSS
6
VDD1V
7
VDDIO
8
AVDD1V2
16
ANT
15
VANT
14
RESETB
13
C5/RX2
12
VDD3
11
VDD1V2
10
VDCDC_SW
9
U1
TLSR8250F512ES16
TL-B1/TX1
TL-VCC
GND
GND
TL-C5/RX2
TL-1V2
GND
GND
C17
NC
C14
NC
TL-C5/RX2TL-VCC
TL-C5/RX2 TL-B0/RX1 TL-B1/TX1 RESETB