Schematics

1 1
2 2
3 3
4 4
D D
C C B B
A A
COMPANY:
COMPX
TITLE: SIZE:
REV: SHEET: OF
A4
1.0
1 1
NO:
DATE:2021/03/08
Combo Dongle
CX5166
VCC
1
D-
2
D+
3
VSS
4
GND
5
1 USB
D- D+
VDD
D+
D-
C9 10uF
C1
2.2UF
C10
2.2uF
Y1
16MHz(+/-10ppm)/9pF
C6
18PF/*
C8 18PF/*
+3V
VDD
+3V
+3V/GND/VPP/CLK/MOSI/P20/P21
C2
1uF
+3V
VCCRF
1
RFP
2
GND
3
NC
4
XP
5
XN
6
Out3V
7
DP
8
DN
9
5V
10
VCCMCU
11
P21
12
P20
13
CLK
14
MOSI
15
VPP
16
CDVDD
17
VCCDIG
18
VCCIF
19
VCCVCO
20
U1
CX5166
QFN20
E1
Antenna
C4 3.9pF/*
L1 0R/*
C5 NC/*
R1
4.7R