Schematics
A
A
Fr
iday, September 15, 2017
A 1.0
1 1ofSheetDate:
RevDocument NumberSize
Title
A
B
C
D
5 4 3 2 1
D
C
B
A
12345
1
2
MI
C1
1
DP1
1
GN
D1
1
L+
1
3 4
S1 POW
ER
1
+5
V
2
DM
3
DP
4
GND
5
GND
7
GND
6
GND
8
GND
9
GND
CO
N1
1
VCC
1
1
R+
1
1
DM
1
2
GN
D
4
GND
3
X1
1
X2
Y1
24MHZ
L1
0R
1
VDD
IO
2
VBAT
3
LDO_IN
4
BT_AVDD
5
PB2/ADC12
6
PB1/ADC6
7
BT_RF
8
VSSIO
16
MIC
15
AGND
14
DACL
13
DACR
12
ADC10/PA3/USBDP
11
ADC11/USBDM
10
BT_OCSO
9
BT_OCSI
U1
SOP-16
SOP-16(6939B2)
1
1
2
2
ANT1
L4
2NH
L3
1.6NH
C19105
C10 NC
C11105
C8 105
C5
NC
3 4
S2
N/V+
3 4
S3
P/V-
12
BLED2
12
RLED1
R1
10R
ESD
NC
VCC
5V
N/V+
P/V
-
P/P/
POWER
VBAT
DACL
DACR
BT_OSCO
BT_OSCI
GND
P/P/POWER
LED_B/R
MIC
MIC
DACL
DAC
R
N/V+
P/V-
N/V+
P/V-
BT_OSCO
BT_OSCI
+3.3V
VBAT
DC5V
BT_AVDD
+3.3V
LED_B
/R
DC5V