Schematics

L1
10UH
ANT1
Y1
NC
D2
BLUE
1
AGND
2
PE7/ADC9
3
VUSB
4
VDDIO
5
VBAT
6
LX
7
GND
8
VDDBT
9
PWRKEY
10
BT_RFGND
11
BT_ANT
12
BT_AVDD
13
BT_OSCI
14
BT_OSCO
15
ADC6/PB4
16
ADC5/PB3
17
ADC2/PA7
18
ADC10/ MIC/PF2
19
DACR
20
DACR#
0
GND
21
DACL
22
VCMBUF/DACL#
23
VDDDAC
24
VDDDAC12
U2
AB5335B
D1
RED
1
1
R2 2.2R
C5
105
C1
105
C2
105
C3
105
C6
NC
C7
NC
C10
NC
C11
NC
C12
NC
C13
106
1
5V
2
DM
3
DP
4
5
GND
6
GND
7
GND
10 12 14
11 13 15
USB1
USB-MICRO
USB- MI CRO
1
2
3
Q1
3904
1
2
MIC1
4013ÌùƬ
RED
BL
GR
LED1
5*5 LED
1 2
3 4
J1
3*6*3.5
1 2
3 4
J2
3*6*3.5
1
1
C4
NC
C8
NC
1 2
Y2
26MHz
C16
104
C9
104
R1 6.8K
C14
104
VUSB
VBAT
LED_ON/OFF
PWRKEY
DACL
DACL2
DACR
DACR2
RED_LED
BLUE_LED
KEY1
KEY1
VUSB
VBAT
VDDIO
PWRKEY
VDDBT VDDBT
RED_LED
BLUE_LED
MIC
LED_ON/OFF
DACL2 DACL DACR2 DACR
VDDDAC
MIC
VDDDAC