Schematics

REVISION RECORD
APPROVED:ECO NO:
B
D
DATE:
123456
D
C
A
B
C
LTR
MIC
LED
CHARGE
Ear phone
KEY
OSC
Te s t poi nt
2402- 2480MHZ
MCU
1
DACVSS
2
NC
3
VDDIO
4
PB9/PB10/ADC9
5
PB8/AUX1R/ADC8
6
PB7/PB4/ABUX1L/ADC7
7
VSSIO
8
NC
24
USBDM
23
NC
22
SD1DAT/PC3
21
ADC10/SD1CMD/PC4
20
ADC13/SD1CLK/PC5
19
BT-OSCO
18
BT-OSCI
17
VSSIO
25
ADC12/USBDP
26
ADCO/AUXOR/MIC-BIAS/PA1/PC7
27
MIC/PC6
28
DACR
29
DACL
30
VCOMO
31
DACVDD
32
NC
16
BT-RF
15
PB0
14
PB1/ADC5
13
PB3/ADC6
12
PB2
11
BT-AVDD
10
LDO-IN/PB5
9
VBAT
33
GND
U2
1
VBUS
2
D-
3
D+
4
ID
5
GND
0
S
0
S
0
S
0
S
USB1
USB(USB-MICRO)
R1
2.7R
Y1
24MHZ
C1
222
C7
105/ 16V
C4
2.7P
C13
NC
C5
NC
C3
NC
LED2
B- LED
LED1
R- LED
B+
C12
105
C15
105/ 16V
C8
105/ 16V
C14
105
L+
R-
R+
L-
D+1
D+
D- 1
D-
2
4
3
1
J1
AUX
R5 0R
C11 104
+
MIC1
B-
1
ANT
K1
K2
K3
BAT+
C9
NC
TVS1
NC
GND-
PW
GND
GND
GND
GND
DCIN
3.3 V
BAT+
DCIN
BT_AVDD
RF
GND
DP
VCOM
3.3 V
BAT+
DM
DP
MIC
DVDD
AGND
DACVDD
DACL
VCOMO
DACR
DACL
VCOMO
DACR
PH
MI C
MIC_BIAS
AGND
GND
DC5V
ANT
LED_B/R
AGND
V-
D+
POWER
NEXT/ V+
BT_OSCI
BT_OSCO
PH
D
DM
DP
MIC_BIAS
MIC
DACR DACL VCOMO
BT_OSCO
BT_OSCI
V-
POWER
NEXT/V+
D
D+
LED_B/R
DM
DP
AC6956A