Schematics

REVISION RECORD
APPROVED:ECO NO:
A
B
D
DATE:
123456
D
C
A
B
C
LTR
MIC
LED
CHARGE
Earphone
KEY
OSC
Test point
2402-2480MHZ
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)
R5
2.7R
C15
NEXT/V-
C13
PENT/V+
C17
P/P/POWER/TALK
Y1
24MHZ
4
VIN
1
EN
3
LX
5
FB
2
GND
S1
C8
NC
R2
NC
R1NC
R8
120NH
C4
222/16V
C7
105
C6
2.7P
C10
NC
C01
NC
C02
NC
C5
NC
R4
NC
R6NC
R7
120NH
LED2
B-LED
LED1
R-LED
B--2
B--1
L+7
L+8
C12
NC
C2
105
C3
105/16V
C9
105
C11
105
R9
120NH
L+9
L+6
L+10
L+5
L+2
L+4
L+3
L+1
R10
10R
2
4
3
1
J1
AUX
1
2
B--4
ANTENNA_PIFA
R3 120NH
C1 104
+
M2
DM
PB8/NEXT/V+
GND
GND
GND
GND
LED_B/R
DCIN
DM
GND
POWER
$$$5
BT_OSCO BT_OSCI
DC-EN
SW
$$$1
AGND
3.3V
3.3V
LED_B/R
GND
SW
BAT+
DCIN
BT_AVDD
DC-EN
$$$6
POWER
RF
GND
BT_OSCI
BT_OSCO
$$$5
$$$4
DM
PB8/NEXT/V+
VCOM
DACR
3.3V
BAT+
DM
PB8/NEXT/V+
$$$2
MIC
DACL
DVDD
AGND
DACVDD
DVDD
BT_AVDD
L
VOMO
R
$$$6
L
VOMO
R
$$$4
MIC
$$$2
AGND
VCOMO
DACL
VCOMO
DACR
GND
BAT+
$$$3
MIC+
1
ANT
AC6956A