Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
LED5
LEDTX LEDTX1
VCOM
DAC_G
DAC_LR
USBDP
BT_RF
MBAT
VDD3.3V
OSC24MI
OSC24MO
USBDM
OSC24MO
OSC24MI
ONOFF/PP
AL_OUT+
AL_OUT-
MUTE
DAC_LR
LED3
BT_RF
LEDON
LEDON
MUTE
LEDM
LED_BT
LEDW
LED4
LED2
LED1
ONOFF/PP
LEDM
LEDW
LED1
LED2
LED3 LED4
MBAT
DC
LED5V1
LEDG
LEDVD
DAC_G
DAC_G
DAC_G
VBAT
BAT
AMP_GAMP_G
DAC_G
DC
LED5V1
BAT LED5V1
LEDV
P_GND
5V1
P_GNDP_GND
BAT
DC
P_GND
DC D3 4148
C8
10uF
C4 2.7P
D1 SS34
U4 UCB2220
SW
1
FB
3
NC
6
IN
5
GND
2
EN
4
K3 ON/PP
R9 100K
LED5
W
SP1
SP
1
2
C15
10uF/16v
R6 1K
C2
1uF
R12 1K
R1 33KC7 104
C10
104
Y1
24MHZ-12pF-10ppm
4 1
3 2
C6
1uF/16v
L1
10uH
TP3
LED4
GRE
R7 1K
K2 LEDM
R4
100K
Q1 2301
3
1
2
R8 1K
LED2
BLU
C3
1uF
LED1
RED
U3 AC6965E
PC5/SD0CLKA/ADC12
1
PC4/SD0CMDA/ADC11
2
DM/PC3/SD0DATA/ADC14
3
DP/ADC13
4
PA4/AUX0R/ADC3
5
PA3/AUX0L/ADC2
6
PA2/MIC_BIAS
7
PA1/MIC/ADC1
8
PA0/SD_PG/ADC0
9
VCOM
11
DACVSS
10
VDDIO
18
ADC9/AUX1R/SD0CLKF/PB7
13
ADC8/AUX1L/SD0CMDF/PB6
14
ADC7/SD0DATF/PB4
15
LDO_IN/PB5
16
DACL
12
VBAT
17
ADC5/PB1
19
BT_RF
22
FMIP
21
VSSIO
20
BT_OSCI
23
BT_OSCO
24
Q3
8050
U1
NS4165
ST
1
VO2
8
BY
2
GND
7
+
3
VDD
6
-
4
VO1
5
C5
1uF
C13
1uF
Q6
8050
ANT1
ANT-PIFA
1
R20
220K
R5 NC
C11
10uF/16v
C1
1uF
LED3
RED
USB1
MICROP
+5V
1
D-
2
D+
3
GND
4
GND
5
GND
6
GND
7
J5
CON5P
1
1
2
2
3
3
4
4
5
5
6
6
R17
10K
CN5
1.25-3
1
1
2
2
3
3
TP4
Q5
8050
R15
10K
CN1
1.25-3
1
1
2
2
3
3
C13
47uF/6.3v
LED6
BLU
Q4
8050
R18
10K
C9
NC
R5 1K
R16
10K
R14
10K
K1 LEDW
R2
1K
R3
NC
J4
CON5P
1
1
2
2
3
3
4
4
5
5
6
6
R19
10K
C12
30P
Q2
8050