Schematics

ADP IN RESET
USB_CHG
TEST
Thermal Detect
SW1
Power
SPK
LED2
White
LED1
BULE
X1 40MHZ
3
GND
2
GND
4
OUT
1
VCC
MIC1
R6
1K
C1
1uF
BATT
LED2
RESET
TX
RX
GND
L7 2.2NH
ANT
1
VREF
2
AVCC_DRV
3
AOUT_LP
4
AOUT_LN
5
AOUT_RN
6
AOUT_RP
7
AVCC
8
VD12_RTX
9
VD33_PA
10
RFIQ_IQM
30
LX_AUDIO
29
HV_AUDIO
28
ADP_IN
27
VBAT
26
HV_CORE
25
LX_CORE
24
ADPSO
23
VDDCORE
22
PO_7
21
PO_6
31
LDO_AUX2
32
HV33
33
P2_0
34
P2_1
35
P2_2
36
MIC2_N/AUXR
37
MIC2_P/AUXL
38
MIC1_N
39
MIC1_P
40
MIC_BAIS
41
GND
20
VPA33
19
LD0_AUX1
18
HW_RST_N
17
PI_1
16
PI_0
15
DIG_OUT
14
XO
13
XI
12
VD12_SYN
11
VD33_SYN
U1
RTL8763BF
C2
1uF
C31
NC
C32
NC
C3
1uF
C4
1uF
C5
1uF
C6
1.2PF
C8
0.6PF
L4 2.7NH
C10
0.75PF
L3 2.2NH
C9
NC
C11
1uF
C12
1uF
C13 1uF
C14 1uF
C15 1uF
C17
1uF
C18
1uF
L1 2.2UH
C19
4.7uF
C20 1uF
C21
4.7uF
C22 4.7uF
C23 4.7uF
L2 2.2UH
C24 4.7uF
C25 1uF
C26
1uF
R4
1K
C27
1uF
C28
1uF
R5 1K
C29
1uF
C30 1uF
R8
10K
R7 10K
1
VCC
2
DN
3
DP
4
5
GND
6
J2
MICRO USB 5P
R2 NC
R3NC
Q1
STS2302
RF
1V8
1V2
VBAT
1V8
SPKP
SPKN
SPKP
SPKN
1V2
3V3
3V3
1V2
XIXO
XI
XO
KEY
LED1
LDO_AUX1
3V3
1V2
1V2
VBAT
1V8
LED2
KEY
LED2
LED1
TX
CHG+5V
CHG+5V
CHG+5V
RESET
3V3
RX
RESET
LED2
RESET
TX
RX