5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Analog MIC1 Audio
Amplifier
BOOST
(Option)
Charger
(Option for charge current > 400mA)
Value depending on
charging current
Button
Reserve for Input attenuation
To have optimized output power
Reserve for EMI supression
Reserve for EMI supression
UART_RX
UART_TX
LOG
Must reserve
RESET
power key
ADP in reset
Option1
Option2
near Pin 28
near Pin 27
C11 NC
AUXIN audio Jack
PCB Antenna
RFIO
Antenna Matching Circuit
Value depand on Antenna
LED
For analog mems mic,
keep MIC_N floating,
MIC_P is used as single end mode
MIC1_P
MIC1_N
BOOST_EN
KEY1
KEY0
OUT_LP
OUT_LN
OUT_RN
OUT_RP
G1
G2
AOUT_LP
AOUT_RP
SPK_O_L_N OUT_LN
OUT_LPSPK_O_L_P
SPK_O_R_N OUT_RP
OUT_RNSPK_O_R_P
KEY1
KEY2
LED2
HW_RST_N
KEY2
AMP_EN#
G1
G2
HW_RST_N
HW_RST_N
LX_AUDIO
LX_CORE
AVCC
LX_AUDIO
LX_CORE
KEY0
DIGOUT
RFIO
LED2
AUXIN_DET
KEY2
AOUT_RP
HW_RST_N
LED1
XI
XO
KEY1
KEY2
AMP_EN#
XI XO
MIC1_N
MIC1_P
MIC_BIAS
BOOST_EN
AOUT_LP
AUXIN_R
AUXIN_L
AUXIN_L
AUXIN_R
AUXIN_DET
RFIO
LED0
LED1
MIC1_P
MICBIAS
VDD_AMP_DRIVEVDD_A
GND_AUDIO_DRIVE
GND_AUDIO_DRIVE
VBAT
VDD_A
GND_A
VBAT
VDD_AMP
VDD_ADP
VBAT
VDD_ADP
VDD_AMP
VBAT
GND_A
GND_AUDIO_DRIVE
VDD_AMP_DRIVE
GND_A
GND_A
GND_A
GND_A
GND_A
GND_AUDIO_DRIVE
GND_A
VDD_ADP
VDD_AMP_DRIVE
GND_A
GND_A
VDD_ADP
VDD_ADP
VDD_1V8
VDD_1V2
VDD_3V3
VDD_VBAT
VDD_ADP
VDD_1V2
VDD_1V2 VDD_1V2
VDD_LDO_AUX2
VDD_VBAT
VDD_ADP
VDD_3V3
VDD_1V8
VDD_LDO_AUX1
VDD_3V3
VDD_LDO_AUX2
MIC_BIAS
Title
Size Document Name Rev
Date: Sheet of
RTL8763B Reference circuit
1.4
RTL8763BF_QFN40_Speaker_ref design_1V4
R E A L T E K S e m i c o n d u c t o r C o r p .
A d d r : N o . 2 , I n n o v a t i o n R d . I I , H s i n c h u S c i e n c e P a r k , H s i n c h u 3 0 0 7 6 , T a i w a n
T E L : 8 8 6 - 3 - 5 7 8 0 2 1 1
C
1 1Wednesday, April 17, 2019
Title
Size Document Name Rev
Date: Sheet of
RTL8763B Reference circuit
1.4
RTL8763BF_QFN40_Speaker_ref design_1V4
R E A L T E K S e m i c o n d u c t o r C o r p .
A d d r : N o . 2 , I n n o v a t i o n R d . I I , H s i n c h u S c i e n c e P a r k , H s i n c h u 3 0 0 7 6 , T a i w a n
T E L : 8 8 6 - 3 - 5 7 8 0 2 1 1
C
1 1Wednesday, April 17, 2019
Title
Size Document Name Rev
Date: Sheet of
RTL8763B Reference circuit
1.4
RTL8763BF_QFN40_Speaker_ref design_1V4
R E A L T E K S e m i c o n d u c t o r C o r p .
A d d r : N o . 2 , I n n o v a t i o n R d . I I , H s i n c h u S c i e n c e P a r k , H s i n c h u 3 0 0 7 6 , T a i w a n
T E L : 8 8 6 - 3 - 5 7 8 0 2 1 1
C
1 1Wednesday, April 17, 2019
C217
0.1uF
Q29
3904
B
1
C
3
E
2
D7
LED
U2
ALC105-VF
OUT_LP
1
OUT_LN
2
PVDD1
3
PVDD2
4
OUT_RN
5
OUT_RP
6
PD#
7
BYPASS
8
IN_R/DIFF+
9
IN_L/DIFF-
10
G1
11
G2
12
GND
13
C158
4.7uF
X5R
C7
680pF
C216
1uF
TP18
TP
1
R27
20K
C159
1uF
X5R
L11
BEAD
1 2
R92
100
C13 1uF
C8
680pF
C33
100uF
R91
100
R4 0
C175
1.2pF
NP0
C162
4.7uF
X5R
D1
Schottky
C160
1uF X5R
L4 BEAD
1 2
C176
0.6pF
NP0
C163
1uF
X5R
D6
LED
SW3
SW-TACT
C161
0.1uF
L3 BEAD
1 2
C59
4.7uF
R87
10K
TP6
1
C177
1.5pF
NPO
C164
4.7uF
X5R
TP17
TP
1
L25
2.2nH
ACX HI1005-1C
1 2
R10
0
TP51 RF Test Point
RF
1
2
GND
L24
0
1 2
C165
1uF
X5R
C61
4.7uF
C11
1uF
R28
1K
R90 0
ANT2
R6
NC
2.65X3.5
2.3X3.5
U37
SPH1611LR5H-1
MIC
1
GND
2
GND
3
GND
4
VDD
5
Q28
STS2306
3
1
2
C16
0.1uF
TP19
TP
1
C17
0.33uF
TP15
TP
1
R12
NC 0
C166
1uF
X5R
C12
0.33uF
C34
100uF
U24
RTL8763BF
VREF
1
AVCC_DRV
2
AOUT_RN
5
MIC1_N
38
MIC2_P/AUXL
37
AOUT_RP
6
AVCC
7
VD12_RTX
8
VD33_PA
9
RFIO_IQM
10
VD12_SYN
12
VD33_SYN
11
XI
13
XO
14
DIG_OUT
15
P1_0
16
P1_1
17
HW_RST_N
18
LDO_AUX1
19
VPA33
20
P0_6
21
P0_7
22
VDDCORE
23
ADPSO
24
LX_CORE
25
HV_CORE
26
VBAT
27
ADP_IN
28
HV_AUDIO
29
LX_AUDIO
30
LDO_AUX2
31
HV33
32
P2_0
33
P2_1
34
P2_2
35
MIC2_N/AUXR
36
MIC1_P
39
MIC_BIAS
40
AOUT_LN
4
AOUT_LP
3
GND
41
C145
1uF
C167
1uF
X5R
U7
APW7237
LX
1
GND
2
FB
3
EN
4
VIN
5
SW5
SW-TACT
R30
600K
C149
1uF X5R
R9
NC 0
R7
10K
C173
10pF
L2 BEAD
1 2
C150
1uF
X5R
C37 1uF/X5R
L7
BEAD
1 2
C15
10uF
C32
10uF
R5
0
X4
40MHz Xtal
Frequency Tolerence: 5ppm;Frequency Stability over temperature range:15ppm.
R53-027_SX-2520_40MHz_9pF
X1
1
GND
2
GND
4
X2
3
TP4
TP
1
L14
10uH-ZAH-7050
1 2
R89 10K
L10
BEAD
1 2
TP13
TP
1
R20
10K
R3
NC
R2
2K2
12
TP5
TP
1
D5
Schottky
C62
10uF
R1
2K2
12
C18
1uF
C151
1uF
X5R
C19 2.2uF
TP16
TP
1
R23
1K
TP3
1
L9
BEAD
1 2
C152
1uF
X5R
TP14
TP
1
C4
680pF
L5 BEAD
1 2
C153
1uF
X5R
C147
1uF
X5R
SW2
SW-TACT
TP2
TP
1
L22 2.2uH
ZWP-0603-2R2K-V0
C148
1uF
X5R
TP20
TP
1
C31
1uF
D4
LED U6
APL3202
STAT
1
GND
2
BAT+
3
VIN
4
ISET
5
R8
10K
R88
10K
C174
1.5pF
NPO
L23 2.2uH
ZWP-0603-2R2K-V0
C5
680pF
C146
1uF
C172
10pF
TP1
TP
1
R31
200K
C154
4.7uF
X5R
L8
NC
1 2
C156
4.7uF
X5R
C38 1uF/X5R
C6
1uF
R13
0
C157
4.7uF
X5R
C155
NC
U3
PJ2503B
6
1
2
3
5
4
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