Appendix A
A.
Appendix - Schematics
The upper board (A)
!
!
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
The blue NETNAME means 1.8V level.
The purple color means INPUT only.
ESP32 Module:
Package:0603.
For Module Current
test reserved.
When USB is plugged in,VCC will be only powered by USB.
Otherwise, VCC is powered by VBAT.
BATTERY
Accurary of R5 should be 1%.
Please keep this block,it directly shows Pin assignment.
If you wanna change Pin assignment,just revise this block.
USB:
Charge Circuit:
Power Switch:
USB<->UART:
Power Supply For ESP32:
3.3V/1A
EN
DGND
ESP_VDD33
DGND
GPIO33
GPIO12
GPIO14
GPIO26
GPIO27
GPI34
GPI35
GPIO32
GPIO25
GPIO22
TXD0
GPIO19
GPIO18
GPIO23
DGND
GPIO5
RXD0
GPIO21
GPIO4
GPIO0
D
GN
D
NC3
SD
2
SD
3
CM
D
GP
IO1
3
GP
IO2
GP
IO1
5
SD
1
C
LK
SD
0
SENSOR_VN
GPI39
EN
SENSOR_VP
GPI36
ESP_VDD33
GPIO27
GPIO26
GPIO14
GPIO12
GPIO33
GPIO25
GPIO32
SD2
SD3
CMD
GPIO13
CLK
SD0
SD1
GPIO15
GPIO2
GPI34
GPI35
SENSOR_VP
GPI36
SENSOR_VN
GPI39
GPIO16_NC
GPIO22
TXD0
GPIO17_NC
GPIO19
GPIO18
GPIO23
DGND
GPIO5
RXD0
GPIO21
GPIO4
GPIO0
NC3
GPIO16_NC
GPIO17_NC
EN
TXD0
RXD0
IO12
IO13
IO14
IO15
IO19_ZL38063_RESETN
IO18_SDA
IO5_ZL38063_I2S_SCKA
IO25_ZL38063_I2S_WSA
I35_ZL38063_I2S_SDOA
IO2
IO0_Boot
IO4
IO22_PA_EN
IO23_SCL
IO18_SDA
DGND
I34_MicroSD_DET
I39_Button_Array
IO26_ZL38063_I2S_SDIA
IO21_LDO_CTRL
TEMP
USB_DP
TXD
R
XD
RXD0
USB_DN
REGIN
R
ST#
TXD0
USB_DN
USB_DP
D-
D+
IO23_SCL
IO32_ZL38063_SPI_HCLK
IO0_ZL38063_SPI_HCS
IO33_ZL38063_SPI_HDIN
I36_VBAT_ADC
GPI36
GPIO19
IO19_ZL38063_RESETN
GPI35
GPIO5
GPIO25
I35_ZL38063_I2S_SDOA
IO5_ZL38063_I2S_SCKA
IO25_ZL38063_I2S_WSA
GPIO26
IO26_ZL38063_I2S_SDIA
GPIO32
GPIO33
IO0_Boot
GPIO0
IO32_ZL38063_SPI_HCLK
IO33_ZL38063_SPI_HDIN
IO0_ZL38063_SPI_HCS
GPIO27
TXD0
TXD0
RXD0
RXD0
EN
EN
I39_Button_Array
GPI39
I34_MicroSD_DET
GPI34
IO22_PA_EN
GPIO22
IO21_LDO_CTRL
GPIO21
GPIO23
GPIO18
IO23_SCL
IO18_SDA
GPIO12
GPIO13
GPIO14
GPIO15
IO12
IO13
IO14
IO15
IO2
IO4
GPIO2
GPIO4
IO27_ZL38063_SPI_HDOUT
IO27_ZL38063_SPI_HDOUT
EN
I36_VBAT_ADC
EN
VDD33
DGND
VCC
VCC_For_Audio
VCC_For_LDO
VCC
GND
GND
GND
VBAT
VUSB
VCC_PRE
GND
VBUS
GND
GND
GND
GND
VBUS
VBAT
VDD33
GND
DGND
GND
GND
GND
VDD33
GND
VDD33
GND
VBUS
VUSB
GND
GND
GND
VBUS
DGND
ESP_VDD33
VBAT
DGND
VBUS
CP_VBUS
GND
GND
VCC_For_LDO
DGND
DGND
DGND
DGND
VDD33
DGND
DGND
ESP_VDD33
VBAT
EN
4
I39_Button_Array
4
IO12
4
IO13
4
IO14
4
IO15
4
TXD0
4
RXD0
4
IO19_ZL38063_RESETN
2
IO5_ZL38063_I2S_SCKA
2,4
IO25_ZL38063_I2S_WSA
2,4
I35_ZL38063_I2S_SDOA
2,4
I34_MicroSD_DET
4
IO2
4
IO0_Boot
4
IO4
4
IO22_PA_EN
3
IO26_ZL38063_I2S_SDIA
2,4
IO21_LDO_CTRL
4
IO23_SCL
4
IO18_SDA
4
IO32_ZL38063_SPI_HCLK
2,4
IO33_ZL38063_SPI_HDIN
2,4
IO0_ZL38063_SPI_HCS
2,4
IO27_ZL38063_SPI_HDOUT
2,4
Title
Size
Document Number
R e v
Date:
Sheet
o f
<Doc>
V1
01_Power_ESP32
C
1
4
Friday, February 23, 2018
Title
Size
Document Number
R e v
Date:
Sheet
o f
<Doc>
V1
01_Power_ESP32
C
1
4
Friday, February 23, 2018
Title
Size
Document Number
R e v
Date:
Sheet
o f
<Doc>
V1
01_Power_ESP32
C
1
4
Friday, February 23, 2018
R14
10K(5%)
C12
10
uF/
16
V(20
%)
R39
0R(5%)
C8
22uF/10V(20%)
D3
LESD5D5.0CT1G
R1
0R(5%)
R36
1K(1%)
C13
10nF/50V(10%)
R25
10nF/50V(10%)
R27
0R(5%)
R230
0R(5%)
R38
0R(5%)
R10
0R(5%)
R17
33R(5%)
D4
LESD5D5.0CT1G
L2
3A@120ohm(25%),25mohm
R28
0R(5%)
J3
CON2
1
2
R165
0R(5%)
C5
22uF/10V(20%)
U2
ESP-WROOM-32(NC)
GND1
1
3V3
2
EN
3
SENSOR_VP
4
SENSOR_VN
5
IO34
6
IO35
7
IO32
8
IO33
9
IO25
10
IO26
11
IO27
12
IO14
13
IO12
14
GND3
38
IO23
37
IO22
36
TXD0
35
RXD0
34
IO21
33
NC
32
IO19
31
IO18
30
IO5
29
IO17
28
IO16
27
IO4
26
IO0
25
GN
D
2
15
IO
1
3
16
SD
2
17
SD
3
18
CMD
19
CL
K
20
SD
0
21
SD
1
22
IO
1
5
23
IO
2
24
P_GND
39
C3
15pF/50V(5%)(NC)
D2
LESD5D5.0CT1G
R40
0R(5%)
C17
0.1uF/16V(10%)
R2
0R(5%)
R231
0R(5%)(NC)
C9
0.1uF/16V(10%)
R15
51K(1%)(NC)
TP25
1
R35
0R(5%)
R24
0R(5%)
R166
0R(5%)
C2
0.
1u
F/1
6V
(10
%)
TP26
1
D6
GREEN LED
R37
0R(5%)
R5
0R(5%)
R20
0R(5%)
C16
1uF/25V(10%)
U6
CP2102N-A01-GQFN28
DCD
1
RI
2
GND
3
D+
4
D-
5
VDD
6
REGIN
7
VBU
S
8
RS
T
9
NC1
10
SU
SPEN
D
11
SU
SPEN
D
12
NC2
13
NC3
14
NC4
15
NC5
16
NC6
17
NC7
18
NC8
19
NC9
20
NC10
21
NC1
1
22
CTS
23
RTS
24
RX
D
25
TX
D
26
DS
R
27
DTR
28
PGN
D
29
R22
0R(5%)
D5
RED LED
R176
47.5K(5%)
R32
1K(1%)
J2
SK12D07
1
2
3
R6
0R(5%)
R26
0R(5%)
R18
10K(5%)
R21
0R(5%)
Q1
AO3401
J8
USB_CON8
VBUS
1
D-
2
D+
3
GND
5
NC
4
GND
6
GND
7
GND
8
GND
9
R33
1K(1%)
R7
0R(5%)
R167
0R(5%)
C4
10uF/16V(20%)
U5
AP5056
TEMP
1
PROG
2
GND
3
VCC
4
BAT
5
STDBY
6
CHRG
7
CE
8
PGND
9
R11
0R(5%)
R8
0R(5%)
U16
IMP809REUR/T(2.63V)
GND
1
VCC
3
RESET#
2
U3
ESP32_WROVER
GND1
1
3V3
2
EN
3
SENSOR_VP
4
SENSOR_VN
5
IO34
6
IO35
7
IO32
8
IO33
9
IO25
10
IO26
11
IO27
12
IO14
13
IO12
14
GND2
15
IO13
16
SD2
17
SD3
18
CMD
19
CLK
20
SD0
21
SD1
22
IO15
23
IO2
24
IO0
25
IO4
26
NC1
27
NC2
28
IO5
29
IO18
30
IO19
31
NC
32
IO21
33
RXD0
34
TXD0
35
IO22
36
IO23
37
GND3
38
P_GND
39
L1
3A@120ohm(25%),25mohm
R3
10K(5%)
R12
0R(5%)
C15
0.1uF/16V(10%)
R42
10K(5%)
R164
0R(5%)
R44
5.1K(5%)(NC)
R23
10K(5%)(NC)
J1
USB_CON8
VBUS
1
D-
2
D+
3
GND
5
NC
4
GND
6
GND
7
GND
8
GND
9
C11
10
0u
F/6
.3
V(20
%)
R13
0R(5%)
R30
100K(5%)
R232
100K(5%)
R41
22K(5%)
R4
10K(5%)
C7
10uF/16V(20%)
R34
0R(5%)
R31
100K(5%)
R16
0R(5%)
R182
1K(1%)
C14
1uF/25V(10%)
R168
0R(5%)(NC)
C1
10
0u
F/6
.3
V(20
%)
C6
0.1uF/16V(10%)
R9
0R(5%)
R19
33R(5%)
R29
0R(5%)
R229
0R(5%)
U4
TPS79633DCQR
EN
1
NR/FB
5
VIN
2
OUT
4
GN
D
3
Ta
b
6
R175
22.1K(5%)
D1
1N5819
C10
10uF/16V(20%)
D16
RED LED
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
Notes:
1.EXT_SEL
：
VDD +1.2 V Select. Select external +1.2 V supply. Tie to DVDD33 if
the +1.2 V supply is to be provided externally. Tie to VSS (0 V) if the +1.2
supply is to be generated internally.
2.VDD12_CTRL
：
VDD +1.2 V Control. Analog control line for the voltage regulator
external FET when EXT_SEL is tied to VSS. When EXT_SEL is tied to DVDD33, the
VDD12_CTRL pin becomes a CMOS output which can drive the shutdown input of an
external LDO.
3.Please place one 0.1uF/10V(20%) CAP close to each of the Power Pins.
Maximum frequency of master SPI clk = 8 MHz.
NC.Test Points Reserved.
Notes:
1.HCLK:This input should be tied to VSS in I2C mode;
2.HCS:HBI I2C Serial Clock Input. This pin functions as the I2C_SCLK
input in I2C mode.
3.HDIN:This input selects the slave address in I2C mode,to VSS,I2C slave
address:0'b 100 0101=0x45H(7-bit).
4.HDOUT:HBI I2C Serial Data (Input/Output). This pin functions as the
I2C_SDA I/O in I2C mode.
5.Apply a 3.3 K? resistor from GPIO_2 to DVDD33,can set auto-boot from
external flash;if GPIO_2=0,Host boot(default).
TDM
B
no
t in
use
:
connec
t
to
GND
Power Supply for DSP:
Notes:
1.Vout=1.204*(1+R1/R2)=3.296V;
R1=52.3K,R2=30.1K are recommended for better performance.
2.RT9043GB from RichTek for second source.
Notes:
1.Vout=1.204*(1+R1/R2)=1.204V;
R1=short,R2=open are recommended for better performance.
2.RT9043GB from RichTek for second source.
R2
R1
R2
R1
TXC:8Z-12.000MAAJ-T
DSP.1:Interface
DSP.2:Power
ZL38063_VDD12_CTL
ZL38063_EXT_SEL
ZL38063_1V2_EN
SM_CLK
SM_CS
SM_MISO
SM_MOSI
SM_RESET
ZL38063_SO
ZL38063_SI
ZL38063_CSN
ZL38063_SCLK
IO19_ZL38063_RESETN
SM_HCS
SM_HDIN
SM_HDOUT
SM_I2S_SCKA
SM_I2S_WSA
SM_I2S_SDIA
SM_I2S_SDOA
ZL38063_UART_RX
ZL38063_UART_TX
SM_HINT
SM_HCLK
IO5_ZL38063_I2S_SCKA
IO25_ZL38063_I2S_WSA
IO26_ZL38063_I2S_SDIA
I35_ZL38063_I2S_SDOA
SM_I2S_SCKB
SM_I2S_WSB
SM_I2S_SDIB
SM_I2S_SDOB
RX
TX
SM_I2S_SCKA
SM_I2S_WSA
SM_I2S_SDOA
SM_I2S_SDIA
ZL38063_DAC1_P
ZL38063_DAC1_M
ZL38063_DAC2_P
ZL38063_DAC2_M
ZL38063_DMIC_IN1
ZL38063_DMIC_IN2
ZL38063_DMIC_CLK
ZL38063_GPIO0
ZL38063_GPIO1
ZL38063_GPIO2
ZL38063_GPIO3
ZL38063_GPIO4
ZL38063_GPIO5
ZL38063_GPIO6
ZL38063_GPIO7
ZL38063_GPIO8
ZL38063_GPIO10
ZL38063_GPIO11
ZL38063_GPIO12
ZL38063_GPIO13
ZL38063_HINT
ZL38063_1V2_EN
ZL3
80
63
_L
D
O_
EN
ZL38063_UART_RX
ZL38063_UART_TX
IO27_ZL38063_SPI_HDOUT
ZL38063_HINT
IO33_ZL38063_SPI_HDIN
IO0_ZL38063_SPI_HCS
IO32_ZL38063_SPI_HCLK
IO19_ZL38063_RESETN
ZL38063_DAC1_P
ZL38063_DAC1_M
ZL38063_DMIC_CLK
ZL38063_DMIC_IN1
ZL38063_DMIC_IN2
ZL38063_LDO_EN
IO26_ZL38063_I2S_SDIA
IO33_ZL38063_I2S_SCKA
IO25_ZL38063_I2S_WSA
I35_ZL38063_I2S_SDOA
IO0_ZL38063_SPI_HCS
IO33_ZL38063_SPI_HDIN
IO32_ZL38063_SPI_HCLK
IO27_ZL38063_SPI_HDOUT
DSP_GND
DSP_GND
ZL38063_3V3
DSP_GND
ZL38063_1V2
DSP_GND
DSP_GND
DSP_GND
ZL38063_3V3
DSP_GND
DSP_GND
DSP_GND
ZL38063_3V3
ZL38063_3V3
ZL38063_3V3
DSP_GND
ZL38063_3V3
DSP_GND
DSP_GND DSP_GND
DSP_GND
DSP_GND
DSP_GND
DSP_GND
ZL38063_3V3
DSP_GND
ZL38063_3V3
DSP_GND
DSP_GND
VCC_For_LDO
DSP_GND
DSP_GND
DSP_GND
ZL38063_3V3
DSP_GND
DSP_GND
ZL38063_3V3
DSP_GND
DSP_GND
DSP_GND
ZL38063_1V2
DSP_GND
DGND
DSP_GND
IO19_ZL38063_RESETN
1
IO5_ZL38063_I2S_SCKA
1,4
IO25_ZL38063_I2S_WSA
1,4
I35_ZL38063_I2S_SDOA
1,4
ZL38063_DAC1_P
3,4
ZL38063_DAC1_M
3
ZL38063_DMIC_CLK
4
ZL38063_DMIC_IN1
4
ZL38063_DMIC_IN2
4
ZL38063_LDO_EN
4
IO26_ZL38063_I2S_SDIA
1,4
IO32_ZL38063_SPI_HCLK
1,4
IO33_ZL38063_SPI_HDIN
1,4
IO0_ZL38063_SPI_HCS
1,4
IO27_ZL38063_SPI_HDOUT
1,4
Title
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Document Number
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V1
02_ZL38063
C
2
4
Friday, February 02, 2018
Title
Size
Document Number
R e v
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Sheet
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V1
02_ZL38063
C
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Friday, February 02, 2018
Title
Size
Document Number
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Sheet
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V1
02_ZL38063
C
2
4
Friday, February 02, 2018
TP24
1
C50
10
nF/
50
V(10
%)(
N
C
)
TP19
1
R83
33R(5%)
R79
33R(5%)
C45
0.
1u
F/1
6V
(10
%)
R66
33R(5%)
TP11
1
C27
18
pF/
50
V(±
5%
)
L6
3A@120ohm(25%),25mohm
C38
0.1uF/16V(10%)
R102
10K(5%)(NC)
TP20
1
C44
0.
1u
F/1
6V
(10
%)
R
85
33
R
(5%)(NC
)
R109
0R(5%)
TP12
1
R105
0R(5%)
R97
33R(5%)(NC)
TP16
1
R
86
33
R
(5%)(NC
)
C35
0.1uF/16V(10%)
R75
33R(5%)
R67
33R(5%)
R
92
10
0K
(5%)
C22
1uF/25V(10%)
R107
10K(5%)
R
53
3.
3K
(5%)
R62
33R(5%)
TP13
1
R84
10K(5%)
SPI Master
SPI/I2C
Slave
TDM/I2S
PortA
TDM/I2S
PortB
GPIO
UART
ANALOG OUT
DIGITAL
MIC IN
Oscillator
Reference
USB
U8A
ZL38063
SM_CLK
1
SM_MISO
2
SM_MOSI
3
RESET
15
DMIC_CLK
18
DMIC_IN1
19
DMIC_IN2
20
XI
22
XO
23
UART_RX
50
UART_TX
49
HDIN
55
HDOUT
56
HINT
57
PCLKB/I2S_SCKB
60
FSB/I2S_WSB
61
DRB/I2S_SDIB
62
DXB/I2S_SDOB
63
GPIO_0
33
GPIO_1
34
GPIO_2
36
GPIO_3
37
GPIO_4
38
GPIO_5
39
GPIO_6
40
GPIO_7
41
GPIO_8
43
GPIO_9/SM_CS
64
GPIO_10
44
GPIO_11
45
GPIO_12
47
GPIO_13
48
PCLKA/I2S_SCKA
29
FSA/I2S_WSA
30
DRA/I2S_SDIA
31
DXA/I2S_SDOA
32
HCLK
52
HCS
53
CREF
13
DAC1_M
6
DAC1_P
7
DAC2_P
8
DAC2_M
9
CDAC
12
DM
25
DP
27
RTN
26
R98
33R(5%)(NC)
TP17
1
R76
33R(5%)
C43
0.
1u
F/1
6V
(10
%)
R65
33R(5%)
TP15
1
TP14
1
R110
10K(5%)(NC)
R99
33R(5%)(NC)
R45
100K(5%)
R63
33R(5%)
R73
3.3K(5%)(NC)
U10
TPS73601DBVR@400mA
EN
3
OUT
5
VIN
1
NR/FB
4
GN
D
2
U9
TPS73601DBVR@400mA
EN
3
OUT
5
VIN
1
NR/FB
4
GN
D
2
C42
0.
1u
F/1
6V
(10
%)
R69
33R(5%)
Y1
12MHz
C23
1uF/25V(10%)
R104
52.3K(1%)
L7
3A@120ohm(25%),25mohm
L3
3A@120ohm(25%),25mohm
R96
33R(5%)(NC)
L5
3A@120ohm(25%),25mohm
R71
33R(5%)
R47
33R(5%)
TP3
1
R
93
10
0K
(5%)
R72
33R(5%)
C19
1uF/25V(10%)
C18
0.1uF/16V(10%)
R103
10K(5%)
C40
30
.1
K(1%
)
C54
10
nF/
50
V(10
%)(
N
C
)
TP5
1
R74
33R(5%)
R46
10K(5%)
C41
0.1uF/16V(10%)
U8B
ZL38063
DVDD12_2
14
DVDD12_3
24
DVDD12_4
42
DVDD12_1
4
DVDD12_5
58
VDD12_CTL
16
VDD33_XO
28
DVDD33_1
5
AVDD33_1
10
AVDD33_2
11
DVDD33_2
21
DVDD33_3
35
DVDD33_4
46
DVDD33_5
51
DVDD33_6
59
AGND
65
EXT_SEL
17
VSS
54
R48
33R(5%)
R
94
10
0K
(5%)
C39
10
uF/
16
V(20
%)
R59
33R(5%)
TP6
1
C25
0.1uF/16V(10%)
R106
10K(5%)(NC)
R80
33R(5%)
U7
W25Q16JVSNIQ
CS
1
SO/SIO1
2
WP
3
GND
4
SI/SIO0
5
SCLK
6
HOLD
7
VCC
8
JP6
CON2X1_2P54
1
1
2
2
R77
10K(5%)
C51
0.
1u
F/1
6V
(10
%)
C53
10
uF/
16
V(20
%)
C36
0.1uF/16V(10%)
C26
0.
1u
F/1
6V
(10
%)
TP7
1
R101
10K(5%)
R58
33R(5%)
R
95
10
0K
(5%)
R56
33R(5%)
R81
33R(5%)
R68
33R(5%)
C47
0.
1u
F/1
6V
(10
%)
TP21
1
C32
10
nF/
50
V(10
%)(
N
C
)
C49
0.
1u
F/1
6V
(10
%)
R60
33R(5%)
L8
3A@120ohm(25%),25mohm
L4
3A@120ohm(25%),25mohm
C52
10
uF/
16
V(20
%)
JP8
CON2X5_2P54(NC)
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
TP8
1
R70
33R(5%)
R100
100K(5%)
R55
10K(5%)
C29
1u
F/1
6V
(10
%)
C37
0.1uF/16V(10%)
C21
1uF/25V(10%)
TP22
1
R54
33R(5%)
R49
33R(5%)
R52
100K(5%)
R87
10K(5%)(NC)
R108
0R(5%)
R
57
3.
3K
(5%)(NC
)
C46
0.
1u
F/1
6V
(10
%)
C28
18
pF/
50
V(±
5%
)
C33
0.
1u
F/1
6V
(10
%)
TP9
1
TP27
1
TP23
1
TP18
1
C31
0.1uF/16V(10%)
R82
33R(5%)
R78
33R(5%)
C30
0.
1u
F/1
6V
(10
%)
R51
33R(5%)
R50
33R(5%)
TP10
1
TP4
1
R64
33R(5%)
R
61
3.
3K
(5%)(NC
)
C48
0.
1u
F/1
6V
(10
%)
C34
10
uF/
16
V(20
%)
Espressif
!
/15
12
2018.07