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Keepout Zone
VDD33
EN
IO14
IO12
IO33
IO25
IO26
IO27
GND
IO32
IO35
IO34
SENSOR_VN
SENSOR_VP
37
36
26
25
30
29
28
27
38
31
32
33
34
35
IO23
IO22
IO4
IO0
IO18
IO5
NC
NC
GND
IO19
NC
IO21
RXD0
TXD0
39:GND
3
13
14
9
10
11
12
8
7
6
5
4
15
16
17
18
IO13
GND
CMD
SD3
SD2
IO2
SD1
SD0
CLK
IO15
1
2
19
24
23
22
21
20
A
V DD
IL IO1
IH IO1
IO1
IL
pad
OL IO1
OH IO1
MAX
STR
OPR
IO
∗ Ω
∗ Ω
~~~~
∆ f1
∆ f2
∆ f2 ∆ f1
µ
50 150
0
25
1 ~ 3/s
0
200
250
200
-1 ~ -5/sCooling zone
100
217
50
100 250
Reflow zone
217 60 ~ 90s
Tem
pera
ture
()
Preheating zone150 ~ 200 60 ~ 120s
Ramp-up zone
Peak Temp. 235 ~ 250
Soldering time> 30s
Time (sec.)
Ramp-up zone — Temp.: <150 Time: 60 ~ 90s Ramp-up rate: 1 ~ 3/sPreheating zone — Temp.: 150 ~ 200 Time: 60 ~ 120s Ramp-up rate: 0.3 ~ 0.8/s
Reflow zone — Temp.: >217 60 ~ 90s; Peak Temp.: 235 ~ 250 (<245 recommended) Time: 30 ~ 70s
Cooling zone — Peak Temp. ~ 180 Ramp-down rate: -1 ~ -5/sSolder — Sn&Ag&Cu Lead-free solder (SAC305)
GPIO16
SRAM_CLK
SENSOR_VP
SENSOR_VN
GPIO32
GPIO33 GPIO18
GPIO2
U0TXD
U0RXD
GPIO22
GPIO21
GPIO19
SHD/SD2
SWP/SD3
SCS/CMD
FLASH_CLK
SDO/SD0
SDI/SD1
GPIO23
CHIP_PU
GPIO34
GPIO35
GPIO25
GPIO26
GPIO27
GPIO14
GPIO12
GPIO13
GPIO0
GPIO15
GPIO4
GPIO5
FLASH_CLK
SCS/CMD
SHD/SD2 SWP/SD3
SDI/SD1
SDO/SD0
SCK/CLK
GPIO17
FLASH_CLK
SRAM_CLK
SDO/SD0SWP/SD3
SHD/SD2
SDI/SD1
CHIP_PU
GPIO35
SENSOR_VP
SENSOR_VN
GPIO34
GPIO32
U0RXDGPIO22
GPIO21U0TXD
GP
IO33
GP
IO25
GP
IO4
GP
IO0
GP
IO2
GP
IO15
GP
IO13
GP
IO12
GP
IO14
GP
IO27
GP
IO26
GPIO19
GPIO17SHD/SD2SWP/SD3SCS/CMDSCK/CLKSDO/SD0SDI/SD1GPIO5GPIO18GPIO23
GPIO16
GND
GND
VDD_SDIO
GND
GND
VDD33
GND
GND
VDD_SDIO
VDD33
VDD_SDIO
GND
VDD33
GND
GND
VDD_SDIO
GND
GND
VDD33
GND
GND
GND
GNDGNDGND
GNDVDD33
GND
GND
GND GND
VDD33
GND
VDD33
GND
GND GND
The BLUE netname means 1.8V.
ESP32 Module:with 1.8V Flash & SRAM Pin.1
GND
Pin.2VDD33
Pin.3CHIP_PU/EN
Pin.4SENSOR_VP
Pin.5SENSOR_VN
Pin.6IO34
Pin.7IO35
Pin.8IO32
Pin.9IO33
Pin.10IO25
Pin.11IO26
Pin.12IO27
Pin.13IO14
Pin.14IO12
Pin.15GND
Pin.16IO13
Pin.17SD2
Pin.18SD3
Pin.19CMD
Pin.20CLK
Pin.21SD0
Pin.22SD1
Pin.23IO15
Pin.24IO2
Pin.39GND
Pin.25IO0
Pin.26IO4
Pin.27NC
Pin.28NC
Pin.29IO5
Pin.30IO18
Pin.31IO19
Pin.32NC
Pin.33IO21
Pin.34RXD0
Pin.35TXD0
Pin.36IO22
Pin.37IO23
Pin.38GND
C2
22pF/6.3V(10%)
U2 ESP32-D0WDQ6
VDDA1
LNA_IN2
VDD3P33
VDD3P34
SENSOR_VP5
SENSOR_CAPP6
SENSOR_CAPN7
SENSOR_VN8
CHIP_PU9
VDET_110
VDET_211
32K_XP12
32K
_XN
13
GP
IO25
14
GP
IO26
15
GP
IO27
16
MTM
S17
MTD
I18
VD
D3P
3_R
TC19
MTC
K20
MTD
O21
GP
IO2
22
GP
IO0
23
GP
IO4
24
VDD_SDIO26
GPIO1625
GPIO1727SD_DATA_228SD_DATA_329SD_CMD30SD_CLK31SD_DATA_032
GN
D49
SD_DATA_133GPIO534GPIO1835
GP
IO19
38
CAP
247
VD
DA
43X
TAL_
N44
XTA
L_P
45
GPIO2336
U0T
XD41
GP
IO22
39
GP
IO21
42
VD
D3P
3_C
PU
37
CAP
148
VD
DA
46
U0R
XD40
C12
10uF/6.3V(10%)
C9
0.1uF/6.3V(10%)
C14 4.7pF±0.25pF
C6
10nF/6.3V(10%)
C18
1uF/10V(20%)
C10
0.1uF/6.3V(10%)
C15
2.4pF±0.25pF
C24
2K(5%)
U4
ESP-PSRAM32
CS#1
SO/SIO12
SIO23
VSS4
SI/SIO05SCLK6SIO37VDD8
C4
0.1uF/6.3V(10%)
U1
40MHz+/-10ppm
XIN
1
GN
D2
XO
UT
3
GN
D4
R10
10K(5%)
L4
3.3nH±0.1nH
R14 0R(5%)/NC
R110R(5%)(NC)
J39
IPEX1
2 3
C11
1uF/10V(20%)
R9
10K(5%)
C16
270pF/6.3V(10%)
U3
FLASH
/CS1
DO2
/WP3
GN
D4
DI5
CLK6
/HOLD7
VC
C8
R1 20K(5%)
D1ESD3.3V88D-LCDN
C5
3.3nF/6.3V(10%)
R12 0R(5%)
R15 0R(5%)
C17
270pF/6.3V(10%)
C1
22pF/6.3V(10%)
C13
10uF/6.3V(10%)
C3
100pF/6.3V(10%)
R13 0R(5%)
C19
0.1uF/6.3V(10%)
ANT1
PCB ANT
12
NC3
GPIO12GPIO14
GND
ENSENSOR_VPGPI36SENSOR_VNGPI39
GPI34GPI35GPIO32GPIO33GPIO25GPIO26GPIO27
GPIO13GND
SD2SD3CMD
GPIO23GPIO22TXD0RXD0GPIO21
GPIO19GPIO18
GPIO4GPIO0
GPIO5
CLKSD0SD1GPIO15GPIO2
GND
GPIO14GPIO12GPIO13GPIO15
EN
VDD33
GND GND
GND
GND
VDD33
GND
MTMSMTDIMTCKMTDO
Reset Button
JP2Boot Option
11
22
C3
0.1uF/50V(10%
)
U1
ESP32_WROVER
GND11
3V32
EN3
SENSOR_VP4
SENSOR_VN5
IO346
IO357
IO328
IO339
IO2510
IO2611
IO2712
IO1413
IO1214
GND215
IO1316
SD217
SD318
CMD19
CLK20SD021SD122IO1523IO224IO025IO426NC127NC228IO529IO1830IO1931NC32IO2133RXD034TXD035IO2236IO2337GND338P_GND39
R2 0R(5%)
SW1
C4 0.1uF/50V(10%)
JP1
UART
11
22
33
44C2
0.1uF/50V(10%
)
C1
22uF/25V(10%
)
JP3
JTAG
11
22
33
44
R1
10K(5%)
Unit: mm
