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STEVAL-ASTRA1B Datasheet(PDF) 15 Page - STMicroelectronics

Part # STEVAL-ASTRA1B
Description  Multiconnectivity asset tracking reference design based on STM32WB5MMG and STM32WL55JC
PDF  28 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STEVAL-ASTRA1B Datasheet(HTML) 15 Page - STMicroelectronics

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Figure 14. System on board (STEVAL-ASTRA1SB) circuit schematic (5 of 10)
V_UNREG_HMI
V_REG_HMI
GND
LED_R
LED_G
LED_B
R914 0R
R927
82R
J937
SOLDER JUMPER3
R918
120k
R915 0R
Q1
VT6X1T2R
5
2
R919
51k
R916 0R
R922
33R
D902
Led_RGB
2
K1
1
A
4
K3
3
K2
Q2
2SCR522MT2L
1
R920
20R
R917
30k
V_UNREG_HMI
V_REG_HMI
LED_R
LED_G
LED_B
V_UNREG_HMI
V_REG_HMI
GND
LED_R
LED_G
LED_B
Figure 15. System on board (STEVAL-ASTRA1SB) circuit schematic (6 of 10)
PI f i l t er
V_UNREG
V_REG_OUT_2
V_REG_OUT
WB_VDD
WB_VDD_USB
WB_GND
WB_GND_RF
WL_GND
WL_VDD
VOUT2_CTRL
POWER_GOOD
D0_1_2
V_REG_EN
L900
2.2uH 1.2A
1
2
SB918 0R
R901 1M
R923
1M
N.M.
R924
1M
0
0
FB1
470Ohms@100MHz
1
2
C904
10uF
C901
22uF
R930
1M
C902
10uF
0
0
0
0
FB2
470Ohms@100MHz
1
2
SB915
0R N.M.
U900
ST1PS02CQTR
AUX
1
VIN
2
SW
3
GND
4
VOUT
5
VOUT2
6
PGOOD
7
CL
8
EN
12
D0
9
D1
10
D2
11
SB913 0R
C903
10uF
SB916
0R N.M.
L901
2.2uH 1.2A
1
2
SB941
0R
R921
0R
D0_1_2
D0_1_2
V_REG_EN
V_REG_EN



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