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AN4630 Datasheet(PDF) 8 Page - STMicroelectronics

Part # AN4630
Description  PCB design guidelines for the BlueNRG and BlueNRG-MS devices
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4630 Datasheet(HTML) 8 Page - STMicroelectronics

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Reference schematics
AN4630
Figure 6: CSP34 package, integrated balun, DC-DC converter ON
Table 1: BlueNRG application board external componenents description
Components
Description
C1, C6, C12
Decoupling capacitors for battery voltage
C2, C3
DC-DC converter filtering capacitors
C4, C5
Decoupling capacitor for on-chip 1.2 V voltage
regulator
C19, C20
Decoupling capacitor for on-chip 1.2 V voltage
regulator
C9, C10, C11, C14, C15, C16,
C21
RF discrete balun filter/matching capacitors
C7, C8
XTAL1 capacitors
C17, C18
XTAL2 capacitors
L1
DC-DC converter inductor
L2, L3, L4
RF discrete balun filter/matching inductors
L5
XTAL1 filtering inductor
L6
XTAL2 filtering inductor
R1
IRQ pull-down resistor
XTAL1
Low-frequency crystal
XTAL2
High-frequency crystal
U1
High-frequency crystal BlueNRG QFN/CSP device
U2
Micro controller
GAMSEC2014129-1112
C6
C7
C19
U3
BALF-NRG-01D3
U2
Application MCU
XTAL1
L1
C20
C3
C8
XTAL2
L5
L6
R1
C2
C5
C17
C12
C1
C4
C18
U1
BlueNRG_WLCSP
1.7 V to 3.6V Power Supply
B1
1
B2
2
A2
3
A1
4
SPI_MOSI
SPI_CLK
SPI_IRQ
SPI_CS
SPI_MISO
SPI_MOSI
E2
SPI_CLK
E1
SPI_IRQ
D2
TEST1
D1
VBAT3
C1
TEST2
C2
TEST3
B1
TEST4
B2
VBAT1
D5
SXTAL0
E5
SXTAL1
E6
RF0
D6
RF1
C6
GND
C3
FXTAL0
B6
FXTAL1
A6
8/33
DocID027262 Rev 1



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