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NRF51422-QFAB-R7 Datasheet(PDF) 81 Page - Nordic Semiconductor

Part # NRF51422-QFAB-R7
Description  Multiprotocol ANT™/Bluetooth® low energy System on Chip
PDF  115 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF51422-QFAB-R7 Datasheet(HTML) 81 Page - Nordic Semiconductor

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Page 81
nRF51422 Product Specification v3.1
11.3.2
QFAA QFN48 schematic with low voltage mode setup
Figure 23 QFAA QFN48 with low voltage mode setup
Note: For PCB reference layouts, see the Reference Layout section on the Downloads tab for the
different chip variants on www.nordicsemi.com.
C1
12pF
C2
12pF
X1
16MHz
C9
1.0nF
C8
100nF
C10
47nF
C11
100nF
VCC_1V8
VCC_1V8
GND
VCC_1V8
C7
100nF
VCC_1V8
P0.07
P0.30
P0.17
P0.18
P0.19
P0.20
P0.00
P0.01
P0.02
P0.03
P0.04
P0.06
P0.05
C3
2.2nF
C4
1.0pF
C5
2.2pF
C6
1.5pF
C14
12pF
C13
12pF
X2
32.768kHz
Optional
VDD
1
VDD
12
VDD_PA
30
ANT1
31
ANT2
32
VSS
33
VSS
34
AVDD
35
AVDD
36
nRF51x22
DCC
2
P0.30
3
P0.00
4
P0.01
5
P0.02
6
P0.03
7
P0.04
8
P0.05
9
P0.06
10
P0.07
11
P0.17
25
P0.18
26
P0.19
27
P0.20
28
DEC2
29
U1
nRF51x22-QFAA
L1
4.7nH
L2
10nH
L3
3.3nH



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