NRF24L01 13 nRF24L01 schematic for RF layouts with single ended 50? RF output. Application Circuit

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NRF24L01 circuit
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NRF24L01 circuit
PRODUCT SPECIFICATION
NRF24L01 Single Chip 2.4 GHz Radio Transceiver
APPLICATION EXAMPLE
NRF24L01 with single ended matching network crystal, bias Resistor and decoupling
C7
33nF
0402
R2
22K
0402
VDD
CE
CSN
SCK
MOSI
MISO
1
2
3
4
5
VSS
DVDD
VDD
VSS
IREF
C9
10nF
0402
C8
1nF
0402
U1
20
19
18
17
16
CE
CSN
SCK
MOSI
MISO
NRF24L01
VDD
VSS
ANT2
ANT1
VDD_PA
15
14
13
12
11
L3
L1
8.2nH
0402
3.9nH
0402
C5
50ohm, RF I/O
1.5pF
0402
C6
1.0pF
0402
IRQ
VDD
VSS
XC2
XC1
L2
NRF24L01
2.7nH
0402
IRQ
6
7
8
9
10
X1
C3
2.2nF
0402
C4
4.7pF
0402
16 MHz
R1
1M
C1
22pF
0402
C2
22pF
0402
Figure 13 NRF24L01 schematic for RF layouts with single ended 50Ω RF output.
Part
24
22pF
24
22pF
2.2nF
4.7pF
1.5pF
1,0pF
33nF
1nF
10nF
8,2nH
2.7nH
3,9nH
1M
22K
NRF24L01
16MHz
Designator
C1
C2
C3
C4
C5
C6
C7
C8
C9
L1
L2
L3
R1
R2
U1
X1
Footprint
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
QFN20 4x4
Description
NPO, +/- 2%, 50V
NPO, +/- 2%, 50V
X7R, +/- 10%, 50V
NPO, +/- 0.25 pF, 50V
NPO, +/- 0.1 pF, 50V
NPO, +/- 0.1 pF, 50V
X7R, +/- 10%, 50V
X7R, +/- 10%, 50V
X7R, +/- 10%, 50V
chip Inductor +/- 5%
chip Inductor +/- 5%
chip Inductor +/- 5%
+/-10%
+/- 1 %
+/-60ppm, C
L
=12pF
24
Table 20 Recommended components (BOM) in NRF24L01 with Antenna matching
network
24
C1 and C2 must have values that match the Crystals load capacitance, C
L
.
- Vestre Rosten 81, N-7075 Tiller, Norway
-
Phone +4772898900
-
Fax +4772898989
September 2006
Nordic Semiconductor ASA
Revision: 1.0
Page 37 of 43