NRF2401AG Nordic VLSI, NRF2401AG Datasheet - Page 36

• Manufacturer Part Number: NRF2401AG
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF2401A Single Chip 2.4 GHz Radio Transceiver
APPLICATION EXAMPLE
nRF2401A with single ended matching network
xxx
1)
2)
> 2.7 GHz
Nordic Semiconductor ASA
Revision: 1.1
Component
nRF2401A can operate at several crystal frequencies, please refer to page 31.
Wire wound inductors are recommended, other can be used if their self-resonant frequency (SFR) is
Table 22 Recommended components (BOM) in nRF2401A with antenna matching
PWR_UP
DOUT2
DATA
CLK2
CLK1
DR2
VDD
DR1
CE
CS
C10
C11
U1
X1
C1
C2
C3
C4
C5
C6
C7
R1
R2
L1
L2
L3
L4
C8
C9
Figure 21 nRF2401A schematic for RF layouts with single end 50Ω antenna
Capacitor ceramic, 50V, NPO
Capacitor ceramic, 50V, NPO
Capacitor ceramic, 50V, NPO
Capacitor ceramic, 50V, X7R
Capacitor ceramic, 50V, X7R
Capacitor ceramic, 50V, X7R
Capacitor ceramic, 50V, X7R
Resistor
Resistor
nRF2401A transceiver
Crystal, CL = 12pF,
ESR < 100 ohm
Ceramic capacitor, 50V, NP0
Ceramic capacitor, 50V, NP0
Ceramic capacitor, 50V, NP0
Ceramic capacitor, 50V, NP0
Inductor, wire wound
Inductor, wire wound
Inductor, wire wound
Inductor, wire wound
- Vestre Rosten 81, N-7075 Tiller, Norway
C6
10nF
Description
1
2
3
4
5
6
C5
1nF
U1
nRF2401
QFN24/5X5
CE
DR2
CLK2
DOUT2
CS
DR1
C7
33nF
nRF2401
xxx
2)
2)
2)
2)
Page 36 of 40
xxx
R2
22K
VDD_PA
VSS_PA
network
C1
22pF
ANT2
ANT1
VDD
VSS
R1
1M
X1
16 MHz
18
17
16
15
14
13
QFN24 / 5x5
4.0x2.5x0.8
LxWxH =
Size
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
C2
22pF
C4
2.2nF
-
C3
4.7pF
Phone [phone]
L1
3.3nH
nRF2401A
C9
1.0pF
C8
1.0pF
Value
16
4.7
2.2
1.0
1.0
3.3
5.6
5.6
1.0
1.0
2.2
4.7
22
22
22
10
10
33
L3
5.6nH
L2
10nH
1)
L4
5.6nH
Toleranc
+/- 30 ppm
± 0.25 pF
± 0.25 pF
C10
2.2pF
± 0.1 pF
± 0.1 pF
-
±10%
±10%
±10%
±10%
± 5%
± 5%
± 5%
± 5%
±5%
±5%
±5%
±1%
±1%
e
Fax [phone]
C11
4.7pF
March 2006
RF I/O
Units
MHz
MΩ
kΩ
nH
nH
nH
nH
pF
pF
pF
nF
nF
nF
nF
pF
pF
pF
pF
xxx