nRF2401 Nordic VLSI, nRF2401 Datasheet - Page 33

• Manufacturer Part Number: nRF2401
• Description: Single Chip 2.4GHz Radio Transceiver
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
1)
2)
> 2.7 GHz
Nordic VLSI ASA
Revision: 1.0
Wire wound inductors are recommended, other can be used if their self-resonant frequency (SFR) is
Table 22 Recommended components (BOM) in nRF2401 with antenna matching
C1
C2
C3
C4
C5
C6
C7
R1
R2
U1
X1
C8
C9
L1
L2
Figure 19 nRF2401 schematic for RF layouts with single end 50 antenna
PWR_UP
DOUT2
DATA
CLK2
CLK1
VDD
DR2
DR1
CE
CS
can operate at several crystal frequencies, please refer to page 31.
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
Crystal, CL = 12pF,
ESR < 100 ohm
-
Ceramic capacitor, 50V, NP0
Ceramic capacitor, 50V, NP0
Vestre Rosten 81, N-7075 Tiller, Norway
Inductor, wire wound
Inductor, wire wound
transceiver
C6
10nF
1
2
3
4
5
6
C5
1nF
U1
nRF2401
QFN24/5X5
CE
DR2
CLK2
DOUT2
CS
DR1
C7
33nF
2)
2)
xxx
nRF2401
Page 33 of 37
xxx
network
R2
22K
VDD_PA
VSS_PA
AVDD
C1
22pF
ANT2
ANT1
AVSS
R1
1M
QFN24 / 5x5
X1
16 MHz
4.0x2.5x0.8
LxWxH =
18
17
16
15
14
13
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
-
C2
22pF
C4
2.2nF
Phone [phone]
C3
22pF
nRF2401
L2
22nH
16
2.2
1.0
1.0
3.6
1.0
1.0
L1
3.6nH
22
22
22
10
33
22
22
1)
C9
1.0pF
C8
1.0pF
+/- 30 ppm
± 0.25 pF
± 0.25 pF
RF I/O
-
±10%
±10%
±10%
±10%
± 5%
± 5%
±5%
±5%
±5%
±1%
±1%
Fax [phone]
xxx
March 2003
MHz
M
K
nH
nH
pF
pF
pF
nF
nF
nF
nF
pF
pF