NRF2401A Datasheet, PDF (34/38 Pages) List of Unclassifed Manufacturers – Single chip 2.4 GHz Transceiver

PRODUCT SPECIFICATION
nRF2401A Single Chip 2.4 GHz Radio Transceiver
APPLICATION EXAMPLE
nRF2401A with single ended matching network
VDD
C6
C5
10nF
1nF
xxx
R2
22K
PWR_UP
CE
DR2
xxx
CLK2
DOUT2
CS
DR1
CLK1
DATA
1
2
3
4
5
6
CE
DR2
CLK2
DOUT2
CS
DR1
nRF2401
VSS
VDD
VSS_PA
ANT2
ANT1
VDD_PA
18
17
16
15
14
13
U1
nRF2401
QFN24/5X5
X1
C4
2.2nF
C3
4.7pF
C9
1.0pF
L1
3.3nH
L3
5.6nH
C8
1.0pF
L2
10nH
L4
5.6nH
C10
2.2pF
C11
4.7pF
RF I/O xxx
C7
16 MHz
33nF
R1
1M
C1
22pF
C2
22pF
xxx
Figure 20 nRF2401A schematic for RF layouts with single end 50Ω antenna
Component
Description
C1
Capacitor ceramic, 50V, NPO
C2
Capacitor ceramic, 50V, NPO
C3
Capacitor ceramic, 50V, NPO
C4
Capacitor ceramic, 50V, X7R
C5
Capacitor ceramic, 50V, X7R
C6
Capacitor ceramic, 50V, X7R
C7
Capacitor ceramic, 50V, X7R
R1
Resistor
R2
Resistor
U1
nRF2401A transceiver
X1
Crystal, CL = 12pF,
ESR < 100 ohm
L1
Inductor, wire wound ²⁾
L2
Inductor, wire wound ²⁾
L3
Inductor, wire wound ²⁾
L4
Inductor, wire wound ²⁾
C8
Ceramic capacitor, 50V, NP0
C9
Ceramic capacitor, 50V, NP0
C10
Ceramic capacitor, 50V, NP0
C11
Ceramic capacitor, 50V, NP0
Size
0603
0603
0603
0603
0603
0603
0603
0603
0603
QFN24 / 5x5
LxWxH =
4.0x2.5x0.8
0603
0603
0603
0603
0603
0603
0603
0603
Value
22
22
4.7
2.2
1.0
10
33
1.0
22
nRF2401A
16¹⁾
3.3
10
5.6
5.6
1.0
1.0
2.2
4.7
Toleranc
e
±5%
±5%
±5%
±10%
±10%
±10%
±10%
±1%
±1%
+/- 30 ppm
± 5%
± 5%
± 5%
± 5%
± 0.1 pF
± 0.1 pF
± 0.25 pF
± 0.25 pF
Units
pF
pF
pF
nF
nF
nF
nF
MΩ
kΩ
MHz
nH
nH
nH
nH
pF
pF
pF
pF
Table 22 Recommended components (BOM) in nRF2401A with antenna matching
network
1) _{nRF2401A can operate at several crystal frequencies, please refer to page 31.}
2) _{Wire wound inductors are recommended, other can be used if their self-resonant frequency (SFR) is}
> 2.7 GHz
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Revision: 1.0
Page 34 of 38
December 2004