NRF401 Datasheet, PDF (13/18 Pages) List of Unclassifed Manufacturers – 433MHz Single Chip RF Transceiver

PRODUCT SPECIFICATION
nRF401 Single Chip RF Transceiver
APPLICATION SCHEMATIC
+3V
C5
2.2uF
1206
C4
15nF
0603
C3
820pF
0603
R2
4.7K
0603
PLL FILTER
L1
22nH
0603
C6
100nF
0603
C7
1nF
0603
R1
1M
0603
C1
22pF
0603
X1
4.000 MHz
REFERENCE
C2
22pF
0603
DIN
DOUT
U1
1
2
3
4
5
6
7
8
9
10
XC1
VDD
VSS
FILT1
VCO1
VCO2
VSS
VDD
DIN
DOUT
XC2
TXEN
PWR_UP
VSS
ANT1
ANT2
VSS
VDD
CS
RF_PWR
20
19
18
17
TXEN
PWR_UP
16
15
14
13
12
11
CS
nRF401
433MHz Single Chip RF Transceiver
R3
SSOIC20
22K
0603
Figure 12. nRF401 application schematic.
C9
100pF
0603
C8
100pF
0603
J1
Loop antenna
25x15mm
Q=55
C10
3.3pF
0603
C11
5.6pF
0603
R4
18K ^aaaaaaaa
0603
Component
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
L1
R1
R2
R3
R4
X1
Description
NP0 ceramic chip capacitor, (Crystal oscillator)
NP0 ceramic chip capacitor, (Crystal oscillator)
X7R ceramic chip capacitor, (PLL loop filter)
X7R ceramic chip capacitor, (PLL loop filter)
X7R ceramic chip capacitor, (Supply decoupling)
X7R ceramic chip capacitor, (Supply decoupling)
X7R ceramic chip capacitor, (Supply decoupling)
NP0 ceramic chip capacitor, (Supply decoupling)
NP0 ceramic chip capacitor, (Supply decoupling)
NP0 ceramic chip capacitor, (Antenna tuning)
NP0 ceramic chip capacitor, (Antenna tuning)
VCO inductor, Q>45 @ 433 MHz
0.1W chip resistor, (Crystal oscillator)
0.1W chip resistor, (PLL loop filter)
0.1W chip resistor, (Transmitter power setting)
0.1W chip resistor, (Antenna Q reduction)
Crystal
Size
0603
0603
0603
0603
1206
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
0603
-
Value
22
22
820
15
2.2
100
1
100
100
3.3
5.6
22
1.0
4.7
22
18
4.000
Tolerance
±0.1
±0.25
±2%
Units
pF
pF
pF
nF
µF
nF
nF
pF
pF
pF
pF
nH
MΩ
kΩ
kΩ
kΩ
MHz
Table 9. Recommended External Components.
Nordic VLSI ASA -
Revision: 1.5
Vestre Rosten 81, N-7075 Tiller, Norway -
Page 13 of 18
Phone [phone] - Fax [phone]
May 2000