NRF401-IC ETC, NRF401-IC Datasheet - Page 13

• Manufacturer Part Number: NRF401-IC
• Description: 433mhz Single Chip RF Transceiver
• Manufacturer: ETC

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