NJG1104KB2
n
RECOMMENDED CIRCUIT
RFout
3
GND
4
C2
L3
RF Output
L4
V
=2.8V
V
=0.2V to 1.7V
DD
Vcont
5
CONT
GND
2
AMP
ATT
C4
R1
C5
RFin
6
SOURCE
1
RF Input
L5
L2
C1
C3
L1
n
RECOMMENDED PCB DESIGN
VCONT
VDD
C4
L4
L3
RF Output
C2
C5
L2
L5
R1
RF Input
L1
C1
C3
PCB: FR4 t=0.2mm
MICROSTRIP LINE WIDTH=0.4mm(Zo=50W)
PCB SIZE: 20.0x20.0mm
Parts List (f=830~900MHz)
PARTS ID Constant
PRECAUTIONS
Comment
1) The inductor of 1608 size is
recommended for NF
characteristics.
L1
22nH
22nH
22nH
15nH
5.6nH
TAIYO-YUDEN HK1005 Series
TAIYO-YUDEN HK1608 Series
TAIYO-YUDEN HK1005 Series
TAIYO-YUDEN HK1005 Series
TAIYO-YUDEN HK1005 Series
L2
L3
2) The value of C3 is selected
to get lower gain and higher
output IP3.
L4
L5
C1, C4, C5
C2
1000pF MURATA GRM36 Series
6pF
MURATA GRM36 Series
C3
100pF
120W
MURATA GRM36 Series
-
R1
- 11 -
NJRC [ NEW JAPAN RADIO ]
