njg1129md7 New Japan Radio Co.,Ltd, njg1129md7 Datasheet - Page 13

• Manufacturer Part Number: njg1129md7
• Description: Uhf Band Low Noise Amplifier Gaas Mmic
• Manufacturer: New Japan Radio Co.,Ltd

PRECAUTIONS
RF IN
[1] L1-L4, C1 and C2 formed the external matching circuit.
[2] C3 is a bypass capacitor.
[3] Ground terminals should be connected with ground plane as close as possible in order to avoid
[4] Please place the ground trace between RFIN(12pin) and RFOUT(7pin) on the top PCB layout to
[5] Please place all external parts around the IC as close as possible.
APPLICATION CIRCUIT
TEST PCB LAYOUT
RF IN
VCTL
parasitic inductance.
have better isolation between input and output RF ports.
L1
22nH
VCTL
L2
27nH
L1
C1
3pF
C1
L2
12
13
14
11
1
C3
L3 C2
L4
VDD
VINV
circuit
circuit
Logic
Bias
10
2
Bypass circuit
LNA circuit
VINV
RF OUT
9
3
PCB (FR-4):
Parts List
8
4
t=0.2mm
MICROSTRIP LINE
WIDTH=0.4mm (Z
PCB SIZE=16.8mmx16.8mm
L1, L3, L4
Parts ID
7
6
5
C1~C3
L2
L3
22nH
NJG1129MD7
MURATA
LQP03T series
TAIYO-YUDEN
HK1005 series
MURATA
GRM03 series
C2
5pF
C3
1000pF
L4
15nH
0
=50 ohm)
Notes
VDD
RF OUT
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