njg1128hb6 New Japan Radio Co.,Ltd, njg1128hb6 Datasheet - Page 14

• Manufacturer Part Number: njg1128hb6
• Description: 450mhz Band Lna Gaas Mmic
• Manufacturer: New Japan Radio Co.,Ltd

NJG1128HB6
!TEST PCB LAYOUT
- 14 -
PRECAUTIONS
[1] C1 and L1 form the input matching circuit. They should be placed close to RFIN terminal (5
[2] L2 and L3 form the output matching circuit. They should be placed close to RFOUT terminal (3
[3] R1 and C4 form the negative feedback circuit. The pattern between RFOUT terminal (3
[4] C2 is a DC-blocking capacitor.
[5] C3 is a bypass capacitor, it should be placed close to L3.
[6] Ground terminals(2
terminal (5
good performance.
RF IN
th
pin) should be designed as short as possible for good performance.
nd
, 4
th
PCB(FR-4),t=0.2mm
MICROSTRIP LINE WIDTH=0.4mm(Z
PCB SIZE : 17.0 X 17.0mm
, 6
th
and 8
V
CTL
th
pin) should be connected to ground plane as close as possible for
C1
L1
(Top View)
R1
L2
C4
C3
L3
V
V
C2
INV
DD
O
=50Ω)
RF OUT
rd
pin) and RFIN
th
pin).
rd
pin).