njg1128hb6 New Japan Radio Co.,Ltd, njg1128hb6 Datasheet - Page 4

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

NJG1128HB6
!TERMINAL INFOMATION
!TRUTH TABLE
- 4 -
No.
CAUTION
1
2
3
4
5
6
7
8
1) Ground terminal (No.2, 4, 6, 8) should be connected to the ground plane as close as possible for
excellent RF performance, because distance to GND makes parasitic inductance.
SYMBOL
RFOUT
VCTL
VINV
RFIN
GND
GND
GND
GND
V
H
CTL
L
Supply voltage terminal for internal logic circuit (inverter).
Ground terminal.
RF signal comes out from this terminal, and goes through an external matching circuit
connected to this. Inductor L3 as shown in the application circuit is a part of an external
matching circuit, and also provide DC power to LNA. Capacitor C3 as shown in the
application circuit is a bypass capacitor.
Ground terminal.
RF input terminal. The RF signal is input through external matching circuit connected to
this terminal. A DC blocking capacitor is not required.
Ground terminal.
Control port. A logic control signal is required to select High or Low gain mode of LNA.
This terminal is set to more than +1.8V of logical high level for High gain mode of LNA,
and set to –0.3~+0.3V of logical low level for Low gain mode.
Ground terminal.
Gain Mode
High
Low
“H”=V
CTL
(H), “L”=V
bypass
pass
LNA
CTL
DESCRIPTION
(L)