JRC NJG1704V Datasheet
NJG1704V
10
800MHz BAND FRONT-END GaAs MMIC
nGENERAL DESCRIPTION nPACKAGE OUTLINE
NJG1704V is a front-end GaAs MMIC including
a LNA, local amplifier and MIXER, designed mainly
for 800MHz band cellular phone.
NJG1704V exhibits low noise of 1.7dB at low total
current consumption of 9.0mA.
NJG1704V
nFEATURES
lLow voltage operation +2.7V typ.
lLow current consumption 9mA typ.
lHigh conversion gain 28dB typ. @fRF=820MHz, PRF=-50dBm, fLO=690MHz, PLO=-10dBm
lLow noise figure 1.7dB typ. @fRF=820MHz, fLO=690MHz, PLO=-10dBm
lHigh IIP3 -14dBm typ. @fRF=820.0+820.1MHz, fLO=690MHz, PLO=-10dBm
lPackage SSOP10
nPIN CONFIGURATION
1
2
3
4
5
V TYPE
(Top View)
Pin Connection
1.LNAIN
2.LNACAP
9
8
7
6
3.GND
4.IFOUT
5.VLO
6.LOIN
7.GND
8.MIXIN
9.GND
10.LNAOUT
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NJG1704V
n
ABSOLLUTE MAXIMUM RATINGS
PARAMETER SYMBOL CONDITIONS RATINGS UNITS
LNA Voltage V
MIXER Voltage V
LOCAL Amplifier Voltage V
Input Power 1 P
Input Power 2 P
Power Dissipation P
Operating Temperature T
Storage Temperature T
n
ELECTRICAL CHARACTERISTICS
LNA
MIX
LO
LNAIN
LOIN
D
opr
stg
V
LNA=VMIX=VLO
V
LNA=VMIX=VLO
(Ta=+25°C, Zs=Zl=50Ω)
5.0 V
5.0 V
5.0 V
=2.7V +15 dBm
=2.7V +10 dBm
320 mW
-40~+85 °C
-55~+125 °C
COMMON CONDITIONS: Ta=+25°C, V
LNA=VMIX=VLO
=2.7V, fRF=820MHz, fLO=690MHz, PRF=-50dBm
PLO=-10dBm, Zs=Zl=50Ω, Application Circuit, fLO=690MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Frequency Freq 800 820 900 MHz
LNA Voltage V
MIXER Voltage V
LOCAL Amplifier Voltage V
LNA Current I
MIXER Current I
LOCAL Amplifier Current I
Total Current I
Conversion Gain G
Gain Flatness G
LNA
MIX
LO
LNA
MIX
LO
AL
flat
PRF, PLO=OFF - 3.0 4.5 mA
PRF, PLO=OFF - 5.0 6.7 mA
PRF, PLO=OFF - 1.0 2.0 mA
PRF, PLO=OFF - 9.0 13.2 mA
c
30MHz bandwidth in
fRF=810~885MHz
2.5 2.7 4.5 V
2.5 2.7 4.5 V
2.5 2.7 4.5 V
25.0 28.0 - dB
- 1.5 - dB
Noise Figure NF - 1.7 2.0 dB
1dB Gain Compression
Output Power
P-1dB -1.0 +2.5 - dBm
Input 3rd Intercept Point IIP3 fRF=820.0+820.1MHz -19.0 -14.0 - dBm
Image Suppression Level IMR - -22.0 -18.0 dBc
RF IN VSWR VSWR
i
- 2.0 3.0
- 2 -
n
o
ELECTRICAL CHARACTERISTICS (LNA)
COMMON CONDITIONS: Ta=+25°C, V
=2.7V, V
LNA
MIX=VLO
Application Circuit, fLO=690MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small Signal Gain Gain
Noise Figure NF
Input 3’rd Intercept Point IIP3 fRF=820.0+820.1MHz
RF IN VSWR VSWR
i
RF OUT VSWR VSWR
n
ELECTRICAL CHARACTERISTICS (MIXER)
NJG1704V
=0V, fRF=820MHz, Zs=Zl=50Ω
-
-
-
-
-
16.0
1.4
-3.0
2.0
2.0
-
-
-
dB
dB
dBm
-
-
COMMON CONDITIONS: Ta=+25°C, V
LNA
=0V, V
MIX=VLO
=2.7V, fRF=820MHz, fLO=690MHz,
PRF=-30dBm, PLO=-10dBm, Zs=Zl=50Ω Application Circuit, fLO=690MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Gain G
c
Noise Figure NF
Input 3’rd Intercept Point IIP3 fRF=820.0+820.1MHz
-
-
-
12.0
5.0
+2.0
-
-
-
dBm
dB
dB
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NJG1704V
n
TERMINAL INFORMATION
No. SYMBOL DESCRIPTIONS
1 LNAIN
2 LNACAP
3 GND Ground terminal(0V)
4 IFOUT
5 VLO
6 LOIN
7 GND Ground terminal(0V)
8 MIXIN
9 GND Ground terminal(0V)
10 LNAOUT
RF input terminal of LNA. The RF signal is input through external matching
circuit.
Terminal for the bypass capacitor of LNA. The bypass capacitor C1 shown in
application circuit, should be connected to this terminal as close as possible.
IF signal output terminal. The IF signal is output though external matching
circuit’s connected to this terminal. Please connect inductance L8 and power
supply as application circuit since it is also the terminal of Mixer power supply.
Power supply terminal for local amplifier. Please connect R1 and L10 to this
terminal shown in the application circuit as close as possible.
Local signal input terminal of local amplifier. The local signal input to Local
Amplifier through external matching circuit.
RF signal input terminal of Mixer. The RF signal from LNA is sent to Mixer
through matching circuit.
Signal output terminal of LNA. The RF signal from LNA is output through external
matching circuit connected to this terminal. Please connect inductance L4 and
power supply shown in application circuit, since it is also the terminal of LNA
power supply.
CAUTION
1) Ground terminal (No.3, 7, 9) should be connected to the ground plane as short as
possible.
- 4 -
n
3IF-IM3
3IF-IM3
TYPICAL CHARACTERISTICS (LNA+MIXER, fLO=690MHz)
NJG1704V
Conversion Gain , Noise Figure
vs. RF Frequency
30
28
26
Gc
NF
24
Conversion Gain (dB)
22
20
780 800 820 840 860 880 900 920
RF Frequency (MHz)
Condition
fIF=130MHz
PRF=-46dBm
PLO=-10dBm
V
LNA=VMIX=VLO
=2.7V
Output-IP3 , Input-IP3
vs. LO Power
15
2
1.9
1.8
1.7
Noise Figure (dB)
1.6
1.5
-8
Conversion Gain , Noise Figure
vs. LO Power
30
28
26
24
22
20
Conversion Gain (dB)
18
16
-40 -30 -20 -10 0 10
Gc
LO Power (dBm)
Condition
fIF=130MHz
fRF=820MHz, PRF=-46dBm
fLO=690MHz
V
LNA=VMIX=VLO
=2.7V
NF
4.5
4
3.5
3
2.5
2
Noise Figure (dB)
1.5
1
OIP3
10
IIP3
5
OIP3 (dBm)
0
-5
-40 -30 -20 -10 0 10
LO Power (dBm)
Condition
fIF=130MHz
f
=820.0MHz, PRF=-42dBm
RF1
f
=820.1MHz
RF2
fLO=690MHz
V
LNA=VMIX=VLO
=2.7V
OIP3=
IIP3=
2
@PRF=-42dBm
-12
-16
IIP3 (dBm)
-20
-24
2
-G
c
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