JRC NJG1705V Datasheet
NJG1705V
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1.5/1.9GHz BAND FRONT-END GaAs MMIC
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NJG1705V
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GENERAL DESCRIPTION
NJG1705V is a front-end GaAs MMIC including
a LNA, local amplifier and a Mixer, designed mainly
for 1.5 and 1.9GHz band cellular phone.
NJG1705V exhibits low noise of 16dB at 1.5GHz
and 2.1dB at 1.9GHz at low total current
consumption of 9.5mA.
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FEATURES
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Low voltage operation +2.7V typ.
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Low current consumption 9.5mA typ.
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High conversion gain 23.5dB typ. @fRF=1489MHz, PRF=-50dBm, fLO=1619MHz, PLO=-10dBm
20.5dB typ. @fRF=1900MHz, PRF=-50dBm, fLO=1660MHz, PLO=-10dBm
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Low noise figure 1.6dB typ. @fRF=1489MHz, fLO=1619MHz, PLO=-10dBm, fIF=130MHz
2.2dB typ. @fRF=1900MHz, fLO=1660MHz, PLO=-10dBm, fIF=240MHz
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High IIP3 -15.5dBm typ. @fRF=1489.0+1489.1MHzfLO=1619MHz, PLO=-10dBm
-10dBm typ. @fRF=1900.0+1900.1MHzfLO=1660MHz, PLO=-10dBm
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Package SSOP10
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PIN CONFIGURATION
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PACKAGE OUTLINE
V Type
(Top View)
1
2
3
4
5
9
8
7
6
Pin Connection
1.LNAIN
2.LNACAP
3.GND
4.IFOUT
5.VLO
6.LOIN
7.GND
8.MIXIN
9.GND
10.LNAOUT
NJG1705V
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ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL CONDITIONS RATINGS UNITS
LNA Voltage V
MIXER Voltage V
Local Amplifier Voltage V
InputPower1 P
InputPower2 P
Power Dissipation P
Operating Temperature T
Storage Temperature T
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ELECTRICAL CHARACTERISTICS 1 (1.5GHz band)
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=1489MHz, fLO=1619MHz,fIF=130MHz,
PRF=-50dBm, PLO=-10dBm, Zs=Zl=50Ω, Application Circuit,
1.5GHz band, fLO=1619MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Frequency freq 1470 1489 1520 MHz
LNA Voltage V
MIXER Voltage V
Local Amplifier Voltage V
LNA current I
MIXER current I
Local Amplifier current I
Total current I
LNA
MIX
LO
LNA
MIX
LO
AL
RF, LO=OFF - 3.5 5.0 mA
RF, LO=OFF - 5.0 6.6 mA
RF, LO=OFF - 1.0 2.0 mA
RF, LO=OFF - 9.5 13.6 mA
2.5 2.7 4.5 V
2.5 2.7 4.5 V
2.5 2.7 4.5 V
Conversion Gain Gc 21.0 23.5 - dB
Gain Flatness G
flat
fRF=1470-1520MHz - 1.0 1.5 dB
Noise Figure NF - 1.6 1.9 dB
1dB Gain Compression
Output Power
P-1dB -4.0 -2.0 - dBm
Input 3’rd Intercept Point IIP3 fRF=1489.0+1489.1MHz -18.0 -15.5 - dBm
Image Suppression Level IMR - -11.0 -8.0 dBc
RF IN VSWR VSWR
i
- 2.0 3.0
NJG1705V
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ELECTRICAL CHARACTERISTICS (1.5GHz band LNA)
COMMON CONDITIONS: Ta=+25°C, V
=2.7V, V
LNA
MIX=VLO
=0V, fRF=1489MHz, Zs=Zl=50Ω,
fLO=1619MHz, Application Circuit, 1.5GHz band, fLO=1619MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small Signal Gain Gain - 15.0 - dB
Noise Figure NF - 1.2 - dB
Input 3’rd Intercept Point IIP3 fRF=1489.0+1489.1MHz - -4.0 - dBm
RF IN VSWR VSWRi - 2.0 RF OUT VSWR VSWRo - 2.0 -
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ELECTRICAL CHARACTERISTICS (1.5GHz band MIXER)
COMMON CONDITIONS: Ta=+25°C, V
LNA
=0V, V
MIX=VLO
=2.7V, fRF=1489MHz, fLO=1619MHz,
PRF=-30dBm, PLO=-10dBm, Zs=Zl=50Ω, Application Circuit,
1.5GHz band, fLO=1619MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Gain G
c
- 8.0 - dB
Noise Figure NF - 8.0 - dB
Input 3’rd Intercept Point IIP3 fRF=1489.0+1489.1MHz - -1.0 - dBm
NJG1705V
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ELECTRICAL CHARACTERISTICS 2 (1.9GHz band)
COMMON CONDITIONS: Ta=+25°C, V
LNA=VMIX=VLO
=2.7V, fRF=1900MHz, fLO=1660MHz, fIF=240MHz,
PRF=-50dBm, PLO=-10dBm, Zs=Zl=50Ω, Application Circuit,
1.9GHz band, fLO=1660MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Frequency freq 1890 1900 1920 MHz
LNA Voltage V
MIXER Voltage V
Local Amplifier Voltage V
LNA Current *1 I
MIXER Current *2 I
Local Amplifier Current *3 I
Total Current I
LNA
MIX
LO
LNA
MIX
LO
AL
RF, LO=OFF - 3.5 5.0 mA
RF, LO=OFF - 5.0 6.6 mA
RF, LO=OFF - 1.0 2.0 mA
RF, LO=OFF - 9.5 13.6 mA
2.5 2.7 4.5 V
2.5 2.7 4.5 V
2.5 2.7 4.5 V
Conversion Gain Gc 18.5 20.5 - dB
Gain Flatness G
flat
fRF=1890-1920MHz - 1.3 1.8 dB
Noise Figure NF - 2.2 2.5 dB
1dB Gain Output Compression
Output Power
P-1dB -3.0 -1.0 - dBm
Input 3’rd Intercept Point IIP3 fRF=1900.0+1900.1MHz -14.0 -10.0 - dBm
Image Suppression Level IMR - -6.5 -4.5 dBc
RF IN VSWR VSWR
I
- 2.0 3.0
NJG1705V
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ELECTRICAL CHARACTERISTICS (1.9GHz band LNA)
COMMON CONDITIONS: Ta=+25°C, V
=2.7V, V
LNA
MIX=VLO
=0V, fRF=1900MHz, Zs=Zl=50Ω,
Application Circuit, 1.9GHz band, fLO=1660MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small signal Gain Gain - 13.0 - dB
Noise Figure NF - 1.4 - dB
Input 3’rd Intercept Point IIP3 fRF=1900.0+1900.1MHz - -3.0 - dBm
RF IN VSWR VSWRi - 2.0 RF OUT VSWR VSWRo - 2.0 -
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ELECTRICAL CHARACTERISTICS (1.9GHz band MIXER)
COMMON CONDITIONS: Ta=+25°C, V
LNA
=0V, V
MIX=VLO
=2.7V, fRF=1900MHz, fLO=1660MHz,
PRF=-30dBm, PLO=-10dBm, Zs=Zl=50Ω, fLO=1660MHz,
Application Circuit, 1.9GHz band, fLO=1660MHz
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Gain G
c
- 8.0 - dB
Noise Figure NF - 8.0 - dB
Input 3’rd Intercept Point IIP3 fRF=1900.0+1900.1MHz - 4.0 - dBm
NJG1705V
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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
CAUTION
1) Ground terminal (No.3, 7, 9) should be connected to the ground plane as short as possible.
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 is terminal 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.
NJG1705V
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3IF-IM3
3IF-IM3
Conversion Gain , Noise Figure
TYPICAL CHARACTERISTICS (LNA+MIXER 1.5GHz band fLO=1619MHz)
vs. RF Frequency
(V
26
24
22
20
Conversion Gain (dB)
18
16
1.44 1.46 1.48 1.5 1.52 1.54 1.56
LNA=VMIX=VLO
RF Frequency (GHz)
Condition
fIF=130MHz
PRF=-50dBm
PLO=-10dBm
V
LNA=VMIX=VLO
Upper LOCAL
=2.7V)
Gc
NF
=2.7V
Conversion Gain , Noise Figure vs. LO Power
3.5
3
2.5
2
Noise Figure (dB)
1.5
1
Conversion Gain (dB)
(V
LNA=VMIX=VLO
24
23
22
21
20
19
18
17
16
-40 -30 -20 -10 0 10
=2.7V,fRF=1489MHz,fLO=1619MHz)
Gc
NF
LO Power (dBm)
Condition
fIF=130MHz
fRF=1489MHz,PRF=-50dBm
fLO=1619MHz
V
LNA=VMIX=VLO
=2.7V
5
4.5
4
3.5
3
2.5
Noise Figure (dB)
2
1.5
1
Output-IP3 , Input-IP3 vs. LO Power
(V
LNA=VMIX=VLO
10
5
0
OIP3 (dBm)
-5
-10
-40 -35 -30 -25 -20 -15 -10 -5 0
Condition
fIF=130MHz
f
=1489.0MHz,PRF=-35dBm
RF1
f
=1489.1MHz
RF2
fLO=1619MHz
V
LNA=VMIX=VLO
=2.7V,fRF=1469+1489.1MHz,fLO=1619MHz)
OIP3
IIP3
LO Power (dBm)
=2.7V
OIP3=
IIP3=
@PRF=-35dBm
2
-G
2
-10
-15
-20
IIP3 (dBm)
-25
-30
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NJG1705V
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TYPICAL CHARACTERISTICS (LNA+MIXER 1.5GHz band fLO=1619MHz)
RF IN IMPEDANCE
Condition
V
=2.7V
LNA
V
MIX=VLO
=2.7V
LOCAL IN IMPEDANCE
Condition
V
=2.7V
LNA
V
MIX=VLO
=2.7V
IF OUT IMPEDANCE
Condition
V
=2.7V
LNA
V
MIX=VLO
=2.7V
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