NJG1704V
- 1 -
800MHz BAND FRONT-END GaAs MMIC
n
GENERAL DESCRIPTION
n
PACKAGE 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.
n
FEATURES
l
Low voltage operation
+2.7V typ.
l
Low current consumption
9mA typ.
l
High conversion gain
28dB typ. @f
RF
=820MHz, P
RF
=-50dBm, f
LO
=690MHz, P
LO
=-10dBm
l
Low noise figure
1.7dB typ. @f
RF
=820MHz, f
LO
=690MHz, P
LO
=-10dBm
l
High IIP3
-14dBm typ. @f
RF
=820.0+820.1MHz, f
LO
=690MHz, P
LO
=-10dBm
l
Package
SSOP10
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PIN CONFIGURATION
Pin Connection
1.LNAIN
2.LNACAP
3.GND
4.IFOUT
5.VLO
6.LOIN
7.GND
8.MIXIN
9.GND
10.LNAOUT
1
2
3
4
5
6
7
8
9
10
NJG1704V
V TYPE
(Top View)
NJG1704V
- 2 -
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ABSOLLUTE MAXIMUM RATINGS
(T
a
=+25C, Z
s
=Z
l
=50
)
PARAMETER
SYMBOL
CONDITIONS
RATINGS
UNITS
LNA Voltage
V
LNA
5.0
V
MIXER Voltage
V
MIX
5.0
V
LOCAL Amplifier Voltage
V
LO
5.0
V
Input Power 1
P
LNAIN
V
LNA
=V
MIX
=V
LO
=2.7V
+15
dBm
Input Power 2
P
LOIN
V
LNA
=V
MIX
=V
LO
=2.7V
+10
dBm
Power Dissipation
P
D
320
mW
Operating Temperature
T
opr
-40~+85
C
Storage Temperature
T
stg
-55~+125
C
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ELECTRICAL CHARACTERISTICS
COMMON CONDITIONS: T
a
=+25C, V
LNA
=V
MIX
=V
LO
=2.7V, f
RF
=820MHz, f
LO
=690MHz, P
RF
=-50dBm
P
LO
=-10dBm, Z
s
=Z
l
=50
, Application Circuit, f
LO
=690MHz
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Frequency
Freq
800
820
900
MHz
LNA Voltage
V
LNA
2.5
2.7
4.5
V
MIXER Voltage
V
MIX
2.5
2.7
4.5
V
LOCAL Amplifier Voltage
V
LO
2.5
2.7
4.5
V
LNA Current
I
LNA
P
RF
, P
LO
=OFF
-
3.0
4.5
mA
MIXER Current
I
MIX
P
RF
, P
LO
=OFF
-
5.0
6.7
mA
LOCAL Amplifier Current
I
LO
P
RF
, P
LO
=OFF
-
1.0
2.0
mA
Total Current
I
AL
P
RF
, P
LO
=OFF
-
9.0
13.2
mA
Conversion Gain
G
c
25.0
28.0
-
dB
Gain Flatness
G
flat
30MHz bandwidth in
f
RF
=810~885MHz
-
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
f
RF
=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
NJG1704V
- 3 -
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ELECTRICAL CHARACTERISTICS (LNA)
COMMON CONDITIONS: T
a
=+25C, V
LNA
=2.7V, V
MIX
=V
LO
=0V, f
RF
=820MHz, Z
s
=Z
l
=50
Application Circuit, f
LO
=690MHz
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Small Signal Gain
Gain
-
16.0
-
dB
Noise Figure
NF
-
1.4
-
dB
Input 3'rd Intercept Point
IIP3
f
RF
=820.0+820.1MHz
-
-3.0
-
dBm
RF IN VSWR
VSWR
i
-
2.0
-
RF OUT VSWR
VSWR
o
-
2.0
-
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ELECTRICAL CHARACTERISTICS (MIXER)
COMMON CONDITIONS: T
a
=+25C, V
LNA
=0V, V
MIX
=V
LO
=2.7V, f
RF
=820MHz, f
LO
=690MHz,
P
RF
=-30dBm, P
LO
=-10dBm, Z
s
=Z
l
=50
Application Circuit, f
LO
=690MHz
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Conversion Gain
G
c
-
12.0
-
dB
Noise Figure
NF
-
5.0
-
dB
Input 3'rd Intercept Point
IIP3
f
RF
=820.0+820.1MHz
-
+2.0
-
dBm
NJG1704V
- 4 -
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TERMINAL INFORMATION
No.
SYMBOL
DESCRIPTIONS
1
LNAIN
RF input terminal of LNA. The RF signal is input through external matching
circuit.
2
LNACAP
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.
3
GND
Ground terminal(0V)
4
IFOUT
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.
5
VLO
Power supply terminal for local amplifier. Please connect R1 and L10 to this
terminal shown in the application circuit as close as possible.
6
LOIN
Local signal input terminal of local amplifier. The local signal input to Local
Amplifier through external matching circuit.
7
GND
Ground terminal(0V)
8
MIXIN
RF signal input terminal of Mixer. The RF signal from LNA is sent to Mixer
through matching circuit.
9
GND
Ground terminal(0V)
10
LNAOUT
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.
NJG1704V
- 5 -
20
22
24
26
28
30
1.5
1.6
1.7
1.8
1.9
2
780
800
820
840
860
880
900
920
Conversion Gain , Noise Figure
vs. RF Frequency
Conversion Gain (dB)
Noise Figure (dB)
RF Frequency (MHz)
Gc
NF
-5
0
5
10
15
-24
-20
-16
-12
-8
-40
-30
-20
-10
0
10
Output-IP3 , Input-IP3
vs. LO Power
OIP3 (dBm)
IIP3 (dBm)
LO Power (dBm)
IIP3
OIP3
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TYPICAL CHARACTERISTICS (LNA+MIXER, f
LO
=690MHz)
Condition
f
IF
=130MHz
P
RF
=-46dBm
P
LO
=-10dBm
V
LNA
=V
MIX
=V
LO
=2.7V
Condition
f
IF
=130MHz
f
RF
=820MHz, P
RF
=-46dBm
f
LO
=690MHz
V
LNA
=V
MIX
=V
LO
=2.7V
IIP3=
3IF-IM3
2
-G
c
@P
RF
=-42dBm
Condition
f
IF
=130MHz
f
RF1
=820.0MHz, P
RF
=-42dBm
f
RF2
=820.1MHz
f
LO
=690MHz
V
LNA
=V
MIX
=V
LO
=2.7V
OIP3=
3IF-IM3
2
16
18
20
22
24
26
28
30
1
1.5
2
2.5
3
3.5
4
4.5
-40
-30
-20
-10
0
10
Conversion Gain , Noise Figure
vs. LO Power
Conversion Gain (dB)
Noise Figure (dB)
LO Power (dBm)
Gc
NF
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