NJG1142KA1
WIDE BAND LOW NOISE AMPLIFIER GaAs MMIC
GENERAL DESCRIPTION The NJG1142KA1 is a wide band low noise amplifier GaAs MMIC designed for mobile TV application. And this amplifier can be tuned to wide frequency (170~1680MHz). The NJG1142KA1 has a LNA pass-through function to select high gain mode or low gain mode by low control voltage operation. The NJG1142KA1 features low current consumption, high linearity. An ultra-small and ultra-thin package of FLP6-A1 is adopted. FEATURES Wide operating frequency range 170MHz~1680MHz Low voltage operation 2.8V typ. [High gain mode] Low current consumption 6mA typ. High gain +14.0dB typ. Low noise figure 1.5dB typ. High P-0.1dB Compression 0dBm typ. High input IP3 +2.0dBm typ. [Low gain mode] Low current consumption 11 μA typ. Gain (Low loss) -1.0dB typ. High P-0.1dB Compression +17dBm typ. High input IP3 +22.0dBm typ. External components count Small package size Lead -free and halogen-free PIN CONFIGURATION (Top View) PIN CONNECTION 1. VCTL 2. GND 3. RFOUT 4. GND 5. GND 6. RFIN TRUTH TABLE
6
RFIN
PACKAGE OUTLINE
NJG1142KA1
3 pcs. (capacitor: 2pcs, inductor: 1pc) FLP6-A1 (package size: 1.6mm x 1.6mm x 0.55mm typ.)
4
GND
3
RFOUT
5
GND
Bias circuit
2
GND
Logic circuit
1
VCTL
“H” = VCTL(H) “L” = VCTL(L)
VCTL H L
LNA Mode High Gain Mode Low Gain Mode
1Pin INDEX
NOTE: The information on this datasheet is subject to change without notice
Ver.2010-05-21
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NJG1142KA1
ABSOLUTE MAXIMUM RATINGS Ta=+25°C, Zs=Zl=50 ohm
PARAMETER Supply voltage Control voltage Input power Power dissipation Operating temperature Storage temperature SYMBOL CONDITIONS RATINGS UNITS
VDD VCTL PIN
PD
5.0 5.0 VDD=2.8V
4-layer FR4 PCB with through-hole (74.2mmx74.2mm), Tj=150°C
V V dBm
mW
+15
580
Topr Tstg
-40~+85 -55~+150
°C °C
ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS General conditions: VDD=2.8V, Ta=+25°C, Zs=Zl=50 ohm, with application circuit
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating voltage
Control voltage (High) Control voltage (Low)
VDD VCTL(H) VCTL(L) IDD1 IDD2 ICTL RF OFF, VCTL=1.8V RF OFF, VCTL=0V RF OFF, VCTL=1.8V
2.3 1.3 0.0 -
2.8 1.8 0.0 6.0 11.0 6.0
3.6 3.6 0.5 9.5 25.0 10.0
V V V mA μA μA
Operating current1 Operating current2
Control current
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NJG1142KA1
ELECTRICAL CHARACTERISTICS RF CHARACTERISTICS1 (High Gain Mode)
Conditions: VDD=2.8V, VCTL=1.8V, fRF =170~900MHz, Ta=+25°C, Zs=Zl=50ohm, with application circuit
PARAMETERS Frequency Small signal gain1 Noise figure1 Input power 1dB gain compression1 Input 3rd order intercept point1 Isolation1 RF IN VSWR1 RF OUT VSWR1
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
fRF Gain1
NF1
P-1dB(IN)1
170 Exclude PCB, connector losses*1 Exclude PCB & connector losses*2 11.0 -5.0 f1=fRF, f2=fRF+100kHz, PIN=-26dBm Exclude PCB & connector losses*1 -3.0 -
620 14.0 1.5 0.0 +2.0 -19 1.5 1.5
1680 18.0 1.9 2.3 2.2
MHz dB dB dBm dBm dB -
IIP3_1
ISL1
VSWRi1 VSWRo1
ELECTRICAL CHARACTERISTICS RF CHARACTERISTICS2 (Low Gain Mode)
Conditions: VDD=2.8V, VCTL=0V, fRF=170~900MHz, Ta=+25°C, Zs=Zl=50ohm, with application circuit
PARAMETERS Frequency Small signal gain2 Input power at 1dB gain compression2 Input 3rd order intercept point2 RF IN VSWR2 RF OUT VSWR2
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
fRF Gain2
P-1dB(IN)2
170
Exclude PCB & connector losses*1
620 -1.0 +17.0 +22.0 1.5 1.5
1680 2.0 2.0
MHz dB dBm dBm -
-2.5 +14.0
IIP3_2 VSWRi2 VSWRo2
f1=fRF, f2=fRF+100kHz, PIN=-8dBm
+17.0 -
*1 Input & output PCB and connector losses: 0.035dB(at 170MHz), 0.088dB(620MHz), 0.120dB(at 900MHz), 0.206dB(at 1680MHz) *2 Input PCB and connector losses: 0.018dB(170MHz), 0.044dB(620MHz), 0.060dB(900MHz), 0.103dB(at 1680MHz)
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NJG1142KA1
TERMINAL INFORMATION No. 1 SYMBOL VCTL DESCRIPTION Control voltage supply terminal.
2
GND
Ground terminal. These terminals should be connected to the ground plane as close as possible for excellent RF performance. RF output terminal. This terminal is also the power supply terminal of the LNA. please use inductor (L1) to connect power supply. Ground terminal. These terminals should be connected to the ground plane as close as possible for excellent RF performance.。 Ground terminal. These terminals should be connected to the ground plane as close as possible for excellent RF performance. RF input terminal. This IC is integrated an input DC blocking capacitor.
3
RFOUT
4
GND
5
GND
6
RFIN
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (High Gain Mode) (Condition :Ta=+25℃ , VDD=2.8V, VCTL=1.8V, Zs=Zl=50ohm, with application circuit)
Pout vs. Pin
(freq=620MHz) 20 16
Gain, IDD vs. Pin
(freq=620MHz) 50
10
14
Gain
40
Pout (dBm)
Gain (dB)
0
12
30
-10
Pout
-20
10
20
IDD
8 P-1dB(IN)=0dBm P-1dB(IN)=0dBm 0 10 6 -40 0 -30 -20 -10 0 10 10
-30
-40 -40
-30
-20
-10
Pin (dBm)
Pin (dBm)
Pout, IM3 vs. Pin
(f1=620MHz, f2=f1+100kHz) 20 4 3.5
NF, Gain vs. frequency
(freq=50~2000MHz) 16 14
0
2.5 2
10 8
-40
IM3
NF
1.5 1 0.5 6 4 2
(Exclude PCB, Connector Losses)
-60
-80 IIP3=+2.4dBm -100 -40
0 -30 -20 -10 0 10 20 0 500 1000 1500
0 2000
Pin (dBm)
frequency (MHz)
P-1dB(IN) vs. frequency
(freq=50~2000MHz) 10 20
IIP3, OIP3 vs. frequency
(f1=50~2000MHz, f2=f1+100kHz, Pin=-26dBm)
OIP3 IIP3, OIP3 (dBm) P-1dB(IN) (dBm)
5 15
0
10
-5
5
IIP3
-10 0 500 1000 1500 2000 0 0 500 1000 1500 2000
frequency (MHz)
frequency (MHz)
Gain (dB)
-20
Noise Figure (dB)
Pout, IM3 (dBm)
Pout
3
Gain
12
IDD (mA)
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NJG1142KA1
ELECTRICAL CHARACTERISTICS(High Gain Mode) (Condition :Ta=+25℃ , VCTL=1.8V, Zs=Zl=50ohm, with application circuit)
NF, Gain vs. VDD
(freq=620MHz) 4 3.5 16 14 10
P-1dB(IN) vs. VDD
(freq=620MHz)
Noise Figure (dB)
2.5 2 1.5 1 0.5
(Exclude PCB, Connector Losses)
10
Gain (dB) P-1dB(IN) (dBm)
3
Gain
12
5
NF
8 6 4 2 0
0
-5
0 1.5
2.0
2.5
3.0
3.5
4.0
4.5
-10 1.5
2.0
2.5
3.0
3.5
4.0
4.5
VDD (V)
VDD (V)
IIP3, OIP3 vs. VDD
(f1=620MHz, f2=f1+100kHz, Pin=-26dBm) 20 3
VSWR vs. VDD
(freq=620MHz)
OIP3 IIP3, OIP3 (dBm)
15 2.5
VSWR
10
2
VSWRo
5
1.5
IIP3
0 1.5 1 1.5
VSWRi
2.5 3.0 3.5 4.0 4.5 2.0 2.5 3.0 3.5 4.0 4.5
2.0
VDD (V)
VDD (V)
Isolation vs. VDD
(freq=620MHz) 0 -5
10
IDD vs. VDD
(RF OFF)
8
Isolation (dB)
-15 -20
IDD (mA)
-10
6
4
2
-25
0 1.5
-30 1.5
2.0
2.5
3.0
3.5
4.0
4.5
2.0
2.5
3.0
3.5
4.0
4.5
VDD (V)
VDD (V)
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (High Gain Mode) (Condition : VDD=2.8V, VCTL=1.8V, Zs=Zl=50ohm, with application circuit)
NF, Gain vs. Temperature
(freq=620MHz) 4 3.5 16 14 10
P-1dB(IN) vs. Tempareture
(freq=620MHz)
Noise Figure (dB)
2.5 2 1.5 1 0.5
(Exclude PCB, Connector Losses)
10 8
Gain (dB) P-1dB(IN) (dBm)
3
Gain
12
5
0
NF
6 4 2 0 100
-5
0 -40
-20
0
20
40
60
80
-10 -40
-20
0
20
40
60
80
100
Temperature (oC)
Tempareture (oC)
IIP3, OIP3 vs. Temperature
(f1=620MHz, f2=f1+100kHz, Pin=-26dBm) 20 3
VSWR vs. Temperature
(freq=620MHz)
OIP3 IIP3, OIP3 (dBm)
15 2.5
10
VSWR
2
VSWRo
1.5
5
IIP3
0 -40 1 -40
VSWRi
-20
0
20
40
60
80
100
-20
0
20
40
60
80
100
Temperature (oC)
Temperature (oC)
Isolation vs. Temperature
(freq=620MHz) 0 -5
10
IDD, ICTL vs. Temperature
(RF OFF) 25
8
IDD
20
Isolation (dB)
-10
IDD (mA)
6
15
-15 -20
4
ICTL
10
2
5
-25
0 -40 0 100
-30 -40
-20
0
20
40
60
80
100
-20
0
20
40
60
80
Temperature (oC)
Temperature (oC)
ICTL (μA)
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NJG1142KA1
ELECTRICAL CHARACTERISTICS(High Gain Mode) (Condition :Ta=+25℃ , VDD=2.8V, VCTL=1.8V, Zs=Zl=50ohm, with application circuit)
S11, S22
S21, S12
VSWRi, VSWRo
Zin, Zout
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (High Gain Mode) (Condition :Ta=+25℃ , VDD=2.8V, VCTL=1.8V, Zs=Zl=50ohm, with application circuit)
S11, S22 (50MHz~20GHz)
S21, S12 (50MHz~20GHz)
K factor vs. frequency
(freq=50MHz~20GHz) 20
-40 C -20 C
o o o
+25 C +60 C +85 C
o o
o
15
0C
K factor
10
5
0 0.0
5.0
10
15
20
frequency (GHz)
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (Low Gain Mode) (Condition :Ta=+25℃ , VDD=2.8V, VCTL=0V, Zs=Zl=50ohm, with application circuit)
Pout vs. Pin
(freq=620MHz) 20 0
Gain, IDD vs. Pin
(freq=620MHz) 50
10
-2
Gain
40
Pout (dBm)
Gain (dB)
0
-10
-20
Pout
-6
20
IDD
-8 P-1dB(IN)=+22.2dBm P-1dB(IN)=22.2dBm 30 -10 -40 0 -30 -20 -10 0 10 20 30 10
-30
-40 -40
-30
-20
-10
0
10
20
Pin (dBm)
Pin (dBm)
Pout, IM3 vs. Pin
(f1=620MHz, f2=f1+100kHz) 40 20 -2 0
Gain vs. frequency
(freq=50~2000MHz)
Pout, IM3 (dBm)
0 -20 -40 -60
Pout Gain (dB)
-4
IM3
-6
-8 -80 IIP3=+23.8dBm -100 -30 -10 -20 -10 0 10 20 30 0 500 1000 1500 2000
Pin (dBm)
frequency (MHz)
P-1dB(IN) vs. frequency
(freq=50~2000MHz) 25 30
IIP3, OIP3 vs. frequency
(f1=50~2000MHz, f2=f1+100kHz, Pin=-8dBm)
IIP3, OIP3 (dBm)
P-1dB(IN) (dBm)
20
25
IIP3 OIP3
15
20
10
15
5 0 500 1000 1500 2000
10 0 500 1000 1500 2000
frequency (MHz)
frequency (MHz)
- 10 -
IDD (μA)
-4
30
NJG1142KA1
ELECTRICAL CHARACTERISTICS (Low Gain Mode) (Condition :Ta=+25℃ , VCTL=0V, Zs=Zl=50ohm, with application circuit)
Gain vs. VDD
(freq=620MHz) 0 25
P-1dB(IN) vs. VDD
(freq=620MHz)
-1
-2
P-1dB(IN) (dBm)
2.0 2.5 3.0 3.5 4.0 4.5
20
Gain (dB)
15
-3
10
-4
-5 1.5
5 1.5
2.0
2.5
3.0
3.5
4.0
4.5
VDD (V)
VDD (V)
IIP3, OIP3 vs. VDD
(f1=620MHz, f2=f1+100kHz, Pin=-8dBm) 30 2
VSWR vs. VDD
(freq=620MHz)
IIP3, OIP3 (dBm)
25
IIP3 OIP3 VSWR
1.8
1.6
20
1.4
VSWRi
15 1.2
VSWRo
10 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VDD (V)
VDD (V)
IDD vs. VDD
(RF OFF) 30
25
20
IDD (μA)
15
10
5
0 1.5
2.0
2.5
3.0
3.5
4.0
4.5
VDD (V)
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (Low Gain Mode) (Condition : VDD=2.8V, VCTL=0V, Zs=Zl=50ohm, with application circuit)
Gain vs. Temperature
(freq=620MHz) 0 25
P-1dB(IN) vs. Tempareture
(freq=620MHz)
-1
-2
P-1dB(IN) (dBm)
-20 0 20 40 60 80 100
20
Gain (dB)
15
-3
10
-4
-5 -40
5 -40
-20
0
20
40
60
80
100
Temperature (oC)
Tempareture (oC)
IIP3, OIP3 vs. Temperature
(f1=620MHz, f2=f1+100kHz, Pin=-8dBm) 30 2
VSWR vs. Temperature
(freq=620MHz)
IIP3 IIP3, OIP3 (dBm)
25
1.8
20
VSWR
OIP3
1.6
1.4
VSWRi
15 1.2
VSWRo
10 -40 -20 0 20 40 60 80 100 1 -40 -20 0 20 40 60 80 100
Temperature (oC)
Temperature (oC)
IDD vs. Temperature
(RF OFF) 30 8 7 6 20
IDD vs. VCTL
(RF OFF)
25
15
IDD (mA)
IDD (μA)
5 4 3 2
-40 C -20 C
o o o
10
+25 C +60 C +85 C
o o
o
5
1 0 0.0
0C
0 -40
-20
0
20
40
60
80
100
0.5
1.0
1.5
2.0
2.5
3.0
Temperature (oC)
VCTL (V)
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (Low Gain Mode) (Condition :Ta=+25℃ , VDD=2.8V, VCTL=0V, Zs=Zl=50ohm,with application circuit)
S11, S22
S21, S12
VSWRi, VSWRo
Zin, Zout
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NJG1142KA1
ELECTRICAL CHARACTERISTICS (Low Gain Mode) (Condition :Ta=+25℃ , VDD=2.8V, VCTL=0V, Zs=Zl=50ohm,With application circuit)
S11, S22 (50MHz~20GHz)
S21, S12 (50MHz~20GHz)
K factor vs. frequency
(freq=50MHz~20GHz) 20
-40 C -20 C
o o o
+25 C +60 C +85 C
o o
o
15
0C
K factor
10
5
0 0.0
5.0
10
15
20
frequency (GHz)
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NJG1142KA1
APPLICATION CIRCUIT
(Top View)
C1 330pF RF OUT
4
GND
3
RFOUT
L1 270nH
VDD
5
GND
Bias circuit
2
GND
C2 1000pF VCTL
RF IN
6
RFIN
Logic circuit
1
VCTL
1Pin INDEX
NOTES: ・ L1 is an RF choke. (DC feed inductor) ・ C1 is a coupling and DC blocking capacitor at the output. ・ C2 is a bypass capacitor.
TEST PCB LAYOUT (Top View)
VDD C2 L1 RF IN C1 RF OUT
PARTS LIST Parts ID. L1 C1, C2 Notes TAIYO-YUDEN HK1005 Series MURATA GRM15 Series
VCTL
1Pin INDEX
PCB (FR-4): t=0.2mm MICROSTRIP LINE WIDTH =0.40mm (Z 0=50Ω) PCB SIZE=16.8mm x 16.8mm
PRECAUTION: ・ In order not to couple with terminal RFIN and RFOUT, please layout ground pattern under the IC.
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NJG1142KA1
MEASUREMENT BLOCK DIAGRAM
● S parameter Measurements
VDD
RF IN DUT
RF OUT
Port 1
Port 2 Network Analyzer
S parameter Measurement Block Diagram ● IIP3 Measurements
VDD
freq.1
Signal Generator
2dB Attenuator
RF IN RF OUT DUT Spectrum Analyzer
Signal Generator
Power Comb. 2dB Attenuator
3dB 3dB Attenuator Attenuator
freq.2
IF and IM3 Measurement Block Diagram for IIP3(High Gain Mode)
VDD
freq.1 Signal Generator
2dB Attenuator RF Amp.
2dB Attenuator
RF IN DUT
RF OUT Spectrum Analyzer
6dB Attenuator
10dB Attenuator
IF and IM3 Measurement Block Diagram for IIP3(Low Gain Mode)
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NJG1142KA1
● Noise Figure Measurements
Measuring instruments
NF Analyzer Noise Source : Agilent 8973A : Agilent 346A
Setting the NF analyzer
Measurement mode form Device under test Mode setup form Sideband Averages Average mode Bandwidth Loss comp Tcold : LSB :8 : Point : 4MHz : off : setting the temperature of noise source (300.0K)
NF Analyzer (Agilent 8973A)
: Amplifier
System downconverter : off
Noise Source (Agilent 346A)
I nput (50 Ω ) Noise Source Drive Output
* Noise source and NF analyzer are connected directly.
Calibration Setup
NF Analyzer (Agilent 8973A)
Noise Source (Agilent 346A) In DUT out
I nput (50 Ω ) Noise Source Drive Output
* Noise source and DUT, DUT and NF analyzer are connected directly.
Measurement Setup
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NJG1142KA1
PACKAGE OUTLINE (FLP6-A1)
1.6 0.05 0.2 0.1
0.55
0.05
1.6 0.05 0.13 0.05 0.1 0.1
0.22 0.05
0.2 0.1
0.5
0.5
1.2 0.05
Unit: mm
Cautions on using this product This product contains Gallium-Arsenide (GaAs) which is a harmful material. • Do NOT eat or put into mouth. • Do NOT dispose in fire or break up this product. • Do NOT chemically make gas or powder with this product. • To waste this product, please obe y the relating l aw of your countr y.
[ CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.
This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle with care to avoid these dama ges.
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