Datasheet NJG1104KB2 Datasheet (JRC)

NJG1104KB2

800MHz BAND LNA GaAs MMIC

NJG1104KB2

Note: The portion above shows orientation mark printed on the package surface.

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GENERAL DESCRIPTION nPACKAGE OUTLINE

NJG1104KB2 is a variable gain low noise amplifier (LNA).

At 800MHz band, noise figure is 1.2dB, variable gain range
is 21dB and input 3rd order intercept point is +6dBm. These
characteristics are very suitable for CDMA cellular phone
application.

The variable attenuators placed in front of LNA realize wide
range of input power with low distortion.

Very small and thin FLP6-B2 package is adopted.

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FEATURES

lLow voltage operation +2.8V typ.

lLow current consumption 6.0mA typ.
lHigh gain 15dB typ. @f=865MHz
lLow noise figure 1.2dB typ. @f=865MHz
lVariable gain control 21dB typ. @f=865MHz,V
lHigh input IP3 +6dBm typ. @f=865.0+865.1MHz, Pin=-30dBm
lHigh output IP3 +21dBm typ. @f=865.0+865.1MHz, Pin=-30dBm

lUltra small & ultra thin package FLP6-B2 (Mount Size: 2.1x2.0x0.75mm)

=0.2 to 1.7V

CONT

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PIN CONFIGURATION

KB2 Type

(Top View)

4

3

Pin Connection

1.SOURCE

AMP

5

2

2.GND

3.RFout

4.GND

ATT

6

5.VCONT

6.RFin

- 1 -

NJG1104KB2

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ABSOLUTE MAXIMUM RATINGS

( Ta=25°C, Zs=Zl=50Ω )

PARAMETER SYMBOL CONDITIONS RATINGS UNITS
Drain Voltage V
Gain Control Voltage V

CONT

Input Power P
Power Dissipation P
Operating Temperature T
Storage Temperature T

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ELECTRICAL CHARACTERISTICS

DD

opr
stg

in
D

VDD=2.8V +20 dBm

(VDD =2.8V, V

=1.7V, f=865MHz, Ta=25°C, Zs=Zl=50Ω )

CONT

6.0 V

4.0 V

450 mW

-40~+85 °C

-55~+125 °C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Frequency freq 830 865 900 MHz
Drain Voltage V
Gain Control Voltage V
Operating Current I
Gain Control Terminal

Current

I

DD

CONT

DD

CONT

No RF Signal - 6.0 7.5 mA
No RF Signal - 1.0 5.0 uA

2.7 2.8 5.5 V

0.2 1.7 3.0 V

Small Signal Gain Gain 13.0 15.0 17.0 dB
Gain Flatness G
Gain Control Range G

flat

CONT

f=830~900MHz
V

=0.2V, 1.7V 18.5 20.5 22.5 dB

CONT

- 0.5 1.0 dB

Noise Figure NF - 1.20 1.40 dB
Pout at 1dB Gain

Compression point
Output 3rd Order

Intercept Point
Input 3rd Order

Intercept Point 1
Input 3rd Order

Intercept Point 2
RF Input Port VSWR VSWR

RF Output Port VSWR VSWR

P

-1dB

OIP3

IIP3-1

IIP3-2

f=865.0+865.1MHz
Pin=-30dBm

f=865.0+865.1MHz
Pin=-30dBm

f=865.0+865.1MHz
Pin=-10dBm
V

=0.2V

CONT

i

o

- +8.0 - dBm

+19.0 +21.0 - dBm

+4.0 +6.0 - dBm

+21.0 +26.0 - dBm

- 1.5 2.0 -

- 1.5 2.0 -

- 2 -

NJG1104KB2

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TERMINAL INFORMATION

Pin Function Description

This terminal is internally connected to FET’s source of LNA. Please connect self-

1 SOURCE

2, 4 GND

3 RFout

bias resistor (R1) and bypass capacitor (C3) through source inductor (L5). NF and
IIP3 are tunable by C3 and L5.

Ground (0V) terminal. Ground plane should be placed as close to the ground
terminals. .

RF output and drain voltage supplies terminal. External matching circuit is
required.

5 VCONT

6 RFin

Gain control voltage (V

RF input terminal. External matching circuit and DC blocking capacitor are required.

) supplies terminal.

CONT

NJG1104KB2

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TYPICAL CHARACTERISTICS

NF,Gain vs. frequency

4.0

3.5

3.0

2.5

2.0

NF (dB)

1.5

1.0

0.5

0.0
700 750 800 850 900 950 1000

Gain

NF

(VDD=2.8V,V

frequency (MHz)

=1.7V,IDD=6mA)

CONT

Pout,Gain vs. Pin

15

10

5

0

Pout (dBm)

-5

-10

(VDD=2.8V,V

P-1dB=7.7dBm

Gain

Pout

=1.7V,f=865MHz)

CONT

18

17

16

15

14

13

12

11

10

20

15

10

Gain (dB)

Gain (dB)

NF,Gain vs. frequency

20

18

16

NF (dB)

14

12

10

700 750 800 850 900 950 1000

(VDD=2.8V,V

NF

Gain

frequency (MHz)

=0.2V,IDD=6mA)

CONT

Pout,Gain vs. Pin

(VDD=2.8V,V

10

0

Gain

-10

Pout (dBm)

-20

Pout

-30

=0.2V,f=865MHz)

CONT

0

-2

-4

-6

-8

-10

0

-5

-10

-15

-20

Gain (dB)

Gain (dB)

-15

-40 -30 -20 -10 0 10

Pin (dBm)

5

-40

-30 -20 -10 0 10
Pin (dBm)

-25

- 4 -

NJG1104KB2

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TYPICAL CHARACTERISTICS

NF,Gain vs. VCONT

30

25

20

15

NF (dB)

10

5

0

0.0 0.5 1.0 1.5 2.0

(VDD=2.8V, f=865MHz)

Gain

NF

VCONT (V)

NF,Gain vs. IDD

2.0

1.5

(VDD=2.8V,V

=1.7V,f=865MHz)

CONT

Gain

20

15

10

5

0

-5

-10

Gain (dB)

16

15

OIP3,IIP3 vs. VCONT

(VDD=2.8V,IDD=6mA,f=865+865.1MHz,Pin=-30dBm)

25

20

OIP3 (dBm)

15

10

0.0 0.5 1.0 1.5 2.0
VCONT (V)

OIP3,IIP3 vs. IDD

(VDD=2.8V,V

25

20

=1.7V,f=865+865.1MHz,Pin=-30dBm)

CONT

OIP3

20

OIP3

15

IIP3 (dBm)

10

IIP3

5

15

10

1.0

NF (dB)

0.5

0.0
4 5 6 7 8 9 10

IDD (mA)

Rbias vs. IDD

(VDD=2.8V, V

200

180

160

140

120

Rbias (ohm)

100

80

NF

CONT

=1.7V)

14

13

12

Gain (dB)

OIP3 (dBm)

15

10

4 5 6 7 8 9 10

Equations of OIP3 and IIP3

=3OIP

2

Gain-3OIP=3IIP
VCONT=1.7V@ Pin=-30dBm
VCONT=0.2V@ Pin=-10dBm

IIP3

IIP3 (dBm)

5

0

IDD (mA)

3IM-Pout×3

60

3 4 5 6 7 8 9 10 11

IDD (mA)

NJG1104KB2

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TYPICAL CHARACTERISTICS

NF,Gain vs. VDD

(V

=1.7V,f=865MHz)

2.0

1.8

1.6

NF (dB)

1.4

1.2

1.0

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Gain

NF

CONT

VDD (V)

IDD vs. VDD

7.0

6.8

OIP3,IIP3 vs. VDD

(V

=1.7V,f=865+865.1MHz,Pin=-30dBm)

OIP3

IIP3

CONT

15

10

IIp3 (dBm)

5

0

VDD (V)

20

18

16

14

12

10

Gain (dB)

25

20

OIP3 (dBm)

15

10

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

OIP3,IIP3 vs. frequency

(V

=1.7V)

CONT

(VDD=2.8V,V

23

22

=1.7V,f1=freq,f2=freq+100kHz,Pin=-30dBm)

CONT

OIP3

10

9

6.6

IDD (mA)

6.4

6.2

6.0

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VDD

IDD vs. Ta

(VDD=2.8V,V

10

9

8

IDD (mA)

7

6

CONT

=1.7V)

21

20

OIP3 (dBm)

19

18

820 840 860 880 900 920

IIP3

frequency (MHz)

Equations of OIP3 and IIP3

=3OIP

3IM-Pout×3

2

Gain-3OIP=3IIP
VCONT=1.7V@ Pin=-30dBm
VCONT=0.2V@ Pin=-10dBm

8

7

6

5

IIP3 (dBm)

5

-50 0 50 100

- 6 -

Ta (oC)

NJG1104KB2

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TYPICAL CHARACTERISTICS

Gain vs. Ta (Variable VCONT)

20

15

10

Gain (dB)

-5

-10

Delta Gain(max)=1.3dB@Ta=-40to80oC,VCONT=1.3V

VCONT=1.4V

VCONT=1.3V
VCONT=1.2V

VCONT=1.1V

5

0

VCONT=0.6V
VCONT=0.4V
VCONT=0.2V

-50 0 50 100

(VDD=2.8V,freq=865MHz)

VCONT=1.0V
VCONT=0.9V

VCONT=0.8V

VCONT=0V

Ta (oC)

NF,Gain vs. Ta

5

4

3

NF (dB)

2

1

0

-50 0 50 100

(VDD=2.8V,V

=1.7V,freq=865MHz)

CONT

Gain

NF

Ta (oC)

OIP3,IIP3 vs. Ta

(VDD=2.8V,V

30

28

26

=1.7V,freq=865+865.1MHz,Pin=-30dBm)

CONT

IIP3

20

18

16

14

12

10

10

8

6

Gain (dB)

NF,Gain vs. Ta

20

18

16

NF (dB)

14

12

10

-50 0 50 100

(VDD=2.8V,V

=0.2V,freq=865MHz)

CONT

NF

Gain

Ta (oC)

OIP3,IIP3 vs. Ta

(VDD=2.8V,V

26

24

22

=0.2V,freq=865+865.1MHz,Pin=-10dBm)

CONT

IIP3

0

-2

-4

-6

-8

-10

28

26

24

Gain (dB)

24

OIP3 (dBm)

22

OIP3

20

-50 0 50 100
Ta (oC)

4

2

0

IIP3 (dBm)

20

OIP3 (dBm)

18

16

-50 0 50 100

OIP3

Ta (oC)

22

20

18

IIP3 (dBm)

NJG1104KB2

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TYPICAL CHARACTERISTICS

S11,S21,S12,S22 vs. frequency

(VDD=2.8V,V

20

10

0

-10

-20

S11,S22,S21 (dB)

-30

-40
0 500 1000 1500 2000

S21

S22

S11

S12

frequency (MHz)

=1.7V,IDD=6mA)

CONT

S11,S22 vs. frequency

0

(VDD=2.8V,V

-5

=1.7V,IDD=6mA)

CONT

30

20

10

0

-10

-20

-30

S12 (dB)

S11,S21,S12,S22 vs. frequency

(VDD=2.8V,V

0

-5

-10

S11,S22,S21 (dB)

-15

-20
0 500 1000 1500 2000

S11

S12

frequency (MHz)

=0.2V,IDD=6mA)

CONT

S22

S21

S11,S22 vs. frequency

0

(VDD=2.8V,V

-5

=0.2V,IDD=6mA)

CONT

20

10

0

-10

-20

-30

-40

-50

-60

S12 (dB)

-10

S11,S22 (dB)

-15

S11

-20
0 5 10 15 20

S22

frequency (GHz)

S21,S12 vs. frequency

20

S21

10

0

-10

S21 (dB)

-20

-30
0 5 10 15 20

(VDD=2.8V,V

S12

frequency (GHz)

=1.7V,IDD=6mA)

CONT

20

10

0

-10

-20

-30

S12 (dB)

-10

S11,S22 (dB)

-15

-20
0 5 10 15 20

S22

frequency (GHz)

S11

S21,S12 vs. frequency

0

S21

-10

-20

-30

-40

S21 (dB)

-50

-60

-70
0 5 10 15 20

(VDD=2.8V,V

frequency (GHz)

S12

=0.2V,IDD=6mA)

CONT

10

0

-10

-20

-30

-40

-50

-60

S12 (dB)

- 8 -

NJG1104KB2

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TYPICAL CHARACTERISTICS

Scattering Parameter Table at Maximum Gain

VDD=2.8V, V

Freq

mag

(MHz)

100 0.990 -3.7 2.893 -162.9 0.011 94.9 0.795 -9.3
200 0.983 -7.0 3.258 171.6 0.008 56.3 0.725 -7.2
300 0.967 -9.9 3.125 154.6 0.011 85.4 0.744 -5.8
400 0.946 -12.5 2.910 141.2 0.014 84.2 0.770 -6.8
500 0.927 -14.8 2.648 130.2 0.020 87.7 0.792 -8.8
600 0.909 -16.8 2.407 120.6 0.025 87.5 0.819 -11.5
700 0.896 -18.5 2.182 112.6 0.029 84.5 0.835 -14.5
800 0.884 -19.9 1.975 105.2 0.034 81.0 0.849 -17.6

900 0.876 -21.3 1.790 98.9 0.039 78.6 0.864 -20.8
1000 0.871 -22.7 1.624 92.9 0.044 77.3 0.874 -24.0
1100 0.867 -24.1 1.480 87.4 0.048 73.1 0.880 -27.2
1200 0.864 -25.3 1.349 82.2 0.054 71.6 0.884 -30.5
1300 0.860 -26.8 1.234 77.4 0.059 68.3 0.891 -33.8
1400 0.861 -28.1 1.129 72.7 0.063 66.2 0.897 -37.1
1500 0.862 -29.7 1.029 68.2 0.068 63.8 0.903 -40.4
1600 0.862 -31.3 0.942 63.8 0.072 61.0 0.907 -43.8
1700 0.863 -33.0 0.860 59.4 0.078 57.7 0.912 -47.4
1800 0.867 -34.7 0.783 55.2 0.083 55.4 0.916 -50.6
1900 0.869 -36.5 0.713 51.1 0.087 52.4 0.920 -54.0
2000 0.874 -38.4 0.650 47.3 0.091 50.5 0.921 -57.6

(units)

=1.7V, IDD=6.1mA, Zo=50Ω

CONT

S11 S21 S12 S22

ang

(deg)

mag

(units)

ang

(deg)

mag

(units)

ang

(deg)

mag

(units)

ang

(deg)

Reference Plane

GND

4

V

CONT

Network Analyzer
Port1

Note

=1.7V

1000p

Reference Plane

VDD (=2.8V) is supplied through “BIAS CONNECT (PORT2)” of Network Analyzer.

Vcont

5

RFin

6

AMP

ATT

3

RFout
GND

2

SOURCE

1

5.6n

1000p

120

Network Analyzer
Port2

NJG1104KB2

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TYPICAL CHARACTERISTICS

Scattering Parameter Table at Minimum Gain

VDD=2.8V, V

Freq

mag

(MHz)

100 0.771 -62.4 2.226 171.8 0.002 -94.5 0.784 -9.3

200 0.573 -99.1 1.803 141.7 0.004 25.2 0.728 -6.5

300 0.480 -121.8 1.405 128.1 0.005 37.2 0.744 -4.9

400 0.430 -138.2 1.151 119.5 0.003 70.3 0.774 -5.6

500 0.405 -150.1 0.975 113.2 0.007 67.3 0.801 -7.5

600 0.391 -159.8 0.849 107.8 0.007 67.3 0.829 -10.2

700 0.381 -167.4 0.749 103.2 0.009 76.9 0.850 -13.2

800 0.373 -174.5 0.666 99.0 0.010 70.2 0.867 -16.4

900 0.369 179.3 0.597 95.3 0.013 75.7 0.884 -19.8
1000 0.366 173.4 0.538 91.7 0.014 73.3 0.897 -23.1
1100 0.365 168.5 0.489 88.4 0.015 74.7 0.905 -26.4
1200 0.365 163.1 0.443 84.9 0.017 73.9 0.910 -29.8
1300 0.367 158.7 0.406 81.9 0.019 70.8 0.918 -33.2
1400 0.369 154.2 0.371 78.8 0.020 68.7 0.923 -36.7
1500 0.372 150.2 0.338 76.0 0.021 65.2 0.930 -40.0
1600 0.374 146.3 0.310 73.1 0.023 63.8 0.932 -43.4
1700 0.378 142.6 0.283 70.6 0.024 64.2 0.938 -47.0
1800 0.384 139.1 0.257 67.8 0.026 63.6 0.942 -50.4
1900 0.388 136.5 0.232 64.7 0.027 60.2 0.944 -53.9
2000 0.388 133.1 0.211 62.7 0.029 59.5 0.947 -57.6

(units)

=0.2V, IDD=6.1mA, Zo=50Ω

CONT

S11 S21 S12 S22

ang

(deg)

mag

(units)

ang

(deg)

mag

(units)

ang

(deg)

mag

(units)

ang

(deg)

Reference Plane

GND

4

V

CONT

Network Analyzer
Port1

Note

=0.2V

1000p

Reference Plane

VDD (=2.8V) is supplied through “BIAS CONNECT (PORT2)” of Network Analyzer.

Vcont

5

RFin

6

AM P

ATT

3

RFout
GND

2

SOURCE

1

5.6n

1000p

Network Analyzer
Port2

120

- 10 -

NJG1104KB2

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CONTVDD

RECOMMENDED CIRCUIT

V

CONT

=0.2V to 1.7V

RF Input

L1

n

RECOMMENDED PCB DESIGN

C1

V

L2

C5

GND

4

Vcont

5

RFin

6

C4

AMP

ATT

RFout

3

GND

2

SOURCE

1

L3

L5

C2

RF Output

L4

VDD=2.8V

C4

R1

C3

L4

L3

C3

C2

L5

R1

C5

RF Input

Parts List (f=830~900MHz)

PARTS ID Constant Comment

L1 22nH TAIYO-YUDEN HK1005 Series
L2 22nH TAIYO-YUDEN HK1608 Series
L3 22nH TAIYO-YUDEN HK1005 Series
L4 15nH TAIYO-YUDEN HK1005 Series
L5 5.6nH TAIYO-YUDEN HK1005 Series

C1, C4, C5 1000pF MURATA GRM36 Series

L1

L2

C1

RF Output

PCB: FR4 t=0.2mm
MICROSTRIP LINE WIDTH=0.4mm(Zo=50Ω)
PCB SIZE: 20.0x20.0mm

PRECAUTIONS

1) The inductor of 1608 size is
recommended for NF
characteristics.

2) The value of C3 is selected
to get lower gain and higher
output IP3.

C2 6pF MURATA GRM36 Series
C3 100pF MURATA GRM36 Series
R1

120Ω

-

NJG1104KB2

n

• To waste this product, please obey the relating law of your country.

with care to avoid these damages .

[CAUTION]

PACKAGE OUTLINE (FLP6-B2)

2.0±0.1

6 5 4

1 2 3

0.65 0.65

+0.1

0.2-0.05

0.75±0.05

0.20.2

2.1±0.1

1.7±0.1

+0.1

0.15-0.05

Lead material : Copper
Lead surface finish: Solder plating

Molding material : Epoxy resin

0.1 0.1

UNIT : mm
Weight : 6.5mg

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.

This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle

- 12 -

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.