ATF-331M4 datasheet(9/14 Pages) AVAGO

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Figure 21. MSG/MAG and |S21|

2 vs.

Frequency at 4 V , 40 mA.

MSG

MAG

FREQUENCY (GHz)

020

515

-10

|S21|

ATF-331M4 Typical Scattering Parameters, VDS = 4V, IDS = 40 mA

Freq.

GHz

S11

S21

S12

S22

MSG/MAG

Mag.

Ang.

Mag.

Ang.

Mag.

Ang.

Mag.

Ang.

0.5

0.82

-89.80

22.59

13.48

128.80

-27.54

0.042

54.00

0.36

-149.40

25.06

0.8

0.78

-116.90

19.49

9.43

113.60

-25.51

0.053

47.30

0.41

-162.57

22.50

1.0

0.77

-130.00

18.68

8.59

106.60

-24.73

0.058

45.20

0.43

-167.93

21.70

1.5

0.75

-149.70

15.42

5.90

94.13

-22.97

0.071

42.93

0.46

-177.83

19.20

1.8

0.74

-158.00

14.21

5.13

88.40

-22.05

0.079

42.23

0.46

177.53

18.13

2.0

0.74

-162.20

13.70

4.84

85.10

-21.51

0.084

41.93

0.47

174.77

17.61

2.5

0.72

-169.50

11.50

3.76

77.87

-20.26

0.097

41.33

0.48

168.10

15.88

3.0

0.69

-173.80

10.20

3.24

71.53

-18.20

0.123

40.47

0.49

164.80

14.20

4.0

0.70

164.10

7.34

2.33

52.63

-17.46

0.134

30.50

0.50

140.63

11.39

5.0

0.73

150.90

5.66

1.92

40.90

-16.95

0.142

25.67

0.50

137.60

9.81

6.0

0.71

141.80

4.54

1.69

28.00

-16.42

0.151

18.43

0.51

120.43

8.14

7.0

0.73

124.70

3.52

1.50

13.40

-15.65

0.165

8.40

0.52

113.63

7.45

8.0

0.74

113.70

3.29

1.46

5.20

-15.29

0.172

4.07

0.52

112.80

7.42

9.0

0.76

98.50

3.08

1.43

-6.37

-15.29

0.172

-4.27

0.53

97.33

7.18

10.0

0.79

84.30

2.45

1.33

-20.00

-15.04

0.177

-15.27

0.53

82.40

6.94

11.0

0.86

62.60

0.59

1.07

-34.50

-15.04

0.177

-27.37

0.53

69.40

6.64

12.0

0.87

62.70

-0.26

0.97

-40.00

-14.56

0.187

-31.00

0.59

63.63

6.29

13.0

0.88

52.60

-1.08

0.88

-52.10

-15.09

0.176

-41.67

0.64

52.57

5.80

14.0

0.89

45.10

-1.66

0.83

-61.60

-15.55

0.167

-49.77

0.69

43.13

5.59

15.0

0.92

39.20

-3.49

0.67

-70.50

-15.81

0.162

-58.03

0.71

33.47

5.35

16.0

0.94

33.50

-5.16

0.55

-78.00

-18.64

0.117

-64.67

0.75

27.23

4.93

17.0

0.94

28.40

-5.30

0.54

-84.20

-17.72

0.130

-71.07

0.77

20.77

4.97

18.0

0.93

24.90

-6.29

0.49

-88.30

-17.86

0.128

-75.90

0.79

15.87

3.70

Notes:

1. The Fmin values are based on a set of 16 noise figure measurements made at 16 different impedances using an ATN NP5 test system. From these

measurements Fmin is calculated. Refer to the noise parameter measurement section for more information.

2. S and noise parameters are measured on a microstrip line made on 0.010 inch thick alumina carrier assembly. The input reference plane is at the

end of the gate pad. The output reference plane is at the end of the drain pad.

Typical Noise Parameters, VDS = 4V, IDS = 40 mA

Freq

GHz

Fmin

opt

Mag.

opt

Ang.

Rn/50

0.50

0.4

0.335

0.5

0.07

21.8

0.90

0.43

0.332

27.9

0.06

18.83

1.00

0.44

0.332

34.3

0.06

18.59

1.50

0.48

0.338

63.8

0.05

16.22

1.80

0.51

0.345

79.6

0.05

15.46

2.00

0.52

0.352

89.3

0.05

14.61

2.50

0.57

0.373

111.3

0.05

13.34

3.00

0.61

0.4

130

0.04

12.29

4.00

0.69

0.467

158.9

0.03

10.47

5.00

0.78

0.542

178.7

0.03

8.96

6.00

0.86

0.617

-167.8

0.02

8.05

7.00

0.95

0.68

-158.1

0.04

7.19

8.00

1.03

0.724

-149.3

0.06

6.41

9.00

1.12

0.738

-138.9

0.1

6.15

10.00

1.2

0.712

-124.2

0.18

5.07

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