DEMO-ATF-5X1M4E Datasheet, PDF (7/16 Pages) Broadcom Corporation. – Low Noise Enhancement Mode Pseudomorphic HEMT in a Miniature Leadless Package

ATF-541M4 Typical Scattering Parameters, V_DS = 3V, I_DS = 60 mA
Freq.    S₁₁
GHz
Mag. Ang.
dB
S₂₁
Mag. Ang.
0.1
0.99 -17.6
28.36
26.18
168.9
0.5
0.87 -74.7
26.04
20.03
133.9
0.9
0.78 -110.7
23.13
14.34
113.5
1.0
0.76 -117.6
22.42
13.22
109.4
1.5
0.72 -140.1
19.54
9.49
95.1
1.9
0.70 -152.6
17.73
7.70
86.9
2.0
0.70 -157.5
17.19
7.24
85.7
2.5
0.69 -170.4
15.45
5.92
77.9
3.0
0.69 -179.9
13.91
4.96
70.8
4.0
0.69
165.7
11.53
3.77
58.3
5.0
0.70
153.8
9.66
3.04
46.8
6.0
0.71
138.8
8.25
2.58
34.8
7.0
0.71
128.6
6.89
2.21
24.4
8.0
0.73
118.6
5.76
1.94
14.3
9.0
0.74
109.2
4.72
1.72
4.4
10.0
0.76
99.9
3.80
1.55 -5.7
11.0
0.77
89.7
3.03
1.42 -16.0
12.0
0.79
81.5
2.23
1.29 -26.3
13.0
0.80
71.8
1.45
1.18 -36.3
14.0
0.83
61.7
0.58
1.07 -47.4
15.0
0.85
52.2 -0.31
0.96 -58.1
16.0
0.86
42.1 -1.41
0.85 -67.9
17.0
0.90
33.2 -2.34
0.76 -76.8
18.0
0.90
24.3 -3.53
0.67 -84.8
S₁₂
Mag. Ang.
0.01
85.1
0.03
54.2
0.04
41.8
0.04
40.2
0.05
34.6
0.05
32.8
0.05
33.5
0.05
34.1
0.06
33.4
0.07
32.8
0.08
32.0
0.09
28.2
0.10
25.1
0.11
21.1
0.12
16.6
0.13
11.2
0.14
5.5
0.15 -1.1
0.16 -8.7
0.17 -15.6
0.17 -23.4
0.17 -31.6
0.17 -38.7
0.17 -45.8
S₂₂
Mag. Ang.
0.54 -11.3
0.41 -48.1
0.30 -70.1
0.28 -74.9
0.20 -92.5
0.17 -103.3
0.14 -108.9
0.12 -122.4
0.10 -138.7
0.10 -164.1
0.09
174.9
0.11
162.9
0.12
149.1
0.14
138.7
0.17
129.5
0.19
119.3
0.23
108.8
0.27
98.6
0.32
89.2
0.38
80.3
0.44
71.7
0.49
64.3
0.57
58.8
0.62
54.7
MSG/MAG
dB
34.18
28.25
25.54
25.19
22.78
21.88
21.61
20.73
19.17
15.26
13.21
11.80
10.30
9.42
8.46
7.86
7.21
6.73
6.11
5.98
5.54
4.75
5.73
4.51
Typical Noise Parameters, V_DS = 3V, I_DS = 60 mA
Freq
F_min
Γ_opt
Γ_opt
R_n/50
GHz
dB
Mag.
Ang.
0.5
0.12
0.37
13.2
0.05
0.9
0.16
0.34
10.9
0.06
1.0
0.19
0.21
30.8
0.04
1.9
0.45
0.22
102.9
0.05
2.0
0.46
0.21
104.2
0.05
2.4
0.57
0.23
125.2
0.05
3.0
0.62
0.30
149.0
0.04
3.9
0.80
0.35
173.1
0.04
5.0
1.02
0.43 -168.3
0.05
5.8
1.17
0.46 -155.8
0.06
6.0
1.22
0.51 -146.4
0.09
7.0
1.41
0.52 -137.0
0.11
8.0
1.49
0.54 -129.5
0.15
9.0
1.69
0.56 -115.1
0.25
10.0
1.87
0.61 -99.8
0.40
G_a
dB
27.06
22.88
22.44
19.17
18.69
17.57
16.26
14.54
12.97
11.85
10.98
10.03
9.66
8.82
8.32
40
35
MSG
30
25
20
15
MAG
10
5
|S₂₁|²
0
-5
-10
0
5
10
15
20
FREQUENCY (GHz)
Figure 17. MSG/MAG and |S₂₁|² vs.
Frequency at 3V, 60 mA.
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 a true Fmin is calculated. Refer to the noise parameter application section for more information.
2. Refer to the applications section for additional information on the test fixture used for the measurement of the s and noise parameters.