DEMO-ATF-5X143 Datasheet, PDF (9/16 Pages) Broadcom Corporation. – Low Noise Enhancement Mode Pseudomorphic HEMT in a Surface Mount Plastic Package

ATF-54143 Typical Scattering Parameters, V_DS = 4V, I_DS = 60 mA
Freq.
S₁₁
GHz
Mag. Ang.
S₂₁
dB
Mag. Ang.
S₁₂
Mag. Ang.
S₂₂
Mag. Ang.
MSG/MAG
dB
0.1
0.99 -18.6
0.5
0.81 -80.2
0.9
0.71 -117.3
1.0
0.69 -123.8
1.5
0.64 -149.2
1.9
0.62 -164.5
2.0
0.61 -167.8
2.5
0.60 176.6
3.0
0.60 162.6
4.0
0.62 137.4
5.0
0.65 115.9
6.0
0.68 97.6
7.0
0.70 80.6
8.0
0.72 62.6
9.0
0.76 45.4
10.0
0.83 28.5
11.0
0.86 14.1
12.0
0.88 -0.4
13.0
0.90 -14.9
14.0
0.87 -31.4
15.0
0.88 -46.0
16.0
0.88 -54.8
17.0
0.87 -62.8
18.0
0.92 -73.7
28.88
26.11
23.01
22.33
19.49
17.75
17.36
15.66
14.23
11.91
10.00
8.36
7.01
5.76
4.60
3.28
1.87
0.69
-0.39
-1.72
-3.38
-5.17
-6.73
-7.93
27.80
20.22
14.15
13.07
9.43
7.72
7.38
6.07
5.15
3.94
3.16
2.62
2.24
1.94
1.70
1.46
1.24
1.08
0.96
0.82
0.68
0.55
0.46
0.40
167.8
128.3
106.4
102.4
86.2
75.7
73.3
61.9
51.1
30.9
11.7
-6.6
-24.3
-42.3
-60.5
-79.6
-97.0
-112.8
-130.2
-148.8
-166.0
179.8
168.4
154.3
0.01 80.1
0.58 -12.6
34.44
0.03 52.4
0.42 -52.3
28.29
0.04 41.7
0.31 -73.3
25.49
0.04 40.2
0.29 -76.9
25.14
0.05 36.1
0.22 -89.4
22.76
0.06 34.0
0.18 -95.5
21.09
0.06 33.5
0.18 -97.0
20.90
0.07 30.7
0.14 -104.0 19.38
0.07 27.3
0.11 -113.4 18.67
0.09 18.7
0.07 -154.7 15.46
0.10 9.0
0.09
152.5
13.20
0.11 -1.4
0.12
127.9
11.73
0.12 -12.9
0.15
106.9
10.47
0.13 -24.7
0.17 78.9
9.31
0.14 -36.1
0.23 56.8
8.69
0.15 -51.8
0.32 42.1
9.88
0.15 -65.4
0.41 29.4
9.17
0.15 -78.0
0.47 16.0
8.57
0.15 -92.2
0.51 -1.1
8.06
0.15
-107.3
0.58
-17.6
4.90
0.14
-121.2
0.63
-32.6
3.86
0.13
-132.2
0.69
-43.7
2.65
0.12
-142.3
0.72
-54.2
1.33
0.11
-155.6
0.75
-67.2
2.26
Typical Noise Parameters, V_DS = 4V, I_DS = 60 mA
Freq
F_min
Γ_opt
Γ_opt
R_n/50
GHz
dB
Mag. Ang.
0.5
0.17
0.33
34.30 0.03
0.9
0.25
0.31
60.30 0.04
1.0
0.27
0.31
68.10 0.04
1.9
0.45
0.27
115.00 0.04
2.0
0.49
0.27
119.80 0.04
2.4
0.56
0.26
143.50 0.04
3.0
0.63
0.28
176.80 0.04
3.9
0.73
0.35
-145.90 0.05
5.0
0.96
0.47
-116.20 0.11
5.8
1.20
0.52
-98.80 0.19
6.0
1.23
0.54
-96.90 0.21
7.0
1.33
0.60
-77.40 0.38
8.0
1.66
0.63
-56.20 0.64
9.0
1.71
0.71
-38.60 0.99
10.0
1.85
0.82
-21.30 1.51
G_a
dB
28.02
24.12
23.43
18.72
18.35
16.71
15.58
13.62
12.25
11.23
11.02
9.94
8.81
8.22
8.12
40
35
30
25
MSG
20
15
MAG
MSG
10
5
S₂₁
MAG
0
-5
10
-15
0
5
10
15
20
FREQUENCY (GHz)
Figure 22. MSG/MAG and |S₂₁|² vs.
Frequency at 4V, 60 mA.
Notes:
1. Fmin values at 2 GHz and higher are based on measurements while the Fmins below 2 GHz have been extrapolated. 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. S and noise parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. The input reference plane is at the end of
the gate lead. The output reference plane is at the end of the drain lead. The parameters include the effect of four plated through via holes con-
necting source landing pads on top of the test carrier to the microstrip ground plane on the bottom side of the carrier. Two 0.020 inch diameter
via holes are placed within 0.010 inch from each source lead contact point, one via on each side of that point.
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