DEMO-ATF-5X1P8 Datasheet, PDF (10/23 Pages) Broadcom Corporation. – High Linearity Enhancement Mode[ Pseudomorphic HEMT in 2x2 mm2 LPCC[3] Package

ATF-521P8 Typical Scattering Parameters, V_DS = 4.5V, I_DS = 200 mA
Freq.    S₁₁
S₂₁
GHz
Mag. Ang.
dB Mag. Ang.
dB
S₁₂
Mag. Ang.
0.1
0.823 -89.9
34.4 52.21 135.6 -37.9 0.013 46.2
0.2
0.873 -128.7
30.5 33.39 115.7 -35.6 0.017 32.0
0.3
0.879 -145.5
27.6 23.90 106.3 -34.9 0.018 27.0
0.4
0.885 -155.1
25.2 18.25 100.5 -34.7 0.018 25.8
0.5
0.883 -161.1
23.6 15.12 96.6 -34.4 0.019 24.8
0.6
0.897 -165.9
22.1 12.66 92.9 -34.1 0.020 24.2
0.7
0.895 -169.5
20.8 10.95 90.5 -33.7 0.021 24.2
0.8
0.894 -171.9
19.6 9.59 88.0 -33.6 0.021 25.3
0.9
0.900 -174.7
18.7 8.64 86.2 -33.1 0.022 26.2
1
0.893 -176.6
17.8 7.78 83.7 -33.1 0.022 27.6
1.5
0.894 175.3
14.3 5.17 75.7 -32.1 0.025 32.6
2
0.889 168.5
12.0 4.00 67.8 -30.8 0.029 33.6
2.5
0.888 162.6
10.2 3.22 61.3 -29.8 0.032 35.2
3
0.892 157.0
8.6 2.69 54.5 -28.6 0.037 35.6
4
0.884 146.5
6.0 2.00 40.7 -26.8 0.046 34.4
5
0.891 137.0
4.0 1.59 28.3 -25.2 0.055 30.5
6
0.889 127.9
2.3 1.30 16.4 -24.0 0.063 26.4
7
0.902 119.6
0.9 1.11 4.8 -22.8 0.072 21.0
8
0.881 105.6 -0.9 0.90 -8.8 -21.3 0.086 13.3
9
0.891 96.0 -1.7 0.83 -20.1 -20.2 0.098 5.6
10
0.876 83.9 -2.9 0.72 -32.1 -19.3 0.108 -3.2
11
0.885 73.1 -3.6 0.66 -43.7 -18.5 0.119 -12.1
12
0.885 60.9 -4.8 0.57 -54.1 -18.0 0.126 -21.6
13
0.893 53.0 -6.3 0.48 -66.2 -17.7 0.131 -29.9
14
0.889 42.2 -7.2 0.44 -74.0 -17.2 0.138 -36.7
15
0.894 34.3 -7.8 0.41 -80.6 -16.9 0.143 -44.1
16
0.840 25.0 -8.4 0.38 -83.4 -16.2 0.154 -54.3
17
0.719 9.1 -10.0 0.32 -90.1 -15.4 0.171 -64.8
18
0.794 -8.1 -12.2 0.25 -102.3 -16.7 0.147 -84.1
S₂₂
MSG/MAG
Mag. Ang. dB
0.388 -113.0 36.0
0.478 -143.2 32.9
0.507 -156.0 31.2
0.518 -163.1 30.1
0.519 -166.7 29.0
0.525 -169.6 28.0
0.526 -172.2 27.2
0.528 -174.0 26.6
0.528 -175.6 25.9
0.529 -177.7 25.5
0.527 177.2 23.2
0.516 172.1 21.4
0.514 168.1 18.4
0.517 164.0 16.7
0.526 156.0 13.5
0.548 148.3 11.9
0.568 141.0 10.1
0.584 133.5 9.4
0.580 124.9 6.7
0.594 115.8 6.4
0.600 105.3 4.6
0.622 95.0
4.2
0.641 84.1
3.0
0.663 73.1
2.1
0.698 65.7
1.2
0.732 57.4
1.0
0.750 51.0 -0.8
0.815 44.5 -3.2
0.655 40.4 -5.9
Typical Noise Parameters, V_DS = 4.5V, I_DS = 200 mA
Freq
F_min
Γ_opt
Γ_opt
R_n
G_a
GHz
dB
Mag.
Ang.
dB
0.5
0.60
0.30
130.00 2.8
20.2
1.0
0.72
0.35
150.00 2.6
18.4
2.0
0.96
0.47 -175.47 1.9
16.5
3.0
1.11
0.57 -162.03 2.1
13.8
4.0
1.44
0.62 -150.00 4.5
11.2
5.0
1.75
0.69 -136.20 10.0
9.8
6.0
1.99
0.74 -127.35 17.0
8.7
7.0
2.12
0.80 -116.83 28.5
7.5
8.0
2.36
0.69 -108.38 35.6
5.7
40.0
30.0
MSG
20.0
10.0
0.0
-10.0
MAG
S₂₁
-20.0
0
5
10
15
20
FREQUENCY (GHz)
Figure 41. MSG/MAG and |S₂₁|² vs.
Frequency at 4.5V, 200 mA.
Notes:
1. F_min values at 2 GHz and higher are based on measurements while the F_mins below 2 GHz have been extrapolated. The F_min 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 F_min 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.
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