DEMO-ATF-5X1P8 Datasheet, PDF (9/23 Pages) Broadcom Corporation. – High Linearity Enhancement Mode[ Pseudomorphic HEMT in 2x2 mm2 LPCC[3] Package

ATF-521P8 Typical Scattering Parameters at 25°C, V_DS = 4.5V, I_DS = 280 mA
Freq.    S₁₁
GHz
Mag. Ang.
S₂₁
dB Mag. Ang.
S₁₂
dB Mag. Ang.
0.1
0.613 -96.9
33.2 45.79 141.7 -39.5 0.011 51.3
0.2
0.780 -131.8
30.0 31.50 121.6 -36.7 0.015 37.1
0.3
0.831 -147.2
27.3 23.26 111.0 -36.2 0.015 30.6
0.4
0.855 -156.4
25.1 18.04 104.1 -35.4 0.017 28.2
0.5
0.860 -162.0
23.5 14.98 99.7 -35.2 0.017 27.4
0.6
0.878 -166.7
22.0 12.62 95.6 -35.0 0.018 26.1
0.7
0.888 -170.2
20.8 10.95 92.8 -34.6 0.019 27.4
0.8
0.887 -172.6
19.7 9.63 90.0 -34.3 0.019 28.9
0.9
0.894 -174.5
18.7 8.65 87.9 -33.7 0.021 28.5
1.0
0.886 -177.2
17.9 7.82 85.4 -33.8 0.020 30.3
1.5
0.892 175.0
14.3 5.20 76.3 -32.8 0.023 34.6
2.0
0.883 168.7
12.1 4.01 68.4 -31.2 0.027 36.7
2.5
0.890 162.8
10.2 3.24 61.5 -30.0 0.032 36.8
3.0
0.884 157.2
8.6 2.71 54.5 -28.9 0.036 39.2
4.0
0.890 146.6
6.1 2.02 40.6 -27.0 0.045 36.1
5.0
0.893 137.0
4.1 1.60 27.6 -25.5 0.053 32.4
6.0
0.896 127.9
2.3 1.31 15.4 -24.2 0.061 28.2
7.0
0.906 119.5
0.9 1.11 3.7 -22.9 0.071 22.9
8.0
0.882 105.6 -0.8 0.92 -9.8 -21.3 0.086 14.5
9.0
0.887 96.4 -1.7 0.82 -22.2 -20.1 0.098 7.2
10.0
0.887 84.6 -2.9 0.72 -33.6 -19.3 0.109 -1.0
11.0
0.882 72.3 -3.9 0.64 -45.8 -18.5 0.119 -10.5
12.0
0.878 62.2 -5.0 0.56 -57.0 -18.0 0.126 -19.8
13.0
0.894 52.0 -6.4 0.48 -67.8 -17.8 0.130 -28.6
14.0
0.888 42.0 -7.6 0.42 -76.2 -17.3 0.137 -36.1
15.0
0.884 34.6 -8.3 0.38 -84.3 -16.6 0.147 -42.9
16.0
0.830 24.7 -9.5 0.34 -92.8 -16.1 0.156 -52.4
17.0
0.708 11.0 -9.0 0.35 -99.5 -15.4 0.169 -63.8
18.0
0.790 -12.7 -10.3 0.31 -93.1 -16.4 0.152 -82.8
S₂₂
Mag. Ang.
MSG/MAG
dB
0.317 -108.3 36.2
0.423 -138.5 33.2
0.466 -152.4 31.9
0.483 -159.9 30.3
0.488 -163.8 29.5
0.496 -167.0 28.5
0.497 -169.9 27.6
0.500 -171.7 27.0
0.501 -173.6 26.1
0.502 -175.7 25.9
0.502 178.8 23.5
0.492 173.6 20.2
0.490 169.8 18.5
0.494 165.7 16.2
0.505 157.8 13.8
0.529 150.3 11.9
0.551 142.9 10.4
0.570 135.5 9.6
0.567 127.3 6.8
0.585 117.8 6.2
0.593 107.3 5.0
0.617 97.1
3.9
0.636 86.0
2.8
0.662 74.7
2.1
0.697 67.5
0.9
0.732 58.7
0.3
0.752 51.9 -1.8
0.816 46.1 -2.2
0.660 41.2 -4.3
Typical Noise Parameters at 25°C, V_DS = 4.5V, I_DS = 280 mA
Freq
F_min
Γ_opt
Γ_opt
R_n
G_a
GHz
dB
Mag.
Ang.
dB
0.5
1.20
0.47
170.00 2.8
22.8
1.0
1.30
0.53 -177.00 2.6
20.1
2.0
1.61
0.61 -166.34 2.7
17.3
3.0
1.68
0.69 -155.85 4.0
14.4
4.0
2.12
0.67 -146.98 8.4
11.6
5.0
2.77
0.71 -134.35 19.0
9.9
6.0
2.58
0.79 -125.22 26.7
8.8
7.0
2.85
0.82 -115.35 47.2
7.5
8.0
3.35
0.73 -105.76 65.2
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 40. MSG/MAG and |S₂₁|² vs.
Frequency at 4.5V, 280 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.