S949T Datasheet, PDF (3/9 Pages) Vishay Siliconix – MOSMIC for TV-Tuner Prestage with 9 V Supply Voltage

S949T/S949TR/S949TRW
Vishay Telefunken
Electrical AC Characteristics
V_DS = 9 V, V_G2S = 4 V, f = 1 MHz , T_amb = 25_C, unless otherwise specified
Parameter
Forward transadmittance
Gate 1 input capacitance
Feedback capacitance
Output capacitance
Power gain
AGC range
Noise figure
Test Conditions
G_S = 2 mS, G_L = 0.5 mS, f = 200 MHz
G_S = 3,3 mS, G_L = 1 mS, f = 800 MHz
V_DS = 9 V, V_G2S = 1 to 4 V, f = 800 MHz
G_S = 2 mS, G_L = 0.5 mS, f = 200 MHz
G_S = 3,3 mS, G_L = 1 mS, f = 800 MHz
Symbol Min Typ Max Unit
y_21s 25 30 35 mS
C_issg1
2.3 2.7 pF
C_rss
25
fF
C_oss
1
pF
G_ps
28
dB
G_ps 17 20
dB
DG_ps 45
dB
F
1
dB
F
1.3
dB
Common Source S–Parameters
V_DS = 9 V , V_G2S = 4 V , Z₀ = 50 W, T_amb = 25_C, unless otherwise specified
f/MHz
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
S11
LOG
MAG
ANG
dB
deg
–0.01
–4.7
–0.03
–9.5
–0.12
–14.0
–0.19
–18.4
–0.29
–23.1
–0.40
–27.4
–0.52
–31.9
–0.66
–35.9
–0.80
–39.9
–0.95
–44.0
–1.08
–47.9
–1.25
–51.6
–1.40
–55.3
–1.53
–59.0
–1.68
–62.5
–1.83
–66.0
–1.98
–69.4
–2.08
–72.7
–2.21
–76.0
–2.34
–79.4
–2.47
–82.6
–2.62
–85.6
–2.74
–88.8
–2.84
–91.8
–2.92
–94.8
–3.04
–97.7
S21
LOG
MAG
ANG
dB
deg
9.57
174.6
9.48
168.3
9.38
161.8
9.26
155.8
9.11
149.3
8.96
143.7
8.73
138.0
8.57
132.0
8.33
126.9
8.14
121.5
7.93
116.3
7.70
110.9
7.48
106.5
7.25
101.6
7.10
96.9
6.90
92.1
6.71
87.6
6.52
82.6
6.36
78.0
6.17
74.0
6.02
69.7
5.80
65.0
5.69
60.5
5.56
56.3
5.52
51.9
5.34
47.1
S12
LOG
MAG
ANG
dB
deg
–62.54
87.6
–56.18
84.2
–52.86
81.0
–50.58
78.7
–48.96
75.6
–47.89
73.4
–47.02
71.5
–46.44
70.0
–46.25
69.1
–46.08
68.7
–46.21
69.9
–46.22
73.2
–46.19
74.3
–46.47
78.5
–47.15
83.5
–47.48
92.3
–47.39
103.5
–46.82
115.7
–45.32
125.0
–44.07
129.4
–43.32
134.1
–42.50
140.6
–41.25
145.5
–39.97
150.1
–38.65
153.2
–37.46
154.8
S22
LOG
MAG
ANG
dB
deg
–0.17
–2.3
–0.23
–3.6
–0.24
–5.4
–0.26
–7.1
–0.28
–9.1
–0.33
–10.6
–0.36
–12.3
–0.40
–14.0
–0.44
–15.6
–0.48
–17.2
–0.51
–18.8
–0.55
–20.4
–0.59
–21.7
–0.61
–23.4
–0.62
–24.9
–0.65
–26.4
–0.67
–28.0
–0.70
–29.8
–0.71
–31.4
–0.68
–33.0
–0.70
–34.6
–0.74
–36.0
–0.72
–37.8
–0.69
–39.7
–0.60
–41.9
–0.67
–43.3
Document Number 85061
Rev. 3, 20-Jan-99
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