TSDF72830YS Datasheet, PDF (5/7 Pages) Vishay Siliconix – Dual - MOSMIC- two AGC Amplifiers for TV-Tuner Prestage with Integrated Band Switch for One-Line Switching

TSDF72830YS
Vishay Semiconductors
Amplifier 2
V_DS = V_RG1 = 5 V, V_G2S = 4 V, R_G1 = 100 kΩ, I_D = I_DSO, f = 1 MHz, T_amb = 25 °C, unless otherwise specified
Following data are valid for operating amplifier 2 (pin 3, 4, 2, 5) which is optimized for UHF applications
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
Forward transadmittance
|y_21s|
27
31
35
mS
Gate 1 input capacitance
C_issg1
1.7
2.1
pF
Feedback capacitance
C_rss
20
fF
Output capacitance
C_oss
0.9
pF
Power gain
G_S = 2 mS, B_S = B_Sopt,
G_ps
33
dB
G_L = 0.5 mS, B_L = B_Lopt,
f = 200 MHz
G_S = 3.3 mS, B_S = B_Sopt,
G_ps
30
dB
G_L = 1 mS, B_L = B_Lopt,
f = 400 MHz
G_S = 3.3 mS, B_S = B_Sopt,
G_ps
25
dB
G_L = 1 mS, B_L = B_Lopt,
f = 800 MHz
AGC range
V_DS = 5 V, V_G2S = 0.5 to 4 V,
G_ps
40
50
dB
f = 800 MHz
Noise figure
G_S = G_L = 20 mS, B_S = B_L = 0,
F
f = 50 MHz
5.0
7.0
dB
G_S = 2 mS, G_L = 0.5 mS,
F
B_S = B_Sopt, f = 400 MHz
1.0
1.5
dB
G_S = 3.3 mS, G_L = 1 mS,
F
B_S = B_Sopt, f = 800 MHz
1.3
2.0
dB
Cross modulation
Input level for
k = 1 % @ 0 dB
AGC f_w = 50 MHz,
f_unw = 60 MHz
X_mod
90
dBμV
Input level for
k = 1 % @ 40 dB
AGC f_w = 50 MHz,
f_unw = 60 MHz
X_mod
100
105
dBμV
Remark on improving intermodulation behavior:
By setting R_G1 smaller than 100 kΩ, typical value of I_DSO will raise and improved intermodulation behavior will be performed.
Document Number 85176
Rev. 1.1, 02-May-05
www.vishay.com
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