|
|
Número de pieza | BF998 | |
Descripción | N-Channel Dual Gate MOS-Fieldeffect Tetrode/ Depletion Mode | |
Fabricantes | Vishay Telefunken | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de BF998 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
No Preview Available ! BF998/BF998R/BF998RW
Vishay Telefunken
N–Channel Dual Gate MOS-Fieldeffect Tetrode,
Depletion Mode
Electrostatic sensitive device.
Observe precautions for handling.
Applications
Input and mixer stages in UHF tuners.
Features
D Integrated gate protection diodes
D Low noise figure
D Low feedback capacitance
D High cross modulation performance
D Low input capacitance
D High AGC-range
D High gain
21
12
94 9279
13 579
34
BF998 Marking: MO
Plastic case (SOT 143)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
12
94 9278
43
95 10831
BF998R Marking: MOR
Plastic case (SOT 143R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
13 654
13 566
43
BF998RW Marking: WMO
Plastic case (SOT 343R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
Document Number 85011
Rev. 4, 23-Jun-99
www.vishay.de • FaxBack +1-408-970-5600
1 (9)
1 page 10
f= 800MHz
0
–10
–20
–30
–40
4V
3V
2V
1V
0
–0.2V
–0.4V
VG2S=–0.8V
–50
–1
12818
–0.5 0.0 0.5 1.0 1.5
VG1S – Gate 1 Source Voltage ( V )
Figure 7. Transducer Gain vs. Gate 1 Source Voltage
32
VDS=8V
28 f=1MHz
24
VG2S=4V
3V
20
16
2V
12
12819
8
4
0
0
1V
0
4 8 12 16 20 24 28
ID – Drain Current ( mA )
Figure 8. Forward Transadmittance vs. Drain Current
20
18
16
14
12
10
8
6
4
2
0
0
12820
f=1300MHz
1000MHz
700MHz
400MHz
100MHz
VDS=8V
VG2S=4V
ID=10mA
f=100...1300MHz
2 4 6 8 10 12 14
Re (y11) ( mS )
Figure 9. Short Circuit Input Admittance
BF998/BF998R/BF998RW
Vishay Telefunken
5
0
VDS=8V
VG2S=4V
–5 f=100...1300MHz
f=100MHz
–10 ID=5mA
–15 10mA
–20 20mA
–25
400MHz
700MHz
–30 1000MHz
–35
1300MHz
–40
0 4 8 12 16 20 24 28 32
12821
Re (y21) ( mS )
Figure 10. Short Circuit Forward Transfer Admittance
9
8 f=1300MHz
7
6 1000MHz
5
4 700MHz
12822
3
2
1
0
0
400MHz
100MHz
VDS=15V
VG2S=4V
ID=10mA
f=100...1300MHz
0.25 0.50 0.75 1.00 1.25 1.50
Re (y22) ( mS )
Figure 11. Short Circuit Output Admittance
Document Number 85011
Rev. 4, 23-Jun-99
www.vishay.de • FaxBack +1-408-970-5600
5 (9)
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet BF998.PDF ] |
Número de pieza | Descripción | Fabricantes |
BF990A | N-channel dual-gate MOS-FET | NXP Semiconductors |
BF991 | N-channel dual-gate MOS-FET | NXP Semiconductors |
BF992 | Silicon N-channel dual gate MOS-FET | NXP Semiconductors |
BF994 | Silicon N Channel MOSFET Tetrode (For VHF applications/ especially for input and mixer stages with a wide tuning range/ e.g. in CATV tuners) | Siemens Semiconductor Group |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |