BF964S Vishay Telefunken, BF964S Datasheet - Page 4
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BF964S
Manufacturer Part Number
BF964S
Description
N-Channel Dual Gate MOS-Fieldeffect Tetrode/ Depletion Mode
Manufacturer
Vishay Telefunken
Datasheet
1.BF964S.pdf
(8 pages)
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Vishay Telefunken
www.vishay.de FaxBack +1-408-970-5600
4 (8)
Figure 8. Transducer Gain vs. Gate 1 Source Voltage
12767
12768
12769
Figure 9. Forward Transadmittance vs. Drain Current
–10
–20
–30
–40
–50
–60
–70
4.0
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
10
24
22
20
18
16
14
12
10
0
Figure 7. Gate 2 Input Capacitance vs.
0
8
6
4
2
0
–3
–5
0
f= 200MHz
V
V
–2
f=1MHz
f=1MHz
V
–4
DS
DS
G1S
V
V
5
=15V
Gate 2 Source Voltage
=15V
G2S
G1S
–1
=0
–3
I
D
– Gate 2 Source Voltage ( V )
– Gate 1 Source Voltage ( V )
10
– Drain Current ( mA )
0
0V
–2
1
–1
15
0.5V
2
0
V
20
3
G2S
V
1
=–2...–3V
1V
4
G2S
25
–0.5V
–1V
4V
3V
2V
1V
0V
=4V
2
5
3V
2V
30
6
3
Figure 11. Short Circuit Reverse Transfer Admittance
Figure 12. Short Circuit Forward Transfer Admittance
12770
12772
12771
–0.1
–10
–15
–20
–25
–30
–35
–40
0.3
0.2
0.1
0.0
20
18
16
14
12
10
Figure 10. Short Circuit Input Admittance
–5
8
6
4
2
0
5
0
–8
0
0
f=100...1300MHz
1300MHz
20mA
2
100MHz
–4
I
V
D
V
400MHz
20mA
=5mA
0.1
DS
G2S
700MHz
4
10mA
I
D
=15V
0
10mA
=4V
700MHz
=5mA
I
6
D
f=1300MHz
=5mA
Re (y
Re (y
Re (y
1000MHz
4
0.2
8
1000MHz
11
12
21
10 12 14 16 18 20
8
1000MHz
) ( mS )
) ( mS )
) ( mS )
f=100...1300MHz
0.3
f=100...1300MHz
12
Document Number 85003
V
V
f=1300MHz
V
V
DS
G2S
DS
G2S
700MHz
f=100MHz
I
16
=15V
D
I
=4V
=15V
0.4
D
=20mA
=4V
400MHz
=10mA
Rev. 3, 20-Jan-99
20
0.5
24