3SK254 NEC, 3SK254 Datasheet - Page 5

• Manufacturer Part Number: 3SK254
• Description: RF AMPLIFIER FOR CATV TUNER N-CHANNEL Si DUAL GATE MOS FIELD-EFFECT TRANSISTOR 4 PINS SUPER MINI MOLD
• Manufacturer: NEC

G
NF TEST CIRCUIT AT f = 55 MHz
PS
AND NF TEST CIRCUIT AT f = 470 MHz
INPUT
50
50
INPUT
40 pF
1 000 pF
1 000 pF
V
22 k
G1S
22 k
1 500 pF
1 000 pF
L
1
3.3
k
V
G2S
1 000 pF
15 pF
27 pF
Ferrite Beads
V
G2S
1 000 pF
2.2 k
k
47
15 pF
V
G1S
1 000 pF
47 k
V
L
2
DS
V
DS
RFC
1 000 pF
1 000 pF
Ferrite Beads
L
40 pF OUTPUT
3
1 500 pF
27 pF
L
L
L
1
2
3
50
:
:
: REC 2.2
1.2 mm U.E.W
1.2 mm U.E.W
3.3 k
H
5 mm 1T
5 mm 1T
OUTPUT
50
3SK254
5