3SK176A NEC, 3SK176A Datasheet - Page 3

• Manufacturer Part Number: 3SK176A
• Description: RF AMP. AND MIXER FOR CATV TUNER N-CHANNEL Si DUAL GATE MOS FIELD-EFFECT TRANSISTOR 4 PINS MINI MOLD
• Manufacturer: NEC

NF TEST CIRCUIT AT f = 55 MHz
2.0
1.0
0
INPUT
–1.0
50
V
OUTPUT CAPACITANCE vs.
GATE2 TO SOURCE VOLTAGE
G2S
0
– Gate 2 to Source Voltage – V
1.0
I
I
D
D
= 10 mA at V
= 5 mA at V
2.0
1 500 pF
3.3 k
G2S
3.0
V
f = 1 MHz
G2S
DS
= 3 V
27 pF
= 3 V
= 6 V
V
G2S
1 000 pF
4.0
47 k
2.2 k
V
G1S
1 000 pF
47 k
10
5
0
V
DS
RFC
27 pF
–10
–20
Ferrite
Beads 1 500 pF
20
10
0
–2.0
POWER GAIN AND NOISE FIGURE vs.
GATE2 TO SOURCE VOLTAGE
V
G2S
0
– Gate 2 to Source Voltage – V
3.3 k
2.0
G
NF
4.0
PS
f = 470 MHz
I
(at V
D
= 10 mA
3SK176A
V
6.0
OUTPUT
G2S
DS
50
= 6 V
= 3 V)
8.0
3