3SK134B Datasheet, PDF (4/5 Pages) NEC – RF AMP. FOR UHF TV TUNER N-CHANNEL SILICON DUAL GATE MOS FIELD-EFFECT TRANSISTOR 4 PINS MINI MOLD

3SK134B
OUTPUT CAPACITANCE vs.
GATE2 TO SOURCE VOLTAGE
2.0 _{ID = 10 mA}
10
(at VDS = 10 V
VG2S = 4 V)
f = 1 MHz
1.5
1.0
5
0.5
0
–1.0
0
1.0
2.0
3.0
4.0
0
VG2S – Gate2 to Source Voltage – V
900 MHz Gps AND NF TEST CIRCUIT
VG2S (3 V)
1 000 pF
POWER GAIN AND NOISE FIGURE vs.
GATE2 TO SOURCE VOLTAGE
20
Gps
10
0
NF
–10
–20
–2.0
ID = 10 mA
(at VDS = 10 V
VG2S = 4 V)
f = 900 MHz
0
2.0
4.0
6.0
8.0
VG2S – Gate2 to Source Voltage – V
47 kΩ
1 000 pF
INPUT
50 Ω
to 10 pF
to 10 pF
L1
47 kΩ
to 10 pF to 10 pF
OUTPUT
50 Ω
L2
RFC
1 000 pF
VG1S
1 000 pF
VDD (6 V)
L1, L2; 35 × 5 × 0.2 mm
4