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3SK177 Datasheet, PDF (2/6 Pages) NEC – RF AMP. FOR UHF TV TUNER N-CHANNEL GaAs DUAL-GATE MES FIELD-EFFECT TRANSISTOR 4 PIN MINI MOLD | |||
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3SK177
TYPICAL CHARACTERISTICS (TA = 25 ËC)
TOTAL POWER DISSIPATION vs.
AMBIENT TEMPERATURE
400
300
200
100
0
25
50
75
100 125
TA â Ambient Temperature â ËC
FORWARD TRANSFER ADMITTANCE vs.
GATE1 TO SOURCE VOLTAGE
30
VDS = 5 V
f = 1 kHz
VG2S = 1.0 V
0.5 V
20
DRAIN CURRENT vs.
GATE1 TO SOURCE VOLTAGE
30
VDS = 5 V
VG2S = 1.0 V
20
0.5 V
10
0V
â0.5 V
0
â1.0
0
+1.0
VG1S â Gate 1 to Source Voltage â V
FORWARD TRANSFER ADMITTANCE vs.
DRAIN CURRENT
30
VDS = 5 V
f = 1 kHz
VG2S = 1.0 V
20
VG2S = 0.5 V
0V
10
â0.5 V
0
â1.0
0
+1.0
VG1S â Gate 1 to Source Voltage â V
INPUT CAPACITANCE vs.
GATE2 TO SOURCE VOLTAGE
2.0
VDS = 5 V
f = 1 MHz
VG2S = 1 V at ID = 10 mA
1.0
VG2S = 1 V at ID = 5 mA
0
â1.0
0
+1.0
VG2S â Gate 2 to Source Voltage â V
10
0
10
20
30
ID â Drain Current â mA
FOWER GAIN AND NOISE FIGURE vs.
GATE2 TO SOURCE VOLTAGE
10
30 VDS = 5 V
VG2S = 1 V
at ID = 10 mA
15 f = 900 MHz
GPS
0
5
â15
â30
NF
0
â45
â3.0 â2.0
â1.0
0
+1.0 +2.0
VG2S â Gate 2 to Source Voltage â V
2
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