Collector Output Capacitance vs.
Collector to Base Voltage
100
f = 1 MHz
IE = 0
30
10
3
1
–1
–3
–10 –30
–100
Collector to Base Voltage VCB (V)
1,000
Noise Voltage Reffered to Input vs.
Signal Source Resistance
VCE = –6 V
f = 1 kHz
100
IC = –10 mA
10
–1
–0.1
1.0
0.1
10
100
1k
10 k 100 k
Signal Source Resistance Rg (Ω)
2SA1190, 2SA1191
Noise Voltage Reffered to Input vs.
Collector Current
10
VCE = –6 V
Rg = 0
f = 1 kHz
3
1.0
0.3
0.1
–0.1 –0.3
–1.0 –3
–10
Collector Current IC (mA)
Noise Voltage Reffered to Input vs.
Collector to Emitter Voltage
1.0
0.9
0.8
0.7
0.6
IC = –1 mA
Rg = 0
f = 1 kHz
0.5
–1
–3
–10 –30
–100
Collector to Emitter Voltage VCE (V)
7