问     本人在做一个150M低噪放，请大家帮个忙。谢谢了！！ 答 1: 9014怎样? 答 2: c2856Gain bandwidth product fT — 310 — — 310 — MHz VCE = 6 V, IC = 10 mA
Collector output
capacitance
Cob — 3 — — 3 — pF VCB = 10 V, IE = 0,
f = 1 MHz
Noise figure NF — 0.15 1.5 — 0.15 1.5 dB VCE = 6 V, IC = 0.1 mA,
Rg = 10 kW, f = 1 kHz
— 0.2 2.0 — 0.2 2.0 dB VCE = 6 V, IC = 0.1 mA,
Rg = 10 kW, f = 10 Hz
Noise voltage referred to
input
en — 0.7 — — 0.7 — nV/ÖHz VCE = 6 V, IC = 10 mA,
Rg = 0, f = 1 kHz