BC856W...BC860Wh parameter he = f (IC) normalizedh parameter he = f (VCE) normalized VCE = 5V IC = 2mA BC 856...860 EHP00383 2 10 BC 856...860 EHP00384 2.0 h 5 e he Ι = 2 mA C h11 1.5 h V = 5 V CE 1 11e 10 5 1.0 h h 12e 12 10 0 h 0.5 22 5 h 21e h 22e -1 10 0 10 -1 5 10 0 mA 10 1 0 10 20 V 30 Ι V C CE Noise figure F = f (VCE) Noise figure F = f (f) IC = 0.2mA, RS = 2kΩ, f = 1kHz IC = 0.2mA, VCE = 5V, RS = 2kΩ BC 856...860 EHP00385 20 BC 856...860 EHP00386 20 dB dB F F 15 15 10 10 5 5 0 0 10 -1 10 0 10 1 V 10 2 5 5 10 -2 10 -1 0 10 10 1 kHz 10 2 VCE f 7 Jan-28-2005