2SC4197 Datasheet, PDF (4/10 Pages) Hitachi Semiconductor – Silicon NPN Epitaxial

2SC4197
Conversion Gain, Noise Figure
vs. Collector Current
25
V_CC = 5 V
f = 900 MHz
CG
20
15
NF
10
5
f_out = 30 MHz
f_osc = 930 MHz (−5 dBm)
0
0.1 0.2
0.5 1.0 2
5
Collector Current I_C (mA)
Rev.3.00 Aug 10, 2005 page 4 of 9