2SC4197 Datasheet, PDF (8/10 Pages) Hitachi Semiconductor – Silicon NPN Epitaxial

2SC4197
Conversion Gain and Noise Figure Test Circuit
V_Tin
V_BB
1k
2.2 n
f_osc = 930 MHz
(–5 dBm)
,,,,,,, ^L1
2.2 n
L₄
L₂
8p
D.U.T.
,,,,,,, _D1
L₃
47 p
, ¹⁰⁰
f_in = 900 MHz
V_CC
2.2 n
1k
220 µ
f_out = 30 MHz
L₅
100 p 100 p ^RL ^{= 50 Ω}
2.2 n
D_{1 47 k}
2.2 n
Unit R : Ω
C:F
L:H
V_Tout
,,,^{,,,,,, D1 : 1 SV 188}
,^{, ,,,,, L1 : φ 1 mm Enameled Copper Wire.}
,_,,,,,,,,^,,_{,,, L2 : φ 1 mm Enameled Copper Wire.}
,,^{,,,,,,,,,,,,,,,,,,,,,,, L3 : φ 1 mm Enameled Copper Wire.}
25
10
15
30
,,,,,,^, _{L4 : φ 0.5 mm Enameled Copper Wire 1 Turn Inside Dia 3 mm}
Unit : mm
L₅ : Inside Dia 5 mm Bobin, φ 0.2 mm Enameled Copper Wire 20 Turns with Ferrite Core.
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