THN4501U Datasheet, PDF (5/15 Pages) AUK corp – SiGe NPN Transistor

THN4501 Series
Transition Frequency : f_T vs. I_C
C_CB vs. V_CB
15
f = 2 GHz
13
11
V_CE = 3 V
V_CE = 2 V
9
V_CE = 1 V
7
5
3
0
20
40
60
80
100
I_C [mA]
1.4
f = 1 MHz
1.3
1.2
1.1
1
0
3
6
9
12
15
18
V_CB [V]
NF vs. I_C
V_CE = 3 V, I_C = parameter, Z_S = Z_Sopt
3
2.5
2
f = 2 GHz
1.5
1
0.5
0
f = 1 GHz
5
10
15
20
25
30
I_C [mA]
Noise Figure Contours & Constant Gain
f = 1 GHz, 2 GHz, V_CE = 3 V, I_C = 5 mA
G_A=12.5d
B
=11.5dB
Output Stable
f = 1GHz
Γ_OPT=0.545∠146
NF =1.05dB
=1.1dB
=1.2dB
3 contour
G_A=9.5dB
=8.5dB
=7.5dB
3contour
Input Stable
f = 2GHz
Γ_OPT=0.712∠-173
NF =1.45dB
=1.5dB
=1.6dB
3 contour
5