参数资料
型号: MRF2628
厂商: MOTOROLA INC
元件分类: 功率晶体管
英文描述: RF POWER TRANSISTOR NPN SILICON
中文描述: VHF BAND, Si, NPN, RF POWER TRANSISTOR
封装: CASE 244-04, 4 PIN
文件页数: 4/6页
文件大小: 112K
代理商: MRF2628
MRF2628
4
MOTOROLA RF DEVICE DATA
Figure 8. Typical Performance in a Broadband Circuit
G
16
170
150
f, FREQUENCY (MHz)
155
160
165
175
80
14
12
10
8
6
4
2
0
70
60
50
40
c
η
GPE
η
c
INPUT VSWR
Pin = 0.75 W
VCC = 12.5 V
1.5:1
1.25:1
1:1
Figure 9. Series Equivalent Impedance
Zin
f = 136 MHz
220
150
ZOL*
f = 136 MHz
175
175
220
150
Zo = 10
f
MHz
Zin
Ohms
ZOL*
Ohms
136
150
175
220
0.59 – j0.80
0.68 – j0.61
0.69 – j0.17
0.62 + j0.39
5.07 – j4.76
5.23 – j4.14
5.26 – j3.46
5.25 – j2.46
ZOL* = Conjugate of the optimum load impedance
ZOL* =
into which the device output operates at a
ZOL* =
given output power, voltage and frequency.
VCC = 12.5 V, Pout = 15 W
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