參數(shù)資料
型號(hào): MRF644
廠(chǎng)商: MOTOROLA INC
元件分類(lèi): 功率晶體管
英文描述: RF POWER TRANSISTOR NPN SILICON
中文描述: UHF BAND, Si, NPN, RF POWER TRANSISTOR
文件頁(yè)數(shù): 3/4頁(yè)
文件大小: 99K
代理商: MRF644
3
MRF644
MOTOROLA RF DEVICE DATA
o
i
Figure 2. Power Output versus Power Input
Figure 3. Power Output versus Frequency
Figure 4. Power Output versus Supply Voltage
Figure 5. Power Saturation Profile
Figure 6. Series Equivalent Input–Output Impedance
o
o
o
VCC, SUPPLY VOLTAGE (VOLTS)
40
4
10
30
20
0
6
8
10
12
14
16
18
20
Pin, POWER INPUT (WATTS)
40
1
10
30
20
0
2
3
4
5
6
7
8
9
f, FREQUENCY (MHz)
460
480
500
520
440
40
10
30
20
0
Pin, POWER INPUT (WATTS)
2
1
40
10
30
20
0
3
4
5
6
7
8
9
Pin = 8 W
VCC = 13.6 V
6 W
f = 470 MHz
12.5 V
VCC = 12.5 V
f = 470 MHz
Pin = 6 W
f = 470 MHz
VCC = 13.6 V
12.5 V
0
20
5.0
10
15
20
15
10
5.0
f = 450 MHz
5.0
f = 450 MHz
470
25
10
512
512
ZOL*
Zin
FREQUENCY
MHz
Zin
(OHMS)
ZOL*
(OHMS)
450
470
512
1.21 + j3.47
1.21 + j3.25
1.06 + j2.09
1.76 + j1.96
1.90 + j2.14
1.96 + j2.34
ZOL* = Conjugate of the optimum load impedance into which the device output
operates at a given output power, voltage and frequency.
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