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參數資料
| 型號： | MRF1508 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 功率晶體管 |
| 英文描述： | UHF BAND, Si, N-CHANNEL, RF POWER, MOSFET |
| 封裝： | POWER, PLASTIC, CASE 466-02, 4 PIN |
| 文件頁數： | 16/16頁 |
| 文件大小： | 202K |
| 代理商： | MRF1508 |
LIFETIME
BUY
LAST
ORDER
30JUN02
LAST
SHIP
30DEC0
2
9
MRF1508
MOTOROLA RF DEVICE DATA
f
MHz
Zin
ZOL*
135
11.7 – j4.4
8.7 – j0.2
Zin
= Conjugate of source impedance
with parallel 20
resistor and
82 pF capacitor in series with gate.
(See Figure 19).
ZOL* = Conjugate of the load impedance
at given output power, voltage,
frequency, and
ηD > 50 %.
VDD = 12.5 V, IDQ = 150 mA, Pout = 8 W
155
11.8 – j6.8
7.2 – j3.8
Note: ZOL* was chosen based on tradeoffs between gain, drain efficiency, and device stability.
Zin
ZOL*
Figure 28. Series Equivalent Input and Output Impedance
175
11.3 – j8.8
6.3 – j7.7
Zo = 10
f = 500 MHz
520
f
MHz
Zin
ZOL*
400
2.5 – j3.9
7.1 – j0.1
Zin
= Conjugate of source impedance
with parallel 20
resistor and
82 pF capacitor in series with gate.
(See Figure 10).
ZOL* = Conjugate of the load impedance
at given output power, voltage,
frequency, and
ηD > 50 %.
VDD = 12.5 V, IDQ = 150 mA, Pout = 8 W
440
3.0 – j4.1
6.8 – j2.3
470
2.4 – j4.3
6.8 – j4.2
f
MHz
Zin
ZOL*
500
2.0 – j4.8
3.5 – j3.5
Zin
= Conjugate of source impedance
with parallel 20
resistor and
82 pF capacitor in series with gate.
(See Figure 1).
ZOL* = Conjugate of the load impedance
at given output power, voltage,
frequency, and
ηD > 50 %.
VDD = 12.5 V, IDQ = 150 mA, Pout = 8 W
510
2.4 – j3.4
3.5 – j2.7
520
2.2 – j3.8
3.5 – j2.6
ZOL*
Zin
ZOL*
f = 500 MHz
520
470
400
Zin
470
f = 400 MHz
f = 135 MHz
175
f = 135 MHz
175
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