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參數(shù)資料
| 型號： | MRF148A |
| 元件分類： | 功率晶體管 |
| 英文描述： | VHF BAND, Si, N-CHANNEL, RF POWER, MOSFET |
| 封裝： | CASE 211-07, 4 PIN |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 169K |
| 代理商： | MRF148A |
Figure 2. Power Gain versus Frequency
Figure 3. Output Power versus Input Power
Figure 4. IMD versus Pout
Figure 5. Common Source Unity Gain Frequency
versus Drain Current
Figure 6. 150 MHz Test Circuit
C1 — 91 pF Unelco Type MCM 01/010
C2, C4 — 0.1
F Erie Red Cap
C3 — Allen Bradley 680 pF Feed Thru
C5 — 1.0
F, 50 Vdc Electrolytic
C6 — 15 pF Unelco Type J101
C7 — 24 pF Unelco Type MCM 01/010
L1 — 2 Turns #18 AWG, 5/16
″ ID
L2 — 4 Turns #18 AWG, 5/16
″ ID
R1 — 1.0 Ohm, 1/4 W Carbon
R2 — 2000 Ohm, 1/4 W Carbon
RFC1 — VK200 21/4B
T1 — 4:1 Transformer, 1.75
″ Subminiature
T1 — Coaxial Cable
T1 — 4:1 Impedance Ratio
T1 — Transformer, Line
T1 — Impedance = 25
+ BIAS
+ 50 Vdc
RF OUTPUT
RF INPUT
C3
C2
R2
R1
C1
T1
DUT
L2
C4
RFC1
L1
C6
C7
50
12.5
C5
POWER
GAIN
(dB)
f, FREQUENCY (MHz)
25
20
15
10
5
0
2
5
10
20
200
50
100
VDD = 50 V
IDQ = 100 mA
Pout = 30 W (PEP)
P out
,OUTPUT
POWER
(W
A
TTS)
Pin, INPUT POWER (WATTS)
60
40
0
0.5
1
1.5
2
2.5
20
60
40
20
150
MHz
30
MHz
VDD = 50 V
40 V
VDD = 50 V
40 V
IDQ = 100 mA
IMD,
INTERMODULA
TION
DIST
OR
TION
(dB)
Pout, OUTPUT POWER (WATTS PEP)
–30
–40
–50
–30
–40
–50
010
20
30
40
d5
d3
d5
VDD = 50 V, IDQ = 100 mA, TONE SEPARATION 1 kHz
150
MHz
30
MHz
2000
1000
0
01
2
3
4
ID, DRAIN CURRENT (AMPS)
VDS = 15 V
f
T
,UNITY
GAIN
FREQUENCY
(MHz)
VDS = 30 V
0–6 V
+
3
Replaces MRF148/D
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