參數(shù)資料
型號: MRF148A
廠商: MOTOROLA INC
元件分類: 功率晶體管
英文描述: RF Power FETs(RF功率場效應管)
中文描述: 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?。?/td> 154K
代理商: MRF148A
3
MRF148A
MOTOROLA RF DEVICE DATA
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
μ
F Erie Red Cap
C3 — Allen Bradley 680 pF Feed Thru
C5 — 1.0
μ
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
P
f, FREQUENCY (MHz)
25
20
15
10
5
02
5
10
20
200
50
100
VDD = 50 V
IDQ = 100 mA
Pout = 30 W (PEP)
P
Pin, INPUT POWER (WATTS)
60
40
0
00
0.5
1
1.5
2
2.5
20
60
40
20
1
3
VDD = 50 V
40 V
VDD = 50 V
40 V
IDQ = 100 mA
IDQ = 100 mA
I
Pout, OUTPUT POWER (WATTS PEP)
–30
–40
–50
–30
–40
–50
0
10
20
30
40
d5
d3
d3
d5
VDD = 50 V, IDQ = 100 mA, TONE SEPARATION 1 kHz
1
3
2000
1000
0
0
1
2
3
4
ID, DRAIN CURRENT (AMPS)
VDS = 15 V
f
VDS = 30 V
0–6 V
+
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