參數(shù)資料
型號(hào): MRF492
廠商: MOTOROLA INC
元件分類: 功率晶體管
英文描述: RF POWER TRANSISTOR NPN SILICON
中文描述: VHF BAND, Si, NPN, RF POWER TRANSISTOR
封裝: CASE 211-11, 4 PIN
文件頁數(shù): 2/4頁
文件大小: 84K
代理商: MRF492
MRF492
2
MOTOROLA RF DEVICE DATA
Figure 1. 50 MHz Test Circuit
RFC2
DUT
RFC1
RF
INPUT
RF
OUTPUT
+12.5 Vdc
C6
C7
C4
C3
C2
C5
L2
L3
C8
C1
L1
+
BEAD
100
80
60
40
20
00
1
2
3
4
5
6
7
8
9
10
Pin, INPUT POWER (WATTS)
VCC = 12.5 V
f = 50 MHz
VCC = 12.5 V
Pout = 70 W
20
18
16
14
12
1020
25
30
35
40
45
50
f, FREQUENCY (MHz)
G
o
C1, C8 — 9.0–180 pF, Arco 463
C2, C3, C4 — 80–480 pF, Arco 466
C5 — 1000 pF, 350 V, Unelco
C6 — 10
μ
F, 25 Vdc
C7 — 0.01
μ
F, Ceramic
RFC1 — 10
μ
H Molded Choke
RFC2 — 12 Turns, #16 AWG, Enameled Wire Closewound
RFC2 —
on a 2.0 W Carbon Resistor
L1 — 2 Turns, #18 AWG Enameled Wire, 0.4
ID, 0.15
Long
L2 — Loop, #12 AWG Wire, 0.6
High, 0.4
Wide
L3 — 2 Turns, #12 AWG Wire, ID 0.4
, 0.25
Long
Bead — Ferrite Bead Ferroxcube #56–590–65/3B
Figure 2. Output Power versus Input Power
Figure 3. Power Gain versus Frequency
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