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參數(shù)資料
| 型號： | MRF899 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 功率晶體管 |
| 英文描述： | 2 CHANNEL, UHF BAND, Si, NPN, RF POWER TRANSISTOR |
| 封裝： | CASE 375A-01, 5 PIN |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 439K |
| 代理商： | MRF899 |
ARCHIVE
INFORMA
TION
ARCHIVE
INFORMA
TION
MRF899
2
MOTOROLA RF DEVICE DATA
ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
FUNCTIONAL CHARACTERISTICS
Common–Emitter Amplifier Power Gain
VCC = 26 Vdc, Pout = 150 Watts (PEP), Icq = 300 mA, f1 = 900 MHz,
f2 = 900.1 MHz
Gpe
8.0
9.0
—
dB
Collector Efficiency
VCC = 26 Vdc, Pout = 150 Watts (PEP), Icq = 300 mA, f1 = 900 MHz,
f2 = 900.1 MHz
η
30
40
—
%
3rd Order Intermodulation Distortion
VCC = 26 Vdc, Pout = 150 Watts (PEP), Icq = 300 mA, f1 = 900 MHz,
f2 = 900.1 MHz
IMD
—
–32
–28
dBc
Output Mismatch Stress
VCC = 26 Vdc, Pout = 150 Watts (PEP), Icq = 300 mA, f1 = 900 MHz,
f2 = 900.1 MHz, VSWR = 5:1 (all phase angles)
ψ
No Degradation in Output Power
Before and After Test
Figure 1. 900 MHz Power Gain Test Circuit
B1, B2 — Ferrite Bead, Ferroxcube #56–590–65–3B
C1, C2, C24, C25 — 43 pF, B Case, ATC Chip Capacitor
C3, C4, C20, C21 — 100 pF, B Case, ATC Chip Capacitor
C5, C6, C12, C13 — 1000 pF, B Case, ATC Chip Capacitor
C7, C8, C14, C15 — 1800 pF, AVX Chip Capacitor
C9 — 9.1 pF, A Case, ATC Chip Capacitor
C10, C11, C17, C18, C22, C23 — 10
F, Electrolytic Capacitor
Panasonic
C16 — 3.9 pF, B Case, ATC Chip Capacitor
C19 — 0.8 pF, B Case, ATC Chip Capacitor
C26 — 200
F, Electrolytic Capacitor Mallory Sprague
C27 — 500
F Electrolytic Capacitor
L1 — 5 Turns 24 AWG IDIA 0.059
″ Choke, 19.8 nH
L2, L3, L7, L9 — 4 Turns 20 AWG IDIA 0.163
″ Choke
L4, L5, L6, L8 — 12 Turns 22 AWG IDIA 0.140
″ Choke
N1, N2 — Type N Flange Mount, Omni Spectra
Q1 — Bias Transistor BD136 PNP
R2, R3, R4, R5 — 4.0 x 39 Ohm 1/8 W Chips in Parallel
R1a, R1b — 56 Ohm 1.0 W
TL1–TL8 — See Photomaster
Balun1, Balun2, Coax 1, Coax 2 — 2.20
″ 50 Ohm 0.088″ o.d.
Balun1, Balun2, Coax 1, Coax 2 — Semi–rigid Coax, Micro Coax
Board — 1/32
″ Glass Teflon, εr = 2.55″ Arlon (GX–0300–55–22)
COAX 1
BALUN 1
INPUT
OUTPUT
TL1
C1
C2
L1
TL2
R1a
VBB
VCC
VB
R1b
L2
B1
L4
R2
C3
TL3
TL4
C9
D.U.T.
L5
R3
C4
+
C26
VB
Q1
C6
C8
C11
+
++
C27
C15
C13
C18
R4
L8
C21
C23
TL8
L9
L7
C25
C19
C16
TL5
TL6
C24
TL7
BALUN 2
COAX 2
C22
C20
L6
R3
C17
C14
C12
C10
C7
C5
L3
B2
VCC
+
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