參數(shù)資料
型號(hào)： MRF174
廠商： MOTOROLA INC
元件分類： 功率晶體管
英文描述： N-CHANNEL MOS BROADBAND RF POWER FET
中文描述： VHF BAND, Si, N-CHANNEL, RF POWER, MOSFET
封裝： CASE 211-11, 4 PIN
文件頁(yè)數(shù)： 2/10頁(yè)
文件大?。?/td> 168K
代理商： MRF174
MRF174
2
MOTOROLA RF DEVICE DATA
ELECTRICAL CHARACTERISTICS
(TC = 25
°
C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OFF CHARACTERISTICS
Drain–Source Breakdown Voltage (VGS = 0, ID = 50 mA)
Zero Gate Voltage Drain Current (VDS = 28 V, VGS = 0)
Gate–Source Leakage Current (VGS = 20 V, VDS = 0)
ON CHARACTERISTICS
V(BR)DSS
IDSS
IGSS
65
—
—
Vdc
—
—
10
mAdc
—
—
1.0
μ
Adc
Gate Threshold Voltage (VDS = 10 V, ID = 100 mA)
Forward Transconductance (VDS = 10 V, ID = 3.0 A)
DYNAMIC CHARACTERISTICS
VGS(th)
gfs
1.0
3.0
6.0
Vdc
1.75
2.5
—
mhos
Input Capacitance (VDS = 28 V, VGS = 0, f = 1.0 MHz)
Output Capacitance (VDS = 28 V, VGS = 0, f = 1.0 MHz)
Reverse Transfer Capacitance (VDS = 28 V, VGS = 0, f = 1.0 MHz)
FUNCTIONAL CHARACTERISTICS
(Figure 1)
Ciss
Coss
Crss
—
175
—
pF
—
190
—
pF
—
40
—
pF
Noise Figure
(VDD = 28 Vdc, ID = 2.0 A, f = 150 MHz)
NF
—
3.0
—
dB
Common Source Power Gain
(VDD = 28 Vdc, Pout = 125 W, f = 150 MHz, IDQ = 100 mA)
Gps
9.0
11.8
—
dB
Drain Efficiency
(VDD = 28 Vdc, Pout = 125 W, f = 150 MHz, IDQ = 100 mA)
η
50
60
—
%
Electrical Ruggedness
(VDD = 28 Vdc, Pout = 125 W, f = 150 MHz, IDQ = 100 mA,
VSWR 30:1 at all Phase Angles)
ψ
No Degradation in Output Power
Figure 1. 150 MHz Test Circuit
C1 — 15 pF Unelco
C2 — Arco 462, 5.0–80 pF
C3 — 100 pF Unelco
C4 — 25 pF Unelco
C6 — 40 pF Unelco
C7 — Arco 461, 2.7–30 pF
C5, C8 — Arco 463, 9.0–180 pF
C9, C11, C14 — 0.1
μ
F Erie Redcap
C10 — 50
μ
F, 50 V
C12, C13 — 680 pF Feedthru
D1 — 1N5925A Motorola Zener
L1 — #16 AWG, 1–1/4 Turns, 0.213
″
ID
L2 — #16 AWG, Hairpin
0.25
″
0.062
″
L3 — #14 AWG, Hairpin
0.47
″
0.2
″
L4 — 10 Turns #16 AWG Enameled Wire on R1
RFC1 — 18 Turns #16 AWG Enameled Wire, 0.3
″
ID
R1 — 10
, 2.0 W
R2 — 1.8 k
, 1/2 W
R3 — 10 k
, 10 Turn Bourns
R4 — 10 k
, 1/4 W
BIAS
ADJUST
+
–
RF OUTPUT
RF INPUT
VDD = 28 V
–
+
C9
C10D1
R3
R2
C11
C12
L4
R1
C13
C14
RFC1
R4
DUT
C1
C2
C
3
L1
L2
C4
C5
L3
C6
C7
C8
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