PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
6.4-7.2GHz BAND 32W INTERNALLY MATCHED GaAs FET
DESCRIPTION
The MGFC45V6472A is an internally impedance-matched
GaAs power FET especially designed for use in 6.4-7.2
GHz band amplifiers.The hermetically sealed metal-ceramic
package guarantees high reliability.
FEATURES
Class A operation
Internally matched to 50(ohm) system
High output power
P1dB = 32W (TYP.) @ f=6.4-7.2 GHz
High power gain
GLP = 8 dB (TYP.) @ f=6.4-7.2GHz
High power added efficiency
PAE = 28 % (TYP.) @ f=6.4-7.2GHz
Low distortion [item -51]
IM3=-42dBc(min.) @Po=34.5dBm S.C.L.
Thermal Resistance
Rth(ch-c)=1.0 deg.C/W(MAX.)
APPLICATION
item 01 : 6.4-7.2 GHz band power amplifier
item 51 : 6.4-7.2 GHz band digital ratio communication
QUALITY GRADE
IG
RECOMMENDED BIAS CONDITIONS
VDS = 10V
ID = 8.0 A
RG=25 ohm
27-March'98
MITSUBISHI SEMICONDUCTOR <GaAs FET>
MGFC45V6472A
OUTLINE DRAWING Unit:millimeters (inches)
24 +/- 0.3
0.6 +/- 0.15
2MIN
R1.2
8.0 +/- 0.2
17.4 +/- 0.2
2MIN
4.3 +/- 0.4
1.4
GF-38
(1)
20.4 +/- 0.2
16.7
(3)
(1) GATE
(3) DRAIN
(2)
2.4 +/- 0.2
0.1 +/- 0.05
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Ratings Unit
VGDO Gate to drain voltage -15 V
VGSO Gate to source voltage -15 V
ID Drain current 30 A
IGR Reverse gate current -60 mA
IGF Forward gate current 126 mA
PT Total power dissipation 125 W
Tch Channel temperature 175 deg.C
Tstg Storage temperature -65/+175 deg.C
*1 : Tc=25 deg.C
ELECTRICAL CARACTERISTICS
Symbol Parameter Test conditions
IDSS Saturated drain current VDS=3V, VGS=0V - 20 - A
Gm Transconductance VDS=3V, ID=6.4A - 8.0 - V
VGS(off)
P1dB
GLP Linear power gain VDS=10V, ID(RF off)=8.0A, f=6.4-7.2GHz 7 8 - dB
PAE Power added efficiency - 35 - %
IM3 3rd order IM distortion *1 -42 -45 - dBc
Rth(ch-c) Thermal resistance *2 Delta Vf method - - 1.0 deg.C/W
*1 : item -51,2 tone test,Po=34.5dBm Single Carrier Level,f=7.2GHz,Delta f=10MHz *2 : Channel-case
Gate to source cut-off voltage
(Ta=25 deg.C)
(Ta=25 deg.C)
Limits Unit
Min. Typ. Max.
VDS = 3V , ID = 120mA - - -5 V
44.5 45 - dBm
MITSUBISHI
TYPICAL CHARACTERISTICS (Ta=25deg.C)
PRELIMINARY
LINEAR POWER GAIN GLP(dB)
POWER ADDED EFFICIECY PAE (%)
OUTPUT POWER Po (dBm S.C.L.)
Notice: This is not a final specification.
Some parametric limits are subject to change.
27-March'98
MITSUBISHI SEMICONDUCTOR <GaAs FET>
6.4-7.2GHz BAND 32W INTERNALLY MATCHED GaAs FET
P1dB ,GLP vs. f
47
VDS=10(V)
IDS=8(A)
46
45
44
43
42
6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 7.1 7.2 7.3
44
VDS=10(V)
IDS=8(A)
f=7.2(GHz)
40
Delta f=10(MHz)
36
P1dB
GLP
FREQUENCY f(GHz)
Po,IM3 vs.Pin
Po
0
-10
-20
Po , PAE vs. Pin
12
11
10
9
8
7
50
VDS=10(V)
IDS=8(A)
f=6.8(GHz)
45
40
35
OUTPUT POWER Po(dBm)
30
25
20 25 30 35 40 45
INPUTPOWER Pin(dBm)
Po
PAE
50
40
30
20
10
0
32
28
IM3
24
20
16
18 20 22 24 26 28 30 32 34 36
INPUT POWER Pin (dBm S.C.L.)
-30
-40
-50
-60
-70
S PARAMETERS (Ta=25deg.C,VDS=10V,ID=8.0A)
S Parameters (TYP.)
f S11 S21 S12 S22
(GHz) Magn. Angle(deg.) Magn. Angle(deg.)
6.4 0.66 100 2.39 -106
6.5 0.61 84 2.43 -122
6.6 0.56 70 2.47 -138
6.7 0.50 57 2.54 -154
6.8 0.43 42 2.59 -170
6.9 0.35 27 2.66 173
7.0 0.24 12 2.73 155
7.1 0.15 1 2.75 143
7.2 0.01 -10 2.72 123
Magn.
0.057
0.065
0.071
0.079
0.088
0.095
0.101
0.105
0.109
Angle(deg.)
-171
174
160
145
131
116
100
88
70
Magn.
0.32
0.34
0.35
0.35
0.34
0.31
0.27
0.24
0.20
Angle(deg.)
74
64
52
40
27
12
-8
-27
-61
MITSUBISHI