polyfet rf devices
MADK21
Power RF Amplifiers
Power =
Bandwidth =
Gain =
Vdd =
to
50 ohms Input/Output Impedance
Description
The MADK21 is a 5 Watt, 2 stage high gain
amplifier module covering a bandwidth of
30-88 Mhz. This compact module design is
suitable for military applications in a rugged
environment. A VAGC pin is provided to
control the output power of the module.
Absolute Maximum Ratings
o
Parameter
Symbol
Value
Unit
DC supply Voltage 1
VDD1
V
17.0
DC supply Voltage 2
VDD2
V
Input Power
Pin
W
0.02
Output Power
Pout
W
10.0
Operating Case Temp.
Tc
C
-20 to +85
Storage Temperature
Tstg
o
-30 to +100
Electrical Characteristics: (
o
12.5 Volts )
Parameter
Symbol
Min
Unit
Frequency Range
BW
Mhz
30
Outut Power
Po
Watts
5.0
Power Gain
PG
dB
25.0
Total Efficiency
h
%
35
2nd Harmonics
dso
dBc
Intermod - 2 tone
Ip3
dBm
Max
88
Typical
Test Conditions
50 ohm load
Idq =
-29.00
@ Pout =
@ Pout =
@ Pout =
Watts
Watts
W. Freq =
Mhz
0.65
Amps
5.0
5.0
5.0
59
Freq =
Mhz;
59
Load Mismatch Tolerance
VSWR
10:1
Relative
All Phase Angles
POLYFET RF DEVICES
1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 URL:www.polyfet.com
REVISION
01/17/2006
5.0
30
88 Mhz
25.0
12.5 Volts
dB
Watts
(T= 25 C)
T=25 C Zs=Zl=50 ohms. Vdd=
W
AvePwr=
C
o
AGC Voltage
VAGC
V
7.00
MADK21
MADK21 F=88MHz Vds=12.5Vdc
VAGC=5V
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
8
9 10
Pin in MilliWatts
28.0
28.2
28.4
28.6
28.8
29.0
29.2
29.4
29.6
29.8
30.0
Pout
Gain
MADK21 F=30MHz Vds=12.5Vdc
VAGC=5V
0
1
2
3
4
5
6
7
8
0 1 2 3 4
5 6 7 8 9 10
Pin in MilliWatts
28.0
29.0
30.0
31.0
32.0
Pout
Gain
Efficiency @ 5W =36%
MADK21 F=50MHz Vds=12.5Vdc Pin=5mW
0
1
2
3
4
5
6
7
8
9
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VAGC
0
5
10
15
20
25
30
35
Pout
Gain
MADK21 F=30MHz Vds=12.5Vdc VAGC=5V
0
1
2
3
4
5
6
7
8
9
10
11
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VAGC
0
5
10
15
20
25
30
35
Pout
Gain
POLYFET RF DEVICES
1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 URL:www.polyfet.com
REVISION 01/17/2006
MADK21 Harmonics Vds=12.5Vdc
Pout=5W
-40
-35
-30
-25
-20
-15
-10
-5
0
30
40
50
60
70
80
90
FREQ Mhz
2nd Harm
3rd Harm
MADK21 F=88MHz Vds=12.5Vdc Pin=5mW
0
1
2
3
4
5
6
7
8
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VAGC
0
5
10
15
20
25
30
35
Pout
Gain
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