polyfet rf devices
MCDK21
Power RF Amplifiers
Power =
Bandwidth =
Gain =
Vdd =
to
50 ohms Input/Output Impedance
Description
The MCDK21 is a 10 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
0.05
Output Power
Pout
W
10.0
Operating Case Temp.
Tc
C
-20 to +85
Storage Temperature
Tstg
o
-30 to +100
Electrical Characteristics: (
o
12.0 Volts )
Parameter
Symbol
Min
Unit
Frequency Range
BW
Mhz
30
Outut Power
Po
Watts
10.0
Power Gain
PG
dB
25.0
Total Efficiency
h
%
30
2nd Harmonics
dso
dBc
Intermod - 2 tone
Ip3
dBm
Max
88
Typical
Test Conditions
50 ohm load
Idq =
-35.00
@ Pout =
@ Pout =
@ Pout =
Watts
Watts
W. Freq =
Mhz
1.20
Amps
10.0
10.0
10.0
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
10.0
30
88 Mhz
25.0
12.0 Volts
dB
Watts
(T= 25 C)
T=25 C Zs=Zl=50 ohms. Vdd=
W
AvePwr=
C
o
AGC Voltage
VAGC
V
7.00
MCDK21
MCDK21 F=50MHz Vds=12V Vagc=6.5V
0
1
2
3
4
5
6
7
8
9
10
11
12
0.25
0.50
1.00
2.00
3.00
4.00
6.00
8.00
10.00
15.00
20.00
Pin (mW)
Pout (W)
27.0
28.0
29.0
30.0
31.0
32.0
33.0
34.0
Gain (dB)
Efficiency @10W=38%
Gain
Pout
MCDK21 F=30MHz Vds=12V Vagc=6.5V
0
1
2
3
4
5
6
7
8
9
10
11
0.25
0.50
1.00
2.00
3.00
4.00
6.00
8.00
10.00
15.00
20.00
Pin (mW)
Pout (W)
27
28
29
30
31
32
33
34
35
Gain (dB)
Efficiency @10W=40%
Gain
Pout
MCDK21 F=30MHz Vds=12V Pin=20mW
0
1
2
3
4
5
6
7
8
9
10
11
1.5
2.0
2.5
3.0
3.5
4.0
Vagc (V)
Pout (W)
0
5
10
15
20
25
30
Gain (dB)
Efficiency @ 10W=55%
Gain
Pout
MCDK21 F=88MHz Vds=12V Vagc=6.5V
0
1
2
3
4
5
6
7
8
9
10
11
0.25
0.50
1.00
2.00
3.00
4.00
6.00
8.00
10.00
15.00
20.00
Pin (mW)
Pout (W)
27.0
27.5
28.0
28.5
29.0
29.5
30.0
30.5
31.0
31.5
Gain (dB)
Efficiency @10W=30%
Gain
Pout
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
MCDK21 Harmonics Vds=12V Vagc=5V Pout=10W
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
20
40
60
80
100
Freq Mhz
dBc
3rd
2nd
MCDK21 F=88MHz Vds=12V Pin=20mW
0
1
2
3
4
5
6
7
8
9
10
11
12
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Vagc (V)
Pout (W)
0
5
10
15
20
25
30
Gain (dB)
Efficiency @ 10W=38%
Gain
Pout
PDF 
ZIP