polyfet rf devices
Power RF Amplifiers
Power =
25 Watts
450 to 480 Mhz
Vdd = 28 Volts
Bandwidth =
Gain =
45 dB
PHM004
50 ohms Input/Output Impedance
Description
The PHM004 is a high gain high power
amplifier design for the Tetra frequency
range. It has four stages and uses the latest
Ldmos technology transistors. The amplifier
has very high gain and high efficiency and
has a IP3 of 55 dBm
Absolute Maximum Ratings ( T = 25 C)
Parameter
DC supply Voltage 1
DC supply Voltage 2
Input Power
Output Power
Operating Case Temp.
Storage Temp.
Symbol
Value
Unit
32
VDD1
V
6.5
V
VDD2
0.005
Pin
W
30
Pout
W
o
Tc
-20 to +70
C
o
Tstg
-30 to +100
C
o
o
Electrical Characteristics: ( T = 25 C Zs=Zl=50 ohms. Vdd = 28 Volts )
Parameter
Frequency Range
Output Power
Power Gain
Total Efficiency
2nd Harmonics
Intermod - 2 tone
Load MismatchTolerance
DC supply Voltage 2
Symbol
BW
Po
PG
Min
450
25
45
40
-55
55
Typical
Max
480
畏
dso
Ip3
VSWR
VDD2
10:1
5.50
6.5
Unit
Mhz
Watts
dB
%
dBc
dBm
Relative
V
Test Conditions
50 ohm load
Idq =
0.75
Amps
@ Pout =
25
Watts
@ Pout =
25
Watts
@ Pout =
25
W. Freq =
465
Mhz
Freq =
465
Mhz
All Phase Angles
POLYFET RF DEVICES
Revision Date 10/10/98
1110 Avenida Acaso, Camarillo, CA 93012 TEL:(805) 484-4210 FAX:(805) 484-3393 EMAIL:Sales@polyfet.com URL:www.polyfet.com
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