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参数资料
| 型号： | MRFA2604 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 衰减器 |
| 英文描述： | RF POWER AMPLIFIER |
| 中文描述： | 470 MHz - 860 MHz RF/MICROWAVE WIDE BAND HIGH POWER AMPLIFIER |
| 文件页数： | 1/8页 |
| 文件大小： | 286K |
| 代理商： | MRFA2604 |
1
MRFA2604
Motorola, Inc. 1997
The RF Line
The MRFA2604 is a solid state class AB amplifier specifically designed for TV
transposers and transmitters. This amplifier incorporates microstrip technology
and reliable Motorola push–pull transistors.
The MRFA2604 includes a thermal compensation (differential gain is
constant versus average picture level (APL)) which can be partially discon-
nected.
Specified 28 Volts, 470–860 MHz Characteristics
Output Power = 175 Watts (CW)/230 Watts (Video)
Minimum Gain = 8.0 dB (@ Nominal Power)
50
Input and Output Impedance
Class AB Operation
Thermally Compensated
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Supply Voltage
VCC
Imax
Tstg
Top
32
Vdc
Current
15
Adc
Storage Temperature Range
–40 to +100
°
C
Operating Temperature (1)
–20 to +70
°
C
NOMINAL OPERATION CONDITION
Supply Voltage/Quiescent Current (2)
VCC = 28 V
IQ = 0.9 A
ELECTRICAL CHARACTERISTICS IN CW
(TC = 25
°
C, VCC = 28 V, IQ = 0.5 A, without thermal correction)
Characteristic
Symbol
Min
Typ
Max
Unit
Instantaneous Bandwidth
BW
470
—
860
MHz
Power Gain (Pout = 175 W)
Gain Ripple (Pout = 175 W)
Output Power @ 1.0 dB Compression
Gp
Grple
Pout
η
8.0
9.0
—
dB
—
±
0.5
±
1.0
dB
175 (3)
190
—
W
Efficiency (Pout = 175 W)
Input Return Loss
45 (3)
50
—
%
IRL
—
–20
–15
dB
ELECTRICAL CHARACTERISTICS IN VIDEO
(TC = 25
°
C, Isup = 0.9 A, with thermal compensation)
Characteristic
Symbol
Min
Typ
Max
Unit
Output Power @ 28 V (Peak Sync. B/G standard)
Pout
Gp
230
240
—
W
Power Gain @ black level (Psync = 230 W, VCC = 28 V)
(1) Temperature is measured at temperature test point (on the flange of the transistor).
(2) Tuned in the factory for optimum thermal correction @ 25
°
C.
(3) Thermal correction cannot be disconnected, and CW performances are slightly affected (–5.0 W, –3% typical), but output power with a
video
signal remain the same.
8.0
9.0
—
dB
Order this document
by MRFA2604/D
SEMICONDUCTOR TECHNICAL DATA
230 W PEAK SYNC.
470–860 MHz
CLASS AB
RF POWER AMPLIFIER
CASE 439–01, STYLE 1
REV 1
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