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MRFA2604 Datasheet

  • MRFA2604

  • RF POWER AMPLIFIER

  • 8頁(yè)

  • MOTOROLA   MOTOROLA

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MRFA2604/D
The RF Line
Broadband R.F. Array for
TV Transmitter
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鈥損ull transistors.
The MRFA2604 includes a thermal compensation (differential gain is
constant versus average picture level (APL)) which can be partially discon-
nected.
鈥?/div>
Specified 28 Volts, 470鈥?60 MHz Characteristics
Output Power = 175 Watts (CW)/230 Watts (Video)
Minimum Gain = 8.0 dB (@ Nominal Power)
鈥?/div>
50
鈩?/div>
Input and Output Impedance
鈥?/div>
Class AB Operation
鈥?/div>
Thermally Compensated
MRFA2604
230 W PEAK SYNC.
470 鈥?860 MHz
CLASS AB
RF POWER AMPLIFIER
CASE 439鈥?1, STYLE 1
MAXIMUM RATINGS
Rating
Supply Voltage
Current
Storage Temperature Range
Operating Temperature (1)
Symbol
VCC
Imax
Tstg
Top
Value
32
15
鈥?40 to +100
鈥?20 to + 70
Unit
Vdc
Adc
擄C
擄C
NOMINAL OPERATION CONDITION
Supply Voltage/Quiescent Current (2)
VCC = 28 V
IQ = 0.9 A
ELECTRICAL CHARACTERISTICS IN CW
(TC = 25擄C, VCC = 28 V, IQ = 0.5 A, without thermal correction)
Characteristic
Instantaneous Bandwidth
Power Gain (Pout = 175 W)
Gain Ripple (Pout = 175 W)
Output Power @ 1.0 dB Compression
Efficiency (Pout = 175 W)
Input Return Loss
Symbol
BW
Gp
Grple
Pout
畏
IRL
Min
470
8.0
鈥?/div>
175 (3)
45 (3)
鈥?/div>
Typ
鈥?/div>
9.0
鹵
0.5
190
50
鈥?20
Max
860
鈥?/div>
鹵
1.0
鈥?/div>
鈥?/div>
鈥?5
Unit
MHz
dB
dB
W
%
dB
ELECTRICAL CHARACTERISTICS IN VIDEO
(TC = 25擄C, Isup = 0.9 A, with thermal compensation)
Characteristic
Output Power @ 28 V (Peak Sync. B/G standard)
Power Gain @ black level (Psync = 230 W, VCC = 28 V)
(2) Tuned in the factory for optimum thermal correction @ 25擄C.
(3) Thermal correction cannot be disconnected, and CW performances are slightly affected (鈥?5.0 W, 鈥?3% typical), but output power with a
video signal remain the same.
Symbol
Pout
Gp
Min
230
8.0
Typ
240
9.0
Max
鈥?/div>
鈥?/div>
Unit
W
dB
(1) Temperature is measured at temperature test point (on the flange of the transistor).
REV 1
漏
Motorola, Inc. 1997
MOTOROLA RF DEVICE DATA
MRFA2604
1

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