MRFA2604 Datasheet, PDF (1/8 Pages) Motorola, Inc – RF POWER AMPLIFIER

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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–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 Ω Input and Output Impedance
• Class AB Operation
• Thermally Compensated
Order this document
by MRFA2604/D
MRFA2604
230 W PEAK SYNC.
470 – 860 MHz
CLASS AB
RF POWER AMPLIFIER
MAXIMUM RATINGS
Rating
Symbol
CASE 439–01, STYLE 1
Value
Unit
Supply Voltage
Current
Storage Temperature Range
Operating Temperature (1)
VCC
Imax
Tstg
Top
32
Vdc
15
Adc
– 40 to +100
°C
– 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
Instantaneous Bandwidth
BW
470
—
Power Gain (Pout = 175 W)
Gain Ripple (Pout = 175 W)
Gp
Grple
8.0
9.0
—
± 0.5
Output Power @ 1.0 dB Compression
Efficiency (Pout = 175 W)
Input Return Loss
Pout
η
IRL
175 (3)
190
45 (3)
50
—
– 20
Max
860
—
± 1.0
—
—
–15
Unit
MHz
dB
dB
W
%
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
230
240
—
W
Power Gain @ black level (Psync = 230 W, VCC = 28 V)
Gp
8.0
9.0
—
dB
(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.
REV 1
MOTOROLA RF DEVICE DATA
© Motorola, Inc. 1997
MRFA2604
1