LD7249 Ver la hoja de datos (PDF) - NEC => Renesas Technology
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LD7249 Datasheet PDF : 6 Pages
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LD7249 SERIES
TYPICAL OPERATION (Note 2, 3 and 5)
Frequency ………………………………………………
Output Power …………………………………………
Heater Voltage (Note 4) ………………………………
Heater Current …………………………………………
Helix Voltage ……………………………………………
Helix Current ……………………………………………
Collector-1 Voltage ……………………………………
Collector-1 Current ……………………………………
Collector-2 Voltage ……………………………………
Collector-2 Current ……………………………………
Cathode Current ………………………………………
Power Gain
at 20 W ………………………
at 350 W ………………………
Gain Variation
at 20 W ………………………
Gain Slope
at 40 W ………………………
AM-PM ConversioN
Less than 100 W ……………………………
at 350 W ………………………………………
3rd Order Intermodulation …………………………
(two equal carriers, 100 W total)
LD7249
14.25
350
6.3
1.2
8.6
1.5
4.3
141
2.7
94
237
62
58
0.86
0.006
0.3
2.5
–23
LD7249U
14.25
400
6.3
1.2
8.8
2.4
4.4
147
2.8
100
250
58
54
1.02
0.006
Unit
GHz
W
V
A
kV
mA
kV
mA
kV
mA
mA
dB
dB
dB / 750MHz
dB / MHz
0.3
deg./dB
2.5
deg./dB
–24
dBc
Note 1 : Absolute rating should not be exceeded under continuous or transient conditions. A single absolute
rating may be the limitation and simultaneous operation at more than one absolute rating may not be
possible.
Note 2 : The tube body is at ground potential in operation.
Note 3 : All voltages are referred to the cathode potential except the heater voltage.
Note 4 : The optimum operating parameters are shown on a test performance sheet for each tube.
Note 5 : These characteristics and operating values may be changed as a result of additional information or
product improvement. NEC should be consulted before using this information for equipment
design. This data sheet should not be referred to a contractual specification.
DATA SHEET ET0221EJ5V0DS00
3
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