3

LD7246A

TYPICAL OPERATION (Note 2, 3 and 5)

Unit

Frequency ………………………………………………

13.75 to 14.5

GHz

Output Power …………………………………………

130

W

Heater Voltage (Note 4) ………………………………

4.5

V

Heater Current …………………………………………

1

A

Helix Voltage ……………………………………………

6.2

kV

Helix Current ……………………………………………

3

mA

Collector Voltage-1 ……………………………………

3.2

kV

Collector Current-1 ……………………………………

80

mA

Collector Voltage-2 ……………………………………

1.6

kV

Collector Current-2 ……………………………………

42

mA

Cathode Current ………………………………………

125

mA

Power Gain

at 6 W …………………………

58

dB

at 130 W ………………………

53

dB

Gain Variation

at 13 W ………………………

2

dB/750 MHz

Gain Slope

at 13 W ………………………

0.03

dB/MHz

AM-PM Conversion at 130 W ………………………

3.5

deg./dB

3rd Order Intermodulation

(two equal carriers, 13 W total) ……………………

–32

dBc

Efficiency

………………………………………………

38

%

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 exept 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.