3

LD7213, LD7213L

TYPICAL OPERATION (Note 2, 3 and 5)

Frequency ………………………………………………

LD7213 : 14.0 to 14.5 GHz

LD7213L : 13.75 to 14.5 GHz

Outoput power …………………………………………

300

W

Heater Voltage (Note 4) ………………………………

6.1

V

Heater Current …………………………………………

1.05

A

Helix Voltage ……………………………………………

8.4

kV

Helix Current ……………………………………………

3

mA

Collector Voltage ………………………………………

4

kV

Cathode Current ………………………………………

230

mA

Power Gain

at 15 W ………………………………………………

58

dB

at 300 W

……………………………………………

55

dB

Gain Variation (at 15 W) ………………………………

LD7213 : 1.5 dB / 500 MHz

LD7213L : 1.5 dB / 750 MHz

Gain Slope (at 15 W) …………………………………

0.01

dB/MHz

AM-PM Conversion

at 15 W ………………………………………………

0.7

˚/dB

at 300 W

……………………………………………

3

˚/dB

3rd Order Intermodulation

(two equal carriers, 20 W total) ……………………

–30

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.