3

LD7267 SERIES

TYPICAL OPERATION (Note 2, 3, 4 and 5)

Unit

Frequency ……………………………………………

30.0

GHz

Output Power ………………………………………

100

W

Heater Voltage ( Note 4 ) …………………………

6.3

V

Heater Current ………………………………………

1.05

A

Helix Voltage

………………………………………

11.0

kV

Helix Current

………………………………………

0.5

mA

5Isolated Anode Type

Anode Voltage ………………………………………

9.0

kV

Anode Current ………………………………………

0.01

mA

5Single Collector Type

Collector Voltage ……………………………………

4.4

kV

Collector Current ……………………………………

90

mA

5Dual-stage Collector Type

Collector Voltage-1 …………………………………

4.4

kV

Collector Current-1 …………………………………

40

mA

Collector Voltage-2 …………………………………

2.2

kV

Collector Current-2 …………………………………

50

mA

Cathode Current ……………………………………

91

mA

Power Gain

at 10 W ………………………

57

dB

at 100 W ………………………

51

dB

Gain Variation

at 10 W ………………………

0.15

dB/60MHz

Gain Slope

at 10 W ………………………

0.005

dB/MHz

AM-PM Conversion

at 10 W ………………………

2.5

deg./dB

at 100 W ………………………

5.0

deg./dB

3rd Order Intermodulation ………………………

–30

dBc

(two equal carriers, 10 W total)

(two equal carriers, 20 W total)

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.