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LD7217 Fiches technique(PDF) 3 Page - NEC |
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LD7217 Fiches technique(HTML) 3 Page - NEC |
3 / 4 page 3 LD7217 SERIES TYPICAL OPERATION (Note 2, 3 and 6) LD7217S LD7217, LD7217W Unit Frequency …………………………………………… 5.85 to 6.425 5.85 to 6.425, 5.85 to 6.65 GHz Output Power ……………………………………… 600 700 W Heater Voltage (Note 4) …………………………… 6.3 6.3 V Heater Current ……………………………………… 1.7 1.7 A Helix Voltage ………………………………………… 11.0 11.2 kV Helix Current ………………………………………… 6.0 3.0 mA Anode Voltage ……………………………………… 11.0 11.2 kV Anode Current ……………………………………… 0.3 0.1 mA Collector Voltage …………………………………… 6.0 6.2 kV Cathode Current …………………………………… 425 430 mA Power Gain ………………………………………… 48 (at 60 W) 57 (at 70 W) dB 45 (at 600 W) 54 (at 700 W) dB Gain Variation ……………………………………… 1.5 1.0 (LD7217) dB/ 575 MHz 1.8 (LD7217 W) dB/800 MHz Gain Slope …………………………………………… 0.01 (at 60 W) 0.015 (at 70 W) dB/MHz AM-PM Conversion ………………………………… 1.5 (at 60 W) 1.5 (at 70 W) deg./dB 3.5 (at 600 W) 3.5 (at 700 W) deg./dB 3rd Order Intermodulation (two equal carriers, 350 W total) ………………… –19 –19 dBc Air Flow ……………………………………………… 204 204 kg/hr 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 : The accelerating anode voltage should be at cathode potential for the off condition, and at helix for the full cathode current condition. The accelerating voltage should not exceed the helix voltage by 250 volts. Note 6 : 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. |
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Description similaire - LD7217 |
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