LD7260 GHz, 2.25 FOCUSING, HIGH POWER GAIN GENERAL DESCRIPTI

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LD7260 GHz, 2.25 FOCUSING, HIGH POWER GAIN GENERAL DESCRIPTI

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HIGH POWER TRAVELING WAVE TUBE COMMUNICATIONS
LD7260
GHz, 2.25 FOCUSING, HIGH POWER GAIN
GENERAL DESCRIPTION
LD7260 PPM-focused traveling wave tube designed final amplifiers earth-tosatellite communications transmitter. This capable delivering output power 2.25 over range 5.85 6.425 provides power gain rated output power. This equipped with dual-stage depressed collector enhancing overall efficiency. Furthermore, this rugged reliable design offering long-life service.
FEATURES
Lightweight, Compact Efficient tube dual-depressed collectors designed operate high efficiency across power output range. features state-of-the-art techniques optimize size efficiency. Distortion Distortion very important factor multiplex digital signals transmission. developed techniques correction non-linear distortion phase generated TWT. result, optimum performance across broad power range ideally suited multi-carrier transmission systems. Rugged Construction power gain designed rugged, therefore suitable transportable systems. Long Life High Stability tube employs advanced impregnated cathode with operating temperature long life. Micro-discharge Free tube carefully designed free from microdischarge electron long term operation, therefore suitable digital communication service.
safe microwave tubes, refer document "Safety instructions personnel handling electron tubes" (ET0048EJVUM00)
information this document subject change without notice.
Document ET0478EJ1V0DS00 Date Published September 1999 Printed Japan
1999
LD7260
GENERAL CHARACTERISTICS
ELECTRICAL Frequency 5.850 6.425 Output Power 2.25 Heater Voltage Heater Current Type Cathode Indirectly heated, Impregnated Cathode Warm-up Time MECHANICAL Dimensions Outline Weight approx. Focusing Periodic Permanent Magnet Mounting Position Electrical Connections Receptacle Connections Input Type Female Output Mates with CPR-137F Flange Cooling Forced
ABSOLUTE RATINGS (Note
ELECTRICAL Heater Voltage Heater Surge Current Heater Current Heater Warm-up Time Helix Voltage Helix Current Collector-1 Voltage Collector-1 Current Collector-2 Voltage Collector-2 Current Cathode Current Drive Power Load VSWR ENVIRONMENTAL Operating Temperature Storage Temperature Min. Max. Unit Min. 12.0 Max. 16.0 25.0 11.0 1000 Unit
DATA SHEET ET0478EJ1V0DS00
LD7260
TYPICAL OPERATION (Note
Unit Frequency Output Power Heater Voltage (Note Heater Current Helix Voltage Helix Current Collector-1 Voltage Collector-1 Current Collector-2 Voltage Collector-2 Current Cathode Current Power Gain Gain Variation Gain Slope 2.25 5.850-6.425 2.25 15.0 9.75 5.25 0.01 dB/MHz deg./dB deg./dB
AM-PM Conversion 2.25 Order Intermodulation (two equal carries, total)
Note Absolute rating should exceeded under continuous transient conditions. single absolute rating limitation simultaneous operation more than absolute rating possible. Note tube body ground potential operation. Note voltages referred cathode potential except heater voltage. Note optimum operating parameters shown test performance sheet each tube. Note These characteristics operating values changed result additional information product improvement. should consulted before using this information equipment design. This data sheet should referred contractual specification.
DATA SHEET ET0478EJ1V0DS00
LD7260
LD7260 OUTLINE (Unit
No.8-32 UNC-2B DEEP MAX. PLACES) 135.6±0.8 No.8-32 UNC-2B 6.35 DEEP MIN. PLACES-OPPOSITESIDE) OUTPUT CPR-137F FLANGE WITH No.10-32 UNF-2B THREADED HOLES 126.5±1
50.8 101.6 31.8 327.05 108±
THERMAL SWITCH CONNECTOR DEUTCH DN9601-3P
50.8±0.8 101.6±0.5 98.5±0.8
HANDLE
101.6
24.1 MAX.
76.2 17.5±0.8
185.6
203.2
176.3
304.8
406.4
MAX.
12.7
238.2
139.7
NO.6-32 UNC-2B DEEP MIN. PLACE)
66.5
INPUT TYPE FEMALE CAPTIVE FIXING SCREWS No.8-32 UNC-2A PLACE) 18.3±0.8
HELIX (GROUND) WITH NUTS 6.35±0.5 5.6±0.8 18.3±0.8 69.1±0.5
COLLECTOR-2 COLLECTOR-1 HEATER CATHODE
H.V. CONNECTOR RECEPTACLE 22.4 (0.88) ENGAGEMENT HEATER
87.4±0.8 106.6±1.5
DATA SHEET ET0478EJ1V0DS00
165.1
LD7260
DATA SHEET ET0478EJ1V0DS00
LD7260
part this document copied reproduced form means without prior written consent Corporation. Corporation assumes responsibility errors which appear this document. Corporation does assume liability infringement patents, copyrights other intellectual property rights third parties arising from device described herein other liability arising from such device. license, either express, implied otherwise, granted under patents, copyrights other intellectual property rights Corporation others. While Corporation been making continuous effort enhance reliability electronic components, possibility defects cannot eliminated entirely. minimize risks damage injury persons property arising from defect electronic component, customers must incorporate sufficient safety measures design, such redundancy, fire-containment, anti-failure features. devices classified into following three quality grades: "Standard", "Special", "Specific". Specific quality grade applies only devices developed based customer designated "quality assurance program" specific application. recommended applications device depend quality grade, indicated below. Customers must check quality grade each device before using particular application. Standard: Computers, office equipment, communications equipment, test measurement equipment, audio visual equipment, home electronic appliances, machine tools, personal electronic equipment industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment medical equipment (not specifically designed life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems medical equipment life support, etc. quality grade devices "Standard" unless otherwise specified NEC's Data Sheets Data Books. customers intend devices applications other than those specified Standard quality grade, they should contact sales representative advance. Anti-radioactive design implemented this product.

LD7260 GHz, 2.25 FOCUSING, HIGH POWER GAIN GENERAL DESCRIPTI

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