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VZU-6991K4 Datasheet(PDF) 3 Page - Communications & Power Industries, Inc. |
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VZU-6991K4 Datasheet(HTML) 3 Page - Communications & Power Industries, Inc. |
3 / 4 page Options A Input Isolator: Inserted between the input and the TWT. Input VSWR is reduced to less than 1.5:1. B Input RF Attenuator: 20 dB continuous variation of RF gain. This attenuator is connected after the input isolator. C Harmonic Filter: Inserted after the output isolator. The amount of filtering depends upon the harmonic frequency relative to the upper band edge. Frequency Attenuation Relative to upper band edge (Typical) 0.95 0.35 dB to 18 GHz 1.00 0.35 dB to 8 GHz 0.45 dB to 18 GHz 1.05 3 dB 1.20 30 dB 1.35 and above 60 dB D Output Isolator: Inserted immediately following the TWT to isolate it from load mismatches. The result is improved gain flatness vs. frequency and protection of the TWT. The output VSWR is reduced to 1.5:1 typically. Max. is 2.0:1. E RF Output Sample Port: -30 dB nominal directional coupler added at the output following the output isolator (-35 dB nominal for the VZV 2776K4). It is brought to the front panel via a Type N connector. F Chassis Slides G Remote Control: Rear Panel connector providing remote control of Mains Power ON/OFF, High Voltage ON/OFF – FAULT RESET and External Interlock. Mains Power ON requires +12 volts at 30 mA from an external power supply. High Voltage ON/OFF is a contact closure to ground. External Interlock is a contact closure which must be closed for the amplifier to operate. All Front Panel status indications are brought to this connector via open collector transistor outputs to ground rated at 14 Volts max. collector to emitter at 30 mA max. H Elapsed Time Meter J Rear RF Connectors K 230 Vac Mains Prime Power L Solid State Input Pre-Amplifier: Inserted between the RF attenuator and the TWT. Raises the overall gain so that at least 0 dBm will produce rated power output. Q 100 Vac Mains Prime Power U SMA Adapters Note 1 The incorporation of all microwave options reduces the overall gain of the amplifier by the sum total of the insertion losses. (See Table 1.) Note 2 The incorporation of all microwave options at the output reduces the maximum power delivered to the output connector by the sum total of the insertion losses. (See Table 1.) Table 1 Insertion Loss (dB) for Various Microwave Option Configurations Frequency Range (GHz) 4-8 8-12.4 12.4-18 8-18 4-18 Loss Affects Pwr Gain Pwr Gain Pwr Gain Pwr Gain Pwr Gain Option Description A Input Isolator – 0.6 – 0.6 – 0.6 – 0.6 – 2.5 B RF Gain Adjust – 1.0 – 1.0 – 1.0 – 1.5 – 1.0 C Harmonic Filter 0.45 0.45 0.45 0.45 0.45 0.45 0.45 0.45 – N/A D Output Isolator 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 – N/A E RF Sample Port 0.4 0.4 0.4 0.4 0.6 0.6 0.5 0.5 0.8 0.8 J Rear Connector 0.4 0.4 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 Note: Characteristics and operating values are based on performance tests. These figures may change without notice as a result of additional data or product refinement. Please contact CPI before using this information for system design. |
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