The CAEN Mod. V859 is a passive dual section attenuator housed in a 1-unit VME module; the module does not require any power supply since it is made up of resistive cells. Attenuation ranges from 0 to 44.5 dB for each section (0.5 dB steps). The two section can be “cascaded” in order to obtain a single section featuring a 0÷89 dB (step: 0.5 dB) attenuation.
Each section is provided with two LEMO-00 connectors, one for the input (50 Ω impedance) and one for the output, and seven toggle switch for attenuation setting; an additional switch allows to cascade the two sections.
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LEMO connector 1U-wide LEMO connector for Mod.V859 |
Consult our connectors reference page for technical information.
Packaging 1U-wide VME unit
Number of sections 1 or 2 (toggle switch selectable)
Attenuation: dual 0÷44.5 dB; single 0÷89 dB
Resolution: 0.5 dB
Input impedance: 50 Ω
I/O delay: < 5 ns
Accuracy: 1%
Max frequency > 300 MHz
Max dissipated power (per section): 100 mW
Insertion loss: 0.1 dB