Bunch-by-bunch front/back end systems from Dimtel, Inc. currently exist in several versions: FBE-178L, FBE-500L, and FBE-500LT. LT variant has three front-end channels for full three planes of feedback. Differing specifications are indicated in the table below, when appropriate.
General
Parameter
FBE-178L
FBE-500L
FBE-500LT
Reference frequency (MHz)
178.55
500
RF input level (dBm)
0
Reference output loss (dB)
3.5
6.5
Front-end
Parameter
FBE-178L
FBE-500L
FBE-500LT
Detection frequency (MHz)
1428.4
1500
Maximum operating input level (V peak)
9.3
Absolute maximum input level (V peak)
14
Attenuation range (dB)
0–31.5
Nominal output
190 mV peak-to-peak (-10.4 dBm)
780 mV peak-to-peak (+1.8 dBm)
Output filter
5th order Bessel low-pass
3 dB bandwidth (MHz)
140
500
Baseband pulse width (ns)
3.8
1.9
Phase shifter range (deg)
>360
Phase shifter resolution (deg/step)
0.25
Back-end
Parameter
FBE-178L
FBE-500L
FBE-500LT
Carrier frequency (MHz)
892.75
1000
1000 or 1500
Input level (mV)
±250
Attenuation range (dB)
0–31.5
Maximum output level (Vin=250 mV, 0 dBm ref.) (dBm)
4.5
10
Output filter
3rd order Bessel low-pass
5th order Bessel band-pass
3 dB bandwidth (MHz)
1130
660
Phase shifter range (deg)
>360
Phase shifter resolution
0.01–0.21
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products/specs/fbe.txt · Last modified: 2011/07/05 05:36 by dimtel