LBM017A~LBM1000A Digitally tuned Hopping filter
Frequency range: 1.5~1000MHz
Features
Tuning Control: 8 bit parallel(TTL Level compatible)
Wide dynamic: Input P-1=30dBm
2 ploe 0.1dB Chebyshev Response
Tuned speed ≤10us(fc>30MHz)
Up to 250 steps (Fc<120MHz) in band
Typical 2~3 octave bnadwidth coverage within 30~700MHz
High bias boltage low bias current(100V/1.5mA)
Package: Pins or SMA connector
Small DIP package
Operating Temperature range: – 40℃~+85℃
Specification
%3dB Bandwidth 3 ~10%
Fractional BW ripple1) ≤1%
I.L at center frequency 2) 2~6dB
I.L variance3) ≤2dB
Shape Factor (BW30 /BW3) ≤7:1
Impedance 50Ω
VSWR 2.0:1max
Input P-1 +17dBm(TYP)
DC power 5V/90mA , Vbb: +30V/18mA
Note:
1) This is the difference of %3dB bandwidth within the frequency band, see page 66 for typical curves.
2) Insertion loss at center frequency is typicalone, the wider passband the lower IL. Following method is used to
calculate insertion loss: IL×BW3dB%=20~25, for example %BW is 5% then IL is 4~5dB.
3) See typical curves on page 66.