Products

Products

Miniature VHF Digitally Tuned Filters

LBM043-512US

Features

Tuning control:10 bit parallel (TTL compatible)
Cascaded 2 pole 0.1dB chebyshev response
Tuning speed≤10us

Operating Temperature: -40℃~+85℃

VHF frequency range(30-512MHz)
Small package

Specification

Tuning Range 30 ~ 512MHz
3dB Bandwidth(%) 6 -8%

Fractional BW variance1) ≤1%
I.L at Center frequency2) 4.5 -5.5dB
Shape Factor(BW30 /BW3 ) ≤7:1

Impedance 50Ω
Maximum VSWR 2.0:1 @f0
Input P-13) 30dBm
DC power4) +3V/120mA,+100V/1mA

Note:
1) This is the difference of % 3dB bandwidth within the frequency band.
2) Insertion loss at center frequency is typical one, the wider passband the lower IL. Following method used to calculate insertion loss not including the switching loss: IL×BW3dB%=20~25. For example % BW is 5% then IL is 4~5dB , Loss of switch is about 3dB.
3) Decided by the bias voltage.
4) Current saving mode available, which can low the current down to 90mA.

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