Ultra nízkošumový předzesilovač 225-400 MHz, s vysokou odolností
pro vnitřní použití

šumové číslo 1dB
zisk 20dB
IP3 +44dBm

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The high linear preamplifier KU LNA BB2240 A is designed for the UHF communications band.
It features best large signal performance and a low noise figure. Internally it uses 3dB hybrids for input and output coupling.
This leads to good input return loss, output return loss and high third order intercept point (IP3).
The preamplifier contains a bias-T for remote power supply via coaxial cable and a solder pin for direct power supply.

Frequency range 225..400 MHz
Noise figure @ 18 °C typ. 1.0 dB, max. 1.2 dB NF
Gain min. 20 dB
Gain flatness max. +/- 2.5 dB
Maximum input power 100 mW
Output power (P1dB) typ. 630 mW (+28 dBm)
Output power (Psat) min. 1000 mW (+30 dBm)
Output IP3 typ. 44 dBm
Input return loss (S11) typ. 15 dB, min. 11 dB
Output return loss (S22) typ. 15 dB, min. 11 dB
Supply voltage +12 ... 15 V DC
Current consumption typ. 400 mA
Operating case temp. range -20 ... +55 °C
Input connector / impedance SMA-female, 50 ohms
Output connector / impedance SMA-female, 50 ohms
Case milled aluminium
Dimensions (mm) 78 x 41 x 22
Weight 100 g (typ.)