LNBH23
LNBs supply and control IC with step-up and I²C interface
Features
■ Complete interface between LNB and I²C bus
■ Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ.
93% @ 0.
75 A), with integrated NMOS
■ Selectable output current limit by external resistor
■ Compliant with main satellite receiver systems specifications
■ New accurate built-in 22 kHz tone generator suits widely accepted standards (patent pending)
■ Fast oscillator start-up facilitates DiSEqC™ encoding
■ Built-in 22 kHz tone detector supports bidirectional DiSEqC™ 2.
0
■ Very low-drop post
regulator and high efficiency step-up PWM with integrated power NMOS allow low power losses
■ Two o...