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LNBH23 - LNBs supply/controller

LNBH23 Description

LNBH23 LNBs supply and control IC with step-up and I²C interface .
Intended for analog and digital satellite receivers/sat-TV, sat-PC cards, the LNBH23 is a monolithic voltage regulator and interface IC, assembled in.

LNBH23 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 specification

LNBH23 Applications

* activated by DSQIN pin or by the TEN bit, the VoTX pin must be preventively set ON by the TTX function. This can be controlled both through the TTX pin and by I²C bit. As soon as the tone transmission is expired, the VoTX must be disabled by setting the TTX to LOW to set the device in the 22 kHz re

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LNBs supply controller STMicroelectronics
STMicroelectronics LNBH23-like datasheet