LNBK20D2 数据手册 ( 数据表 ) - STMicroelectronics

DESCRIPTION
Intended for analog and digital satellite receivers, the LNBK20D2 is a monolithic linear voltage regulator, assembled in SO-20, specifically designed to provide the powering voltages and the interfacing signals to the LNB downconverter situated in the antenna via the coaxial cable.

■ COMPLETE INTERFACE FOR TWO LNBs
   REMOTE SUPPLY AND CONTROL
■ GUARANTEED 400mA OUTPUT CURRENT
■ LNB SELECTION AND STAND-BY
   FUNCTION
■ BUILT-IN TONE OSCILLATOR FACTORY
   TRIMMED AT 22KHz
■ FAST OSCILLATOR START-UP FACILITATES
   DiSEqC ENCODING
■ TWO SUPPLY INPUTS FOR LOWEST
   DISSIPATION
■ BYPASS FUNCTION FOR SLAVE
   OPERATION
■ LNB SHORT CIRCUIT PROTECTION AND
   DIAGNOSTIC
■ AUXILIARY MODULATION INPUT EXTENDS
   FLEXIBILITY
■ CABLE LENGTH COMPENSATION
■ INTERNAL OVER TEMPERATURE
   PROTECTION
■ BACKWARD CURRENT PROTECTION
■ COST-EFFECTIVE VERSION OF LNBP
   SERIES