有关先进卫星机顶盒设计的ISL6421A单LNB控制器I2C接口

ISL6421A Single LNB Controller with I2C Interface for Advanced Satellite Set-Top Box Designs
ISL6421A Single LNB Controller with I2C Interface

for Advanced Satellite Set-Top Box Designs
Application Note January 2, 2007 AN1161.2



Introduction The “universal” LNB switches the polarization by looking at
the voltage that it receives from the receiver.
Communication Satellite Frequency Allocation 12V - Horizontal, 18V - Vertical
Communication satellites operate within two fre