ZLNB100
DESCRIPTION
The ZLNB101 dual polarisation switch controller is one of a wide range of satellite receiver LNB support circuits. It features two pletely independent channels, each providing two logic outputs under the control of a voltage sensitive input. It is intended for use in Twin LNB designs, replacing many d Iscrete ponents to save both manufacturing cost and PCB size whilst improving reliability. The two inputs of the ZLNB101 have a nominal threshold of 14.5V. Their threshold is temperature pensated to minimise drift. Each features a low and stable input current that enables transient protection to be achieved with the addition of only a single resistor per channel. Normal and an inverted outputs are provided for each input. All outputs can source 15m A and sink 10m A making them suitable to drive TTL and CMOS logic, pin diodes and for IF-amp supply switching.
The ZLNB101 operates from a single supply of between 5-12V. Its quiescent current is typically only 4m A and this...
