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ZLNB2003

Zetex Semiconductors
Part Number ZLNB2003
Manufacturer Zetex Semiconductors
Description DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER
Published Apr 16, 2005
Detailed Description DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER ISSUE 1- NOVEMBER 1998 DEVICE DESCRIPTION The ZLNB200X dual polar...
Datasheet PDF File ZLNB2003 PDF File

ZLNB2003
ZLNB2003

Overview
DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER ISSUE 1- NOVEMBER 1998 DEVICE DESCRIPTION The ZLNB200X dual polarisation and tone switch controller is one of a wide range of satellite receiver LNB support circuits available from Zetex.
It features two completely independent channels, each providing logic outputs to control LNB polarisation selection, local oscillator selection and downfeed disable.
It is intended for use in Twin Universal LNBs, replacing many discrete components to save both manufacturing cost and PCB size whilst improving reliability.
The two polarisation control inputs of the ZLNB200X have a nominal threshold of 14.
75V.
The threshold is temperature compensated 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.
Twin Universal LNBs can be called to operate with one of their controlling receivers powered down/disconnected, with attendant cable mi...


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