ZLNB2003Q16 View Datasheet(PDF) - Zetex => Diodes

Part Name

Description

Manufacturer

ZLNB2003Q16

DUAL TONE and POLARITY SWITCH LNB MULTIPLEX CONTROLLER

Zetex => Diodes 

ZLNB2001 ZLNB2002

ZLNB2003 ZLNB2004

The following block diagram shows a typical

block diagram twin universal LNB design.

The ZLNB200X devices provides the two

polarity and two tone switches required to

decode the two independent receiver feeds.

The devices are also able detect the absence

of a receiver connected to either port of the

LNB providing an Enable signal allowing the

disabling of the port. This allows the

avoidance of unwanted signal reflections

from an unterminated down feed cable.

Additionally the front end bias requirements

of the LNB are provided by the ZNBG4000 or

ZNBG6000 offering a very efficient and cost

effective solution.

Horizontal Gain Stage

Antenna GaAs/HEMTFET

1

3

ASTRA

10.95 GHz-11.7 GHz

Standard Band

10.7 GHz-11.8 GHz

Enhanced Band

Bias Generator

ZNBG40XX

Series

Control Input

<=13V-Horizontal

High Band >=14.5V-Vertical

+

Mixer

+

Low Band

High Band

Horizontal

Low Band

Horizontal

ZLNB20XX Series

Dual H/V Switch

&

22kHz Switch

Control

PIN

Diode

MUX

DC Input

13-25V

H/V Output 1

IF down feed

950-1750 MHz

- Standard Band

950-2050 MHz

- Enhanced Band

2

4

Vertical Gain Stage

Antenna GaAs/HEMTFET

High Band

+

Mixer

+

Low Band

High Band

Vertical

Low Band

Vertical

H/V Output 2

86

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