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ZLNB2006 Datasheet(PDF) 6 Page - Zetex Semiconductors

Part No. ZLNB2006
Description  DUAL TONE AND POLARITY SWITCH LNB MULTIPLEX CONTROLLER
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Maker  ZETEX [Zetex Semiconductors]
Homepage  http://www.diodes.com/
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ZLNB2006 Datasheet(HTML) 6 Page - Zetex Semiconductors

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ZLNB2006
ZLNB2009
ZLNB2010
The following diagram shows a typical block diagram
for a twin universal LNB design. The ZLNB2006/09/10
group of devices provides the two polarity and two
tone switches required to decode the two independent
receiver feeds. The ZLNB2009/10 devices are also able
to detect the absence of receiver connection to either
port of the LNB providing all outputs to go high hence
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 ZNBG4000 or ZNBG6000 offering a
very efficient and cost effective solution
ISSUE 1 - APRIL 2002
6
Bias Generator
ZNBG40XX
Series
ZLNB20XX Series
Dual H/V Switch
&
22kHz Switch
Vertical
Antenna
Horizontal
Antenna
Gain Stage
GaAs/HEMTFET
Gain Stage
GaAs/HEMTFET
1
4
2
IF down feed
950-1750 MHz
- Standard Band
950-2050 MHz
- Enhanced Band
H/V Output 2
H/V Output 1
3
Control Input
<=13V-Horizontal
>=14.5V-Vertical
Control
High Band
Horizontal
Low Band
Horizontal
High Band
Vertical
Low Band
Vertical
PIN
Diode
MUX
DC Input
13-25V
ASTRA
10.95 GHz-11.7 GHz
Standard Band
10.7 GHz-11.8 GHz
Enhanced Band
+
+
Mixer
+
+
Mixer
Low Band
Low Band
High Band
High Band


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