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ZLNB2013
The following diagram shows a typical block diagram
for a twin universal LNB design. The ZLNB2013 device
provides the two polarity and two tone switches
Additionally the front end bias requirements of the LNB
are provided by the ZNBG fixed bias range offering a
very efficient and cost effective solution
required to decode the two independent receiver feeds.
The device is also able to detect the absence of a
revceiver 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.
Control Input
Horizontal Gain Stage
Antenna GaAs/HEMTFET
High Band
+
<=13V-Horizontal
>=14.5V-Vertical
High Band
DC Input
13-25V
Horizontal
1
3
Mixer
Low Band
H/V Output 1
+
Low Band
Horizontal
ASTRA
10.95 GHz-11.7 GHz
Standard Band
10.7 GHz-11.8 GHz
Enhanced Band
Bias Generator
ZNBG Series
ZLNB2013
Dual H/ V Switch
&
22kHz Switch
Control
PIN
Diode
MUX
IF down feed
950-1750 MHz
- Standard Band
950-2050 MHz
- Enhanced Band
High Band
+
High Band
2
4
Mixer
Vertical
H/V Output 2
Low Band
Vertical
Antenna
Gain Stage
GaAs/HEMTFET
+
Low Band
Vertical
ISSUE 1 - AUGUST 2005
5
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ZLNB2016 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:STANDARD DBS DUAL CHANNEL VOLTAGE AND TONE DETECTOR
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