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AN2713 Scheda tecnica(PDF) 38 Page - STMicroelectronics

Il numero della parte AN2713
Spiegazioni elettronici  LNB power supply based on the LNBH23 supply
PDF  40 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2713 Scheda tecnica(HTML) 38 Page - STMicroelectronics

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Software installation
AN2713
38/40
Doc ID 14431 Rev 1
The AUX bit can be set high to force the LNBH23 output voltage to the highest voltage on
the line (22 V typ.) during the minimum current diagnostic phase, in order to detect the
output load and check the dish status or any optional devices inserted on the line.
The maximum current detected at ITEST=0 is 6 mA, while at ITEST=1 it is 12 mA.
During the minimum diagnostic current test, setting only EN=ITEST=AUX=1 is
recommended. The screenshot in Figure 38 shows the following conditions:
●
EN=1, AUX=1
●
Vout=22 V (for testing multiswitch-box dish connection)
Figure 38.
AUX activation



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