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AN3352 Scheda tecnica(PDF) 4 Page - STMicroelectronics

Il numero della parte AN3352
Spiegazioni elettronici  Dual LNB power supply based on the LNBH24L
PDF  26 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3352 Scheda tecnica(HTML) 4 Page - STMicroelectronics

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List of figures
AN3352
4/26
Doc ID 018526 Rev 3
List of figures
Figure 1.
LNBH24L internal block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2.
EXTM example of use with 22 kHz IC controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3.
DiSEqC 1.X tone burst with 22 kHz IC controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4.
DiSEqC timing control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5.
LNBH24L pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6.
LNBH24L typical application circuit with internal tone generator . . . . . . . . . . . . . . . . . . . . 11
Figure 7.
Typical output current limiting vs. RSEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8.
Example of LNBTVS diode connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 9.
DC-DC converter output stage with ferrite bead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 10.
Application circuit with PDC optional solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 11.
PDC optional circuit load calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 12.
PDC circuit waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 13.
Tone amplitude vs. R9 value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 14.
PBC top layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 15.
PBC bottom layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 16.
PCB components layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 17.
PCB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24



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