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LNBH221 Scheda tecnica(PDF) 2 Page - STMicroelectronics

Il numero della parte LNBH221
Spiegazioni elettronici  Dual LNB supply and control IC with Step-Up converter and I2C interface
PDF  27 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH221 Scheda tecnica(HTML) 2 Page - STMicroelectronics

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Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Typical application circuits for each section : A and B . . . . . . . . . . . . . 7
5
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1
I2C Bus Interface (one for each section) . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2
Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3
Start and stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.4
Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.5
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
5.6
Transmission without acknowledgement . . . . . . . . . . . . . . . . . . . . . . . . . .11
6
LNBH221 software description (same for both section) . . . . . . . . . . . 13
6.1
Interface Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2
System register (SR, 1 Byte) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3
Transmitted data (I2C BUS write mode) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4
Received data (I2C bus READ MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5
Power-On I2C interface reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.6
Address Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.7
DiSEqCTM Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8
Thermal design notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9
Typical performance characteristics (of each section) . . . . . . . . . . . . 19
10
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26



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