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STA323W 데이터시트(PDF) 2 Page - STMicroelectronics

부품명 STA323W
상세설명  2.1 high efficiency digital audio system
Download  71 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA323W 데이터시트(HTML) 2 Page - STMicroelectronics

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Contents
STA323W
2/71
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1
Block diagram and configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2
EQ processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1
Power supply and control sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1
Output power against supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1.1
Audio performance (operation with Vcc = 26 V, 8 Ohm load, stereo mode)
19
4.1.2
Audio performance - stereo mode (operation with Vcc = 18.5 V) . . . . . 20
4.1.3
Audio performance - half bridge binary mode (operation with Vcc =
18.5 V) 24
5
Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6
STA323W I2C bus specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1
Communication protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.1
Data transition or change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.2
Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.3
Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1.4
Data input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2
Device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3
Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.3.1
Byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.3.2
Multi-byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4
Read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4.1
Current address byte read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4.2
Random address byte read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.5
Write mode sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.6
Read mode sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32


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