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STA381BWS Datasheet(PDF) 163 Page - STMicroelectronics

No. de pieza STA381BWS
Descripción Electrónicos  Sound Terminal 2.1-channel high-efficiency digital audio system
PDF  174 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA381BWS Datasheet(HTML) 163 Page - STMicroelectronics

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DocID018937 Rev 7
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STA381BWS
Register description: Sound Terminal compatibility
7.28
Charge pump synchronization (address 0x5F)
Table 180. Charge pump sync configuration bits
The charge pump can be synchronized with the PWM frame in order to minimize the
crosstalk between the charge pump and the PWM waveform.
This functionality cannot be activated when the PWMS bit (address 0x15 bit D4) is set to 1.
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
Reserved
CHPI
INITCNT[3:0]
CHPRD
00011001
Bit
R/W
RST
Name
Description
5
R/W
0
CHPI
0: Charge pump phase: 0 deg
1: Charge pump phase: 180 deg
4
R/W
1
INITCNT[3:0]
Change charge pump phase at one clock step
3
R/W
1
2
R/W
0
1
R/W
0
0
R/W
1
CHPRD
0: Charge pump synchronized with PWM frame
1: Charge pump not synchronized with PWM frame
Obsolete
Product(s)
- Obsolete
Product(s)



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