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STA381BWS データシート(PDF) 163 Page - STMicroelectronics |
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STA381BWS データシート(HTML) 163 Page - STMicroelectronics |
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163 / 174 page  DocID018937 Rev 7 163/174 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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