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CS43130 Datasheet(PDF) 62 Page - Cirrus Logic |
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CS43130 Datasheet(HTML) 62 Page - Cirrus Logic |
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62 / 137 page  62 DS1073F1 CS43130 5.9 Headphone Power-Up Sequence 5.9 Headphone Power-Up Sequence An example of the power-up sequence for PCM and DSD are shown in Ex. 5-9 and Ex. 5-10, respectively. Follow the stated sequence every time to power up the headphone output. 5.9.1 PCM Power-Up Sequence Example 5-9. PCM Power-Up Sequence STEP TASK REGISTER/BIT FIELDS VALUE DESCRIPTION 1 Run PCM power-up initialization sequence in Ex. 5-7. 2 Power up ASP Power Down Control. 0x20000 data (0x20000) AND (0xBF) PDN_XSP PDN_ASP PDN_DSDIF PDN_HP PDN_XTAL PDN_PLL PDN_CLKOUT Reserved x 0 x x x x x x Power up ASP 3 Pop-free startup 0x1002C 0x0A 4 Power on amplifier Power Down Control. 0x20000 data (0x20000) AND (0xEF) PDN_XSP PDN_ASP PDN_DSDIF PDN_HP PDN_XTAL PDN_PLL PDN_CLKOUT Reserved x x x 0 x x x x Power up HP 5 Wait for 10 ms 6 Restore defaults 0xC0006 0x0C 0xC0002 0x10 0xC0009 0x20 7 Audio output will be active. Wait for 1000 ms. 8 Restore defaults 0x1002C 0x00 0x10010 0x00 |
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