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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CS43131 датащи(PDF) 93 Page - Cirrus Logic |
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CS43131 датащи(HTML) 93 Page - Cirrus Logic |
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93 / 156 page  DS1155F1 93 CS43131 5.13 Example Sequences 5.13.9 Switching from PCM to Analog-In Playback Ex. 5-15 makes the following assumptions: • The CS43131 is powered up, out of reset, and currently operating in PCM playback mode. • A headphone is connected to the headphone jack. • Headphone detect is enabled and HPDETECT_PLUG_INT = 1. • XTAL is used as MCLK source. Example 5-15. Switching from PCM to Analog-In Playback STEP TASK REGISTER/BIT FIELDS VALUE DESCRIPTION 1 Enable soft ramp PCM Path Signal Control 1. 0x90003 data(0x90003) OR (0xA0) PCM_RAMP_DOWN PCM_VOL_BEQA PCM_SZC PCM_AMUTE PCM_AMUTEBEQA PCM_MUTE_A PCM_MUTE_B 1 x 10 x x 0 0 Enable soft ramp 2 PCM Power Down Sequence Refer to Section 5.6.1 3 Set MCLK Source to RCO System Clocking Control 1. 0x10006 0x06 Reserved MCLK_INT MCLK_SRC_SEL 0000 0 1 10 Frequency of MCLK_INT is don't care MCLK source set to RCO 4 Wait for 150 µs. 5 Power down crystal Power Down Control. 0x20000 data (0x20000) OR (0x08) PDN_XSP PDN_ASP PDN_DSDIF PDN_HP PDN_XTAL PDN_PLL PDN_CLKOUT Reserved x 1 x 1 1 x x 0 ASP already powered down HP already powered down Power down XTAL. 6 Enable HPINx Refer to Section 5.5.1 |
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