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AK4388A Datasheet(PDF) 9 Page - Asahi Kasei Microsystems |
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AK4388A Datasheet(HTML) 9 Page - Asahi Kasei Microsystems |
9 / 18 page [AK4388A] MS1008-E-02 2010/09 - 9 - ■ Audio Serial Interface Format Data is shifted in via the SDTI pin using BICK and LRCK inputs. The DIF0-1 as shown in Table 5 can select four serial data modes. The DIF1 pin is internal pull-up pin. In all modes the serial data is MSB-first, 2’s compliment format and is latched on the rising edge of BICK. Mode DIF1 DIF0 SDTI Format BICK Figure 0 L L 16bit LSB justified ≥32fs Figure 4 1 L H 24bit LSB justified ≥48fs Figure 5 2 H L 24bit MSB justified ≥48fs Figure 6 3 H H 16/24bit I2S Compatible ≥48fs or 32fs Figure 7 Table 5. Audio Data Formats SDTI BICK LRCK SDTI 15 14 6 5 4 BICK 0 1 10 11 12 13 14 15 0 1 10 11 12 13 14 15 0 1 32 1 0 15 14 (32fs) (64fs) 0 14 1 15 16 17 31 0 1 14 15 16 17 31 0 1 15 14 0 15 14 0 Mode 0 Don’t care Don’t care 15:MSB, 0:LSB Mode 0 15 14 6 5 4 3 2 1 0 Lch Data Rch Data Figure 4. Mode 0 Timing SDTI LRCK BICK (64fs) 0 9 1 10 11 12 31 0 1 9 10 11 12 31 0 1 19 0 19 0 Mode 1 Don’t care Don’t care 23:MSB, 0:LSB Lch Data Rch Data 88 20 22 21 23 20 22 21 23 Figure 5. Mode 1 Timing |
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