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AKD4393 Datasheet(PDF) 11 Page - Asahi Kasei Microsystems |
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AKD4393 Datasheet(HTML) 11 Page - Asahi Kasei Microsystems |
11 / 22 page ASAHI KASEI [AK4393] M0039-E-01 2000/5 - 11 - n Audio Serial Interface Format Data is shifted in via the SDATA pin using BICK and LRCK inputs. Five data formats are supported and selected by the DIF0-2 as shown in Table 5. In all formats the serial data is MSB-first, 2's compliment format and is latched on the rising edge of BICK. Mode 2 can be used for 20 and 16 MSB justified formats by zeroing the unused LSBs. Mode DIF2 DIF1 DIF0 Mode BICK Figure 0 0 0 0 0: 16bit LSB Justified ³32fs Figure 1 1 0 0 1 1: 20bit LSB Justified ³40fs Figure 2 2 0 1 0 2: 24bit MSB Justified ³48fs Figure 3 30 1 1 3: I 2S Compatible ³48fs Figure 4 4 1 0 0 4: 24bit LSB Justified ³48fs Figure 2 Table 5. Audio Data Formats SDATA BICK LRCK SDATA 15 14 6 5 4 BICK 0 1 10 11 12 13 14 15 0 1 10 11 12 13 14 15 0 1 321 0 15 14 (32fs) (64fs) 014 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 1. Mode 0 Timing SDATA LRCK BICK (64fs) 09 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 19:MSB, 0:LSB SDATA Mode 4 23:MSB, 0:LSB 20 19 0 20 19 0 Don’t care Don’t care 22 21 22 21 Lch Data Rch Data 8 23 23 8 Figure 2. Mode 1,4 Timing |
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