AK4388 Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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AK4388

192kHz 24-Bit 2ch DAC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4388]

„ 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. 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

0

1

2

3

DIF1

L

L

H

H

DIF0

L

H

L

H

SDTI Format

16bit MSB justified

24bit MSB justified

24bit LSB justified

16/24bit I2S Compatible

BICK

≥32fs

≥48fs

≥48fs

≥48fs or 32fs

Table 5. Audio Data Formats

Figure

Figure 1

Figure 2

Figure 3

Figure 4

LRCK

BICK

(32fs)

SDTI

Mode 0

BICK

(64fs)

SDTI

Mode 0

01

10 11 12 13 14 15 0 1

15 14

01

6 5 4 3 2 1 0 15 14

14 15 16 17

31 0 1

Don’t care

15 14

15:MSB, 0:LSB

Lch Data

0 Don’t care

10 11 12 13 14 15 0 1

6 5 4 3 2 1 0 15 14

14 15 16 17

31 0 1

15 14

0

Rch Data

Figure 1. Mode 0 Timing

LRCK

BICK

(64fs)

SDTI

Mode 1

01

8 9 10 11 12

Don’t care 23 22 21 20 19

23:MSB, 0:LSB

Lch Data

31 0 1

8 9 10 11 12

0 Don’t care 23 22 21 20 19

Rch Data

31 0 1

0

Figure 2. Mode 1 Timing

MS0485-E-01

-9-

2006/07

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