AK4393 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AK4393

Advanced Multi-Bit 96kHz 24-Bit ΔΣ DAC

Asahi Kasei Microdevices 

[AK4393]

„ 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

0

1

2

3

4

DIF2

0

0

0

0

1

DIF1

0

0

1

1

0

DIF0

0

1

0

1

0

Mode

0: 16bit LSB Justified

1: 20bit LSB Justified

2: 24bit MSB Justified

3: I2S Compatible

4: 24bit LSB Justified

BICK

≥32fs

≥40fs

≥48fs

≥48fs

≥48fs

Figure

Figure 1

Figure 2

Figure 3

Figure 4

Figure 2

Table 5. Audio Data Formats

LRCK

BICK

(32fs)

SDATA

Mode 0

BICK

(64fs)

SDATA

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)

SDATA

Mode 1

SDATA

Mode 4

01

8 9 10 11 12

Don’t care

19

19:MSB, 0:LSB

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

19

0 Don’t care 23 22 21 20 19

Rch Data

31 0 1

0

0

Figure 2. Mode 1,4 Timing

M0039-E-03

- 11 -

2012/01

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