AK4387 Ver la hoja de datos (PDF) - Asahi Kasei Microdevices

Número de pieza

componentes Descripción

Fabricante

AK4387

106dB 192kHz 24-Bit 2ch ∆Σ DAC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4387]

LRCK

fs

176.4kHz

192.0kHz

MCLK

128fs

192fs

22.5792MHz 33.8688MHz

24.5760MHz 36.8640MHz

BICK

64fs

11.2896MHz

12.2880MHz

Table 4. System Clock Example (Quad Speed Mode @Manual Setting Mode)

MCLK

1152fs

512fs

768fs

256fs

384fs

128fs

192fs

Sampling Speed

Normal (fs≤32kHz)

Normal

Double

Quad

Table 5. Sampling Speed (Auto Setting Mode: Default)

LRCK

fs

32.0kHz

44.1kHz

48.0kHz

88.2kHz

96.0kHz

176.4kHz

192.0kHz

128fs

-

-

-

-

-

22.5792

24.5760

192fs

-

-

-

-

-

33.8688

36.8640

MCLK (MHz)

256fs

384fs

512fs

-

-

16.3840

-

-

22.5792

-

-

24.5760

22.5792 33.8688

-

24.5760 36.8640

-

-

-

-

-

-

-

768fs

24.5760

33.8688

36.8640

-

-

-

-

1152fs

36.8640

-

-

-

-

-

-

Sampling

Speed

Normal

Double

Quad

Table 6. System Clock Example (Auto Setting Mode)

„ Audio Serial Interface Format

Data is shifted in via the SDTI pin using BICK and LRCK inputs. The DIF0-2 as shown in Table 7 can select five serial

data modes. In all modes 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 16/20 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

SDTI Format

16bit LSB Justified

20bit LSB Justified

24bit MSB Justified

24bit I2S Compatible

24bit LSB Justified

BICK

≥32fs

≥40fs

≥48fs

≥48fs

≥48fs

Figure

Figure 1

Figure 2

Figure 3

Figure 4

Figure 2

Default

Table 7. Audio Data Formats

MS0429-E-00

-9-

2005/09

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