AK4424 datasheet(10/19 Pages) AKM | 192kHz 24-Bit Stereo ?誇 DAC with 2Vrms Output

Part No.	AK4424

Description	192kHz 24-Bit Stereo ?誇 DAC with 2Vrms Output

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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10 / 19 page

[AK4424]

MS0935-E-03

2010/09

- 10 -

LRCK

BICK

(64fs)

SDTI

0

3

1

2

24

31

0

1

31

0

1

23:MSB, 0:LSB

22

1

0

Don’t care

23

Lch Data

Rch Data

23

25

3

224

23

25

22

1

0

Don’t care

23

Figure 3. Audio Interface Timing

De-emphasis Filter

The AK4424 integrates digital de-emphasis filter (tc = 50/15µs). The DEM pin which enables the digital de-emphasis

filter by setting “H” is internal pull-down pin. Refer to the section of “FILTER CHARACTERISTICS” regarding the gain

error when the de-emphasis filter is enabled. In case of double speed mode (MCLK=256fs/384fs) and quad speed mode

(MCLK=128fs/192fs), the digital de-emphasis filter is always off.

DEM pin

De-emphasis Filter

1

ON

0

OFF

(default)

Table 4. De-emphasis Filter Control (Normal Speed Mode)

■ Zero detect function

When the input data for both channels are continuously zeros for 8192 LRCK cycles, the DZF pin is set to “H”. If the

input data of Lch and Rch are continuously not zeros orderly, or if each Rch or Lch is continuously not zeros, the DZF pin

immediately returns to “L”.

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AK4424 Datasheet(PDF) 10 Page - Asahi Kasei Microsystems

AK4424 Datasheet(HTML) 10 Page - Asahi Kasei Microsystems

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