AK4388 データシートの表示（PDF） - Asahi Kasei Microdevices

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AK4388

192kHz 24-Bit 2ch DAC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4388]

LRCK

BICK

(64fs)

SDTI

Mode 2

01

2

22 23 24

30 31 0 1

2

23 22

1 0 Don’t care

23:MSB, 0:LSB

Lch Data

23 22

Figure 3. Mode 2 Timing

22 23 24

30 31 0 1

1 0 Don’t care

Rch Data

23 22

LRCK

BICK

(64fs)

SDTI

Mode 3

0123

23 24 25

31 0 1 2 3

23 22

1 0 Don’t care

23:MSB, 0:LSB

Lch Data

23 22

Figure 4. Mode 3 Timing

23 24 25

31 0 1

1 0 Don’t care

23

Rch Data

„ De-emphasis Filter

A digital de-emphasis filter is built-in (tc = 50/15µs). DEM pin is internal pull-down pin. The digital de-emphasis filter

is enabled by setting DEM pin “H”. Refer to the section of “FILTER CHARACTERISTICS” regarding the gain error

when the de-emphasis filter is enabled.

DEM pin

1

0

De-emphasis Filter

ON

OFF

Default

Table 6. De-emphasis Filter Control

MS0485-E-01

- 10 -

2006/07

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