AK4387 Datasheet, PDF (9/21 Pages) Asahi Kasei Microsystems – 106dB 192kHz 24-Bit 2ch ΔΣ DAC

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