AK4490EN Datasheet, PDF (30/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490EN]
Table 9. System Clock Example (Manual Setting Mode @Serial Mode)
LRCK
MCLK (MHz)
fs
16fs 32fs 48fs 64fs 96fs 128fs 192fs 256fs
32.0kHz N/A
N/A
N/A
N/A
N/A
N/A
N/A 8.1920
44.1kHz N/A
N/A
N/A
N/A
N/A
N/A
N/A 11.2896
48.0kHz N/A
N/A
N/A
N/A
N/A
N/A
N/A 12.2880
88.2kHz N/A
N/A
N/A
N/A
N/A
N/A
N/A 22.5792
96.0kHz N/A
N/A
N/A
N/A
N/A
N/A
N/A 24.5760
176.4kHz N/A
N/A
N/A
N/A
N/A 22.5792 33.8688 45.1584
192.0kHz N/A
N/A
N/A
N/A
N/A 24.5760 36.8640 49.152
384kHz
N/A 12.288 18.432 24.576 36.864 N/A
N/A
N/A
768kHz ^{12.288 24.576 36.864 49.152 N/A}
N/A
N/A
N/A
Sampling
Speed
Normal
Double
Quad
Quad
Oct
Hex
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
384kHz
768kHz
384fs
12.2880
16.9344
18.4320
33.8688
36.8640
N/A
N/A
N/A
N/A
MCLK (MHz)
512fs 768fs 1024fs
16.3840 24.5760 32.7680
22.5792 33.8688 N/A
24.5760 36.8640 N/A
45.1584 N/A
N/A
49.152 N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1152fs
36.8640
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Sampling
Speed
Normal
Double
Quad
Quad
Oct
Hex
2. Auto Setting Mode (ACKS bit = “1”)
MCLK frequency and the sampling speed are detected automatically (Table 10) and DFS1-0 bits are
ignored. The MCLK frequency corresponding to each sampling speed should be provided externally
(Table 11).
Table 10. Sampling Speed (Auto Setting Mode @Serial Mode)
MCLK
Sampling Speed
1152fs
Normal (fs32kHz)
512/256fs 768/384fs
Normal
256fs
384fs
Double
128fs
192fs
Quad
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
384kHz
768kHz
32fs
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
24.576
Table 11. System Clock Example (Auto Setting Mode @Serial Mode)
MCLK(MHz)
48fs 64fs 96fs 128fs 192fs 256fs 384fs 512fs 768fs 1024fs
N/A
N/A
N/A
N/A
N/A
8.192 12.288 16.384 24.576 32.7680
N/A
N/A
N/A
N/A
N/A 11.2896 16.9344 22.5792 33.8688 N/A
N/A
N/A
N/A
N/A
N/A 12.288 18.432 24.576 36.864 N/A
N/A
N/A
N/A
N/A
N/A 22.5792 33.8688 N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A 24.576 36.864 N/A
N/A
N/A
N/A
N/A
N/A 22.5792 33.8688 N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A 24.576 36.864
N/A
N/A
N/A
N/A
N/A
N/A 24.576 36.864 N/A
N/A
N/A
N/A
N/A
N/A
N/A
36.864 N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1152fs
36.864
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Sampling
Speed
Normal
Double
Quad
Quad
Oct
Hex
015013666-E-01
- 30 -
2015/12