AK4558EN Datasheet, PDF (36/94 Pages) Asahi Kasei Microsystems – 108dB 216kHz 32Bit CODEC with PLL

[AK4558]
■ Parallel Mode (PS pin= “H”)
The external clocks, which are required to operate the AK4558, are MCKI, BICK and LRCK. MCKI should
be synchronized with LRCK but the phase is not critical. MCKI frequencies that corresponds normal
audio rate are shown in Table 5. MCKI frequency, BICK frequency, HPF ON/OFF switching and
Master/Slave mode switching are controlled by the CKS3-0 pins The AK4558 does not support variable
pitch mode when the MCKI is 192fs, 384fs or 768fs (Table 6).
fs
32kHz
44.1kHz
48kHz
96kHz
192kHz
MCKI
128fs
192fs
256fs
384fs
512fs
N/A
N/A
8.192MHz 12.288MHz 16.384MHz
N/A
N/A
11.2896MHz 16.9344MHz 22.5792MHz
N/A
N/A
12.288MHz 18.432MHz 24.576MHz
N/A
N/A
24.576MHz 36.864MHz
N/A
24.576MHz 36.864MHz
N/A
N/A
N/A
Table 5. System Clock Example (N/A: Not Available)
768fs
24.576MHz
33.8688MHz
36.864MHz
N/A
N/A
Mode
Sampling Frequency
MCKI
Normal Speed
8kHz  fs  54kHz
8kHz  fs  48kkHz
256fs/512fs
384fs/768fs
Double Speed
54kHz < fs  108kHz
48kHz < fs  96kHz
256fs
384fs
Quad Speed
108kHz < fs  216kHz
96kHz < fs  192kHz
128fs
192fs
Table 6. Sampling Frequency Range
015004500-E-02
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2015/09