AK4601VQ Datasheet, PDF (85/111 Pages) Asahi Kasei Microsystems – Audio HUB CODEC with Digital Mixer

[AK4601]
DEMx[1] bit
0
0
1
1
DEMx[0] bit
Mode
0
44.1kHz
1
OFF
0
48kHz
1
32kHz
Table 58. De-emphasis Filter Control
(default)
The de-emphasis filer only corresponds to the frequencies shown in Table 58. DEMx[1:0] bits must be
set to the default setting “01” when the AK4601 is operated with other sampling frequencies.
• In the case that the AK4601 is operated with a sampling frequency other than shown in Table 58.
The frequency characteristics of the de-emphasis filter will track the sampling frequency of the actual
operation.
(e.g. The cut-off frequency exists around 1kHz in 48kHz mode, around 2kHz in 96kHz mode and
around 0.5kHz in 24kHz mode.)
016000391-E-01
- 85 -
2016/12