AK4563A Datasheet, PDF (20/39 Pages) Asahi Kasei Microsystems – Low Power 16bit 4ch ADC & 2ch DAC with ALC

ASAHI KASEI
[AK4563A]
Addr
02H
Register Name
Mode Control
R/W
RESET
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
FS
DIF1 DIF0 DEM1 DEM0
R/W
0
0
0
1
0
0
0
1
DEM1-0: Select De-emphasis frequency
The AK4563A includes the digital de-emphasis filter (tc = 50/15µs) by IIR filter. The filter
corresponds to three sampling frequencies (32kHz, 44,1kHz and 48kHz). The de-emphasis filter
selected by DEM0 and DEM0 bits are enabled for input audio data.
DEM1 DEM0
Mode
0
0
44.1kHz
0
1
OFF
RESET
1
0
48kHz
1
1
32kHz
Table 4. Select De-emphasis frequency
DIF1-0: Select Audio Serial Interface Format (AK4516A compatible)
No. DIF1 DIF0 SDTO0/SDTO1(ADC) SDTI(DAC)
0
0
0
MSB justified
LSB justified
1
0
1
LSB justified
LSB justified
2
1
0
3
1
1
MSB justified
I²S compatible
MSB justified
I²S compatible
Table 5. Select Audio Serial Interface Format
BCLK
≥ 32fs
=64fs
≥ 32fs
≥ 32fs
Figure
Figure 9
Figure 10
Figure 11
Figure 12
RESET
FS: Select Sampling Frequency
0:fs=32kHz
1:fs=48kHz (RESET)
FS bit can set limiter period (LTM1-0 bit), recovery period (WTM1-0 bit), zero crossing timeout
(ZTM1-0 bit) and FADEIN/FADEOUT period (FDTM1-0 bit) the same period at fs=32kHz and
48kHz.
MS0067-E-02
- 20 -
2004/12