AK4566 Datasheet, PDF (18/45 Pages) Asahi Kasei Microsystems – 20bit Stereo CODEC with built-in IPGA & HP-AMP

ASAHI KASEI
AKM CONFIDENTIAL
[3] ALC Operation Example
The following registers should not be changed during the ALC operation:
LTM1-0, LMTH, LMAT1-0, WTM1-0, ZTM1-0, RATT, REF6-0, ZELMN.
Manual mode
WR (Power Management Control & Signal Select)
[AK4566]
WR (ZTM1-0, WTM1-0, LTM1-0)
WR (LMAT1-0, RATT, LMTH)
WR (REF6-0)
* The value of IPGA should be the
WR (IPGA6-0) _{same or smaller than REF’s.}
WR (ALC= “1”,ZELMN)
ALC Operation
No
Finish ALC mode?
Yes
WR (ALC=”0”)
Finish ALC mode and return to Manual mode
Figure 14. Registers set-up sequence at ALC operation (WR=Write)
REV 0.5
- 18 -
2002/2