ak4569 AKM Semiconductor, Inc., ak4569 Datasheet - Page 18

• Manufacturer Part Number: ak4569
• Description: 20-bit Stereo Codec With Ipga & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
[3] ALC Operation Example
The following registers should not be changed during the ALC operation:
MS0292-E-01
LTM1-0, LMTH, LMAT1-0, WTM1-0, ZTM1-0, RATT, REF6-0, ZELMN.
Figure 14. Registers set-up sequence at ALC operation (WR=Write)
WR (Power Management Control & Signal Select)
Finish ALC mode and return to Manual mode
No
WR (ZTM1-0, WTM1-0, LTM1-0)
WR (LMAT1-0, RATT, LMTH)
WR (ALC= “1”,ZELMN)
Finish ALC mode?
WR (IPGA6-0)
ALC Operation
WR (ALC=”0”)
WR (REF6-0)
Manual mode
Yes
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* The value of IPGA should be the
same or smaller than REF’s.
[AK4569]
2005/07