ak4534 AKM Semiconductor, Inc., ak4534 Datasheet - Page 49
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ak4534
Manufacturer Part Number
ak4534
Description
16bit Codec With Mic/hp/spk-amp
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4534.pdf
(64 pages)
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ASAHI KASEI
MS0133-E-03
Addr
0AH
REF6-0: Reference value at ALC1 Recovery Operation (see Table 29)
During the ALC1 recovery operation, if the IPGA value exceeds the setting reference value by gain operation, then
the IPGA does not become larger than the reference value. For example, when REF7-0 = “30H”, RATT = 2step,
IPGA = 2FH, even if the input signal does not exceed the “ALC1 Recovery Waiting Counter Reset Level”, the
IPGA does not change to 2FH + 2step = 31H, and keeps 30H. Default is “36H”.
Register Name
ALC Mode Control 2
Default
R/W
Table 29. Setting Reference Value at ALC1 Recovery Operation
DATA (HEX)
47
46
45
36
10
06
05
04
03
02
01
00
:
:
:
RD
D7
0
0
REF6
R/W
GAIN (dB)
D6
0
+27.5
+27.0
+26.5
+19.0
+0.0
5.0
5.5
6.0
6.5
7.0
7.5
8.0
:
:
:
- 49 -
REF5
R/W
D5
1
0.5dB
STEP
REF4
R/W
D4
1
REF3
R/W
D3
Default
0
REF2
R/W
D2
1
REF1
R/W
D1
1
[AK4534]
REF0
R/W
2003/5
D0
0
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