AK4213 Datasheet, PDF (35/38 Pages) Asahi Kasei Microsystems – Mono Class-D SPK-Amp with Stereo Cap-less HP-Amp

[AK4213]
Addr
10H
Register Name
ALC Mode Control 2
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
ZTM1 ZTM0 WTM2 WTM1 WTM0
RD
RD
RD R/W R/W R/W R/W R/W
0
0
0
0
1
1
0
1
WTM2-0: ALC Recovery Waiting Period
Default: “101”, 524.8ms (typ.) (Table 8)
ZTM1-0: ALC Zero Crossing Timeout Period
Default: “01”, 32.8ms (typ.) (Table 7)
Addr
11H
Register Name
ALC Mode Control 3
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
ALC ZELMN LMAT1 LMAT0 RGAIN1 RGAIN0 LMTH
RD R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
0
LMTH: ALC Limiter Detection Level / Recovery Wainting Counter Reset Level
Default: “0” (Table 5)
RGAIN1-0: ALC Recovery GAIN Step
Default: “00”; 1 step (Table 9)
LMAT1-0: ALC Limiter ATT Step
Default: “00”; 1 step (Table 6)
ZELMN: Zero Crossing Detection Enable at ALC Limiter Operation
0: Enable (default)
1: Disable
ALC: ALC Enable
0: ALC Disable (default)
1: ALC Enable
When ALC bit is set to “1”, the ALC operation is enabled. The initial value is “0” (Disable).
Addr
12H
Register Name
TEST
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
RD
RD
RD
RD
RD
RD
RD
RD
0
0
0
0
0
0
0
0
Write “0” into the “0” registers.
MS0949-E-01
- 35 -
2008/07