[AK4634]
Addr Register Name
D7
ADRST
R/W
0
D6
FCKO
R/W
0
D5
FS3
R/W
0
D4
MSBS
R/W
0
D3
BCKP
R/W
0
D2
FS2
R/W
0
D1
FS1
R/W
0
D0
FS0
R/W
0
05H
Mode Control 2
R/W
Default
FS3-0: Setting of Sampling Frequency (Table 5 and Table 6) and MCKI Frequency (Table 11)
These bits are selected to sampling frequency at PLL mode and MCKI frequency at EXT mode.
Default: “0000”
BCKP, MSBS: “00” (default) (Table 17)
FCKO: Select FCK output frequency at Master Mode (Table 10)
Default: “0”
ADRST: Initialization cycle setting of ADC
0: 1059/fs (default)
1: 291/fs
Addr Register Name
D7
0
R
0
D6
WTM2
R/W
0
D5
ZTM1
R/W
0
D4
ZTM0
R/W
0
D3
WTM1
R/W
0
D2
WTM0
R/W
0
D1
RFST1
R/W
0
D0
RFST0
R/W
0
06H
Timer Select
R/W
Default
WTM2-0: ALC1 Recovery Waiting Period (Table 28)
A period of recovery operation when any limiter operation does not occur during the ALC1 operation.
Default is “000”.
ZTM1-0: ALC1, ALC2, IVOL and OVOL Zero crossing timeout Period (Table 27)
The gain is changed by the manual volume controlling (ALC off) or the recovery operation (ALC on) only at
Zero crossing or timeout. The default value is “00”.
RFST1-0 : ALC First recovery Speed (Table 32)
Default: “00” (4times)
Rev. 0.5
2007/10
- 65 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
