ak4671 AKM Semiconductor, Inc., ak4671 Datasheet - Page 134

• Manufacturer Part Number: ak4671
• Description: Stereo Codec With Mic/rcv/hp-amp
• Manufacturer: AKM Semiconductor, Inc.

MS0666-E-00
Addr
Addr
Addr
Addr
14H
15H
16H
12H
13H
IVL7-0, IVR7-0: Input Digital Volume; 0.375dB step, 242 Level
REF7-0: Reference Value at ALC Recovery Operation (Recording); 0.375dB step, 242 Level
PFMXL1-0: 5-band EQ Lch Input Mixing 1
PFMXR1-0: 5-band EQ Rch Input Mixing 1
SRMXL1-0: 5-band EQ Lch Input Mixing 2
SRMXR1-0: 5-band EQ Rch Input Mixing 2
ZTM1-0: ALC Limiter/Recovery Operation Zero Crossing Timeout Period
WTM2-0: ALC Recovery Waiting Period
RFST1-0: ALC First recovery Speed
Default: “91H” (0dB)
Default: “E1H” (+30.0dB)
Default: “00” (SDTI)
Default: “00” (SDTI)
Default: “00” (SDTI)
Default: “00” (SDTI)
Register Name
ALC Reference Select
Register Name
Digital Mixing Control
Register Name
ALC Timer Select
Register Name
Lch Input Volume Control
Rch Input Volume Control
Default: “00” (128/fs)
Default: “000” (128/fs)
Default: “00” (4times)
Default
Default
Default
Default
R/W
R/W
R/W
R/W
SRMXR1
IVR7
IVL7
R/W
REF7
R/W
R/W
D7
RD
D7
D7
D7
1
0
(Table
1
0
0
(Table
30)
SRMXR0
(Table
(Table
(Table
(Table
RFST1
IVL6
IVR6
R/W
REF6
R/W
R/W
R/W
D6
D6
D6
D6
0
1
0
0
27)
49)
50)
51)
52)
- 134 -
SRMXL1
RFST0
IVR5
IVL5
R/W
REF5
R/W
R/W
R/W
D5
D5
D5
D5
0
1
0
0
(Table
SRMXL0
WTM2
IVR4
IVL4
R/W
REF4
R/W
R/W
R/W
D4
D4
D4
D4
1
0
0
0
33)
(Table
PFMXR1
WTM1
IVL3
IVR3
R/W
REF3
R/W
R/W
R/W
D3
D3
D3
D3
0
0
0
0
26)
PFMXR0
WTM0
IVL2
IVR2
R/W
REF2
R/W
R/W
R/W
D2
D2
D2
D2
0
0
0
0
(Table
PFMXL1
IVL1
IVR1
ZTM1
R/W
REF1
R/W
R/W
R/W
D1
D1
D1
D1
0
29)
0
0
0
[AK4671]
PFMXL0
2007/10
IVL0
IVR0
ZTM0
R/W
REF0
R/W
R/W
R/W
D0
D0
D0
D0
1
1
0
0