AK4950 Datasheet, PDF (82/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
Addr Register Name
D23
D22
D21
D20
D19
D18
D17
D16
0DH Mode Control 4
THDET
0
0
0
0
0
0
COEW
R/W
R
R
R
R
R
R
R
R/W
Default
0
0
0
0
0
0
0
0
COEW: Filter Coefficient Write Enable
0: Disable (default)
1: Enable
THDET: Thermal Shutdown Detection (READ only)
This bit becomes “1” when the internal temperature of LSI exceeds 170°C (typ). When THDET bit changes to
“1”, PMSPK, PMLO, PMV and PMCP bits become “0” forcibly. THDET bit returns to “0” when the internal
temperature is down, however, PMSPK, PMLO, PMV and PMCP bits stays “0”.
Addr
0EH
Register Name
Mode Control 5
R/W
Default
D23
D22
D21
D20
D19
D18
D17
D16
0
0
0
0
0
0
0
INIT
R
R
R
R
R
R
R
R/W
0
0
0
0
0
0
0
0
INIT: Programmable Filter Initializing
Programmable filter coefficients are initialized by INIT bit = “1”. INIT bit returns to “0” automatically when the
initialization is finished. This initialization must be made after clocks are input following the PDN pin = “L” →
“H”.
Addr
0FH
Register Name
ALC Volume
R/W
Default
D23
VOL7
R
-
D22
VOL6
R
-
D21
VOL5
R
-
D20
VOL4
R
-
D19
VOL3
R
-
VOL7-0: Current ALC volume value, Read operation only (Table 34)
D18
VOL2
R
-
D17
VOL1
R
-
D16
VOL0
R
-
(ALC Registers)
Addr Register Name
20H Lch Intput Volume Control
21H Rch Intput Volume Control
R/W
Default
D23
IVL7
IVR7
R/W
1
IVL7-0, IVR7-0: Input Digital Volume
Default: “E1H” (+30dB)
D22
IVL6
IVR6
R/W
1
D21
IVL5
IVR5
R/W
1
D20
IVL4
IVR4
R/W
0
D19
IVL3
IVR3
R/W
0
D18
IVL2
IVR2
R/W
0
D17
IVL1
IVR1
R/W
0
D16
IVL0
IVR0
R/W
1
Addr
22H
23H
Register Name
Lch Output Volume Control
Rch Output Volume Control
R/W
Default
D23
OVL7
OVR7
R/W
1
D22
OVL6
OVR6
R/W
0
OVL7-0, OVR7-0: Output Digital Volume
Default: “91H” (0dB)
D21
OVL5
OVR5
R/W
0
D20
OVL4
OVR4
R/W
1
D19
OVL3
OVR3
R/W
0
D18
OVL2
OVR2
R/W
0
D17
OVL1
OVR1
R/W
0
D16
OVL0
OVR0
R/W
1
MS1320-E-00
- 82 -
2011/10