AK4373 Datasheet, PDF (78/98 Pages) Asahi Kasei Microsystems – Low Power Stereo DAC with HP/SPK-Amp

[AK4373]
Addr
09H
0CH
Register Name
Lch Input Volume Control
Rch Input Volume Control
Default
D7
AVL7
AVR7
1
D6
AVL6
AVR6
1
D5
AVL5
AVR5
1
D4
AVL4
AVR4
0
D3
AVL3
AVR3
0
D2
AVL2
AVR2
0
AVL7-0, AVR7-0: ALC Block Digital Volume; 0.375dB step, 242 Level (Table 30.)
Default:“E1H” (+30dB)
D1
AVL1
AVR1
0
D0
AVL0
AVR0
1
Addr
0AH
0DH
Register Name
Lch Digital Volume Control
Rch Digital Volume Control
Default
D7
DVL7
DVR7
0
D6
DVL6
DVR6
0
D5
DVL5
DVR5
0
D4
DVL4
DVR4
1
D3
DVL3
DVR3
1
D2
DVL2
DVR2
0
D1
DVL1
DVR1
0
D0
DVL0
DVR0
0
DVL7-0, DVR7-0: Output Digital Volume (Table 32.)
Default: “18H” (0dB)
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
0BH ALC Mode Control 3
RGAIN1 LMTH1
0
0
0
FRN VBAT
0
Default
0
0
0
0
0
0
0
0
VBAT: HP-Amp Common Voltage (Table 40.)
0: 0.5 x HVDD (default)
1: 0.64 x AVDD
FRN: Fast Recovery Enable
0: Enable(default)
1:Disable
LMTH1: ALC Limiter Detection Level / Recovery Counter Reset Level (Table 22.)
RGAIN1: ALC Recovery GAIN Step (Table 26.)
Addr
0EH
Register Name
Mode Control 3
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
SMUTE DVOLC
0
0
DEM1 DEM0
0
0
0
1
0
0
0
1
DEM1-0: De-emphasis Frequency Select (Table 31)
Default: “01” (OFF)
DVOLC: Output Digital Volume Control Mode Select
0: Independent
1: Dependent (default)
When DVOLC bit = “1”, DVL7-0 bits control both Lch and Rch volume level, while register values of
DVL7-0 bits are not written to DVR7-0 bits. When DVOLC bit = “0”, DVL7-0 bits control Lch level and
DVR7-0 bits control Rch level, respectively.
SMUTE: Soft Mute Control
0: Normal Operation (default)
1: DAC outputs soft-muted
MS0991-E-00
- 78 -
2008/09