AK4648 Datasheet, PDF (91/119 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/SPK-AMP

[AK4648]
Addr Register Name
D7
D6
D5
D4
D3
0BH ALC Mode Control 3
RGAIN1 LMTH1
0
0
0
R/W
R/W
R/W
RD
RD
RD
Default
0
0
0
0
0
VBAT: HP-Amp Common Voltage (Table 62)
0: 0.5 x HVDD (default)
1: 0.64 x AVDD
LMTH1: ALC Limiter Detection Level / Recovery Counter Reset Level (Table 27)
RGAIN1: ALC Recovery GAIN Step (Table 31)
D2
D1
D0
0
VBAT
0
RD
R/W
RD
0
0
0
Addr
0EH
Register Name
Mode Control 3
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
LOOP SMUTE DVOLC
0
FBEQ DEM1 DEM0
RD
R/W
R/W
R/W
RD
R/W
R/W
R/W
0
0
0
1
0
0
0
1
DEM1-0: De-emphasis Frequency Select (Table 36)
Default: “01” (OFF)
FBEQ: 5-Band Equalizer Enable
0: Disable (default)
1: Enable
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
LOOP: Digital Loopback Mode
0: SDTI → DAC (default)
1: SDTO → DAC
MS0625-E-01
- 91 -
2007/06