AK4691 Datasheet, PDF (73/80 Pages) Asahi Kasei Microsystems – 4ch ADC + 2ch DAC with MIC/HP/SPK-AMP

[AK4691]
Addr
13H
Register Name
Mode Control 5
R/W
Default
D7
LOOP1
R/W
0
D6
LOOP0
R/W
0
D5
SMUTE
R/W
0
D4
DVTM
R/W
0
D3
BST1
R/W
0
D2
BST0
R/W
0
D1
DEM1
R/W
0
D0
DEM0
R/W
1
DEM1-0: De-emphasis Frequency Select (Table 37)
Default: “01” (OFF)
BST1-0: Bass Boost Function Select (Table 38)
Default: “00” (OFF)
DVTM: Digital Volume Transition Time Setting (Table 40)
0: 1061/fs (default)
1: 256/fs
This is the transition time between DVL/R7-0 bits = 00H and FFH.
SMUTE: Soft Mute Control
0: Normal Operation (default)
1: DAC outputs soft-muted
LOOP1-0: Digital Internal Loopback (Table 23, Table 25)
00: SDTI → DAC (default)
01: SDTO1 → DAC
10: SDTO2 → DAC
11: SDTO1 → DAC
When LOOP1-0 bits = “10” (SDTO2 Æ DAC), TDM mode (DIF1-0 bits = “00”) is not supported.
Addr
14H
15H
Register Name
Mode Control 6
Mode Control 6
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
MGR12 MGR11 MGR10 MGL12 MGL11 MGL10
0
0
MGR22 MGR21 MGR20 MGL22 MGL21 MGL20
RD
RD
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
1
0
0
1
0
MGL12-10: MIC sensitivity compensation for INTL1/EXTL1 input
MGR12-10: MIC sensitivity compensation for INTR1/EXTR1 input
MGL22-20: MIC sensitivity compensation for INTL2/EXTL2 input
MGR22-20: MIC sensitivity compensation for INTR2/EXTR2 input
Default: “010” (0dB) (Table 17, Table 18)
MS0672-E-00
- 73 -
2007/11