[AK4706]
Addr Register Name
01H Switch
R/W
D7
D6
0
D5
D4
D3
D2
D1
D0
VMUTE
VCR1
VCR0
MONO
VOL
TV1
TV0
R/W
default
1
0
0
1
0
1
0
1
TV1-0: TVOUTL/R pins source switch
00: DAC
01: VCRINL/R pins (default)
10: MUTE
11: (Reserved)
VOL: MONOOUT pin source switch
0: Bypass the volume (fixed to DAC out)
1: Through the volume (default)
MONO: Mono select for TVOUTL/R pins
0: Stereo. (default)
1: Mono. (L+R)/2
VCR1-0: VCROUTL/R pins source switch
00: DAC
01: TVINL/R pins (default)
10: MUTE
11: Volume #1 output
VMUTE: Mute switch for volume #1
0: Normal operation
1: Mute the volume #1 (default)
Addr Register Name
02H Main volume
R/W
D7
0
D6
0
D5
L5
D4
L4
D3
L3
D2
L2
D1
L1
D0
L0
R/W
Default
0
0
0
1
1
1
1
1
L5-0: Volume #1 control
Those registers control both Lch and Rch of Volume #1.
111111 to 100011: (Reserved)
100010: Volume gain = +6dB
100001:Volume gain = +4dB
100000: Volume gain = +2dB
011111: Volume gain = +0dB (default)
011110: Volume gain = -2dB
...
000011: Volume gain = -56dB
000010: Volume gain = -58dB
000001: Volume gain = -60dB
000000: Volume gain = Mute
MS0507-E-01
2010/09
- 43 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
