AK4145 Datasheet, PDF (22/27 Pages) Asahi Kasei Microsystems – Digital BTSC Stereo Encoder

[AK4145]
Lch Volume control
Addr
02H
Register Name
Lch Volume
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
L7
L6
L5
L4
L3
L2
L1
L0
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
1
1
1
1
1
0
L7-0: Lch Volume Control when VOLC bit = “0” (Table 9).
These bits control both Lch and Rch volume when VOLC bit = “1”.
Rch Volume control
Addr
03H
Register Name
Rch Volume
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
R7
R6
R5
R4
R3
R2
R1
R0
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
1
1
1
1
1
0
R7-0: Rch Volume Control when VOLC bit = “0” (Table 10).
Don’t care when VOLC bit = “1”.
BTSC Composite Volume control
Addr
04H
Register Name
Composite Volume
R/W
Default
D7
ATT7
R/W
1
D6
ATT6
R/W
1
D5
ATT5
R/W
1
D4
ATT4
R/W
1
D3
ATT3
R/W
1
D2
ATT2
R/W
1
D1
ATT1
R/W
1
D0
ATT0
R/W
1
ATT = 20 log₁₀ ((ATT_DATA + 1) / 256) [dB]
FFH: 0dB (default)
….
00H: Mute
Stereo Matrix control
Addr
05H
Register Name
Stereo Matrix
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
PL3 PL2 PL1 PL0
RD
RD
RD
RD R/W R/W R/W R/W
0
0
0
0
1
0
0
1
PL3-0: Stereo Matrix control
Refer to Table 13.
MS0982-E-01
- 22 -
2010/09