AK4586 Datasheet, PDF (42/54 Pages) Asahi Kasei Microsystems – MULTI CHANNEL AUDIO CODEC WITH DIR

ASAHI KASEI
[AK4586]
Addr
03H
Register Name
Output Control
R/W
Default
D7
D6
D5 D4 D3
D2
D1
D0
0 SMUTE TXE BCU OVFE DZFM2 DZFM1 DZFM0
RD R/W R/W R/W R/W R/W
R/W
R/W
0
0
1
0
0
1
1
1
DZFM2-0: Zero detect mode select (Table 16)
Initial: “111”, disable
OVFE: Overflow detection enable
0: Disable, pin#20 becomes DZF2 pin.
1: Enable, pin#20 becomes OVF pin.
BCU: Block Start and C/U/V Output Mode
When BCU=1, the 4 output pins change another function.
DZF1 Pin → Block start signal
DZF2 Pin → C bit
INT1 Pin → U bit
TX Pin → V bit
The block signal goes high at the start of frame 0 and remains high until the end of frame 31.
(B, C, U, V output timing at RX mode, master mode)
B
C (or U,V)
LRCK
SDTO
(I²S)
SDTO
(except I²S)
C(R191) C(L0) C(R0) C(L1)
1/4fs
L191 R191 L0
R0
R190 L191 R191 L0
TXE: TX Output Enable
0: Disable. TX output is “L”.
1: Enable
SMUTE: Soft Mute Enable (Figure 20)
0: Normal operation
1: All DAC outputs soft-muted
C(L31) C(R31) C(L32)
R30 L31 R31
L30 R30 L31
MS0097-E-01
- 42 -
2001/12