ak4683 AKM Semiconductor, Inc., ak4683 Datasheet - Page 50

• Manufacturer Part Number: ak4683
• Description: Asynchronous Multi-channel Audio Codec With Dir/t
• Manufacturer: AKM Semiconductor, Inc.

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The AK4683 can output either the through output (from RX) or transmitter output (DIT) via TX pin. Those could be
selected by DIT bit. The source of the through output from TX0 could be selected among RX0-3 by OPS0, 1 bits. When
output DIT data, V bit could be controlled by VIN bit and first 5 bytes of C bit could be controlled by CT39-CT0 bits in
control registers. When bit0= “0”(consumer mode), bit20-23 (Audio channel) could not be controlled directly but be
controlled by CT20 bit. When the CT20 bit is “1”, the AK4683 outputs “1000” as C20-23 for left channel and outputs
“0100” at C20-23 for right channel automatically. When CT20 bit is “0”, the AK4683 outputs “0000” set as “1000” for
sub frame 1, and “0100” for sub frame 2. U bits are fixed to “0”.
CM1-0 bit, CLKDT bit, CKSDT bit and OCKS1-0 select the clock source of DIT. This clock must be the same clock as
the clock sources of PORT connecting to DIT.
MS0427-E-02
Biphase Output
CKSDT
0
0
0
0
1
1
1
1
DIT bit
0
0
0
0
1
OCKS1
0
0
1
1
0
0
1
1
CM1
0
0
1
1
OPS1 bit
CLKDT bit
0
0
1
1
*
CM0
OCKS0
0
1
0
1
0
1
Table 55. Clock Mode Control
Table 54. TX Source Control
Table 56. EXTCLK Control
0
1
0
1
0
1
0
1
Table 57. MCLKO Speed
OPS0 bit
UNLOCK
0
1
0
1
*
0
1
-
-
-
- 50 -
Clock Source
MCLK2
Clock Source
EXTCLK
EXTCLK
EXTCLK
EXTCLK
XTI
256fs
256fs
512fs
128fs
384fs
384fs
768fs
192fs
RMCK
RMCK
TX Source
RX0
RX1
RX2
RX3
DIT
(default)
(default)
fs(max)
192kHz
96kHz
96kHz
48kHz
48kHz
48kHz
32kHz
96kHz
[AK4683]
2007/04