AK4118A Datasheet, PDF (21/56 Pages) Asahi Kasei Microsystems – High Feature 192kHz 24bit Digital Audio I/F Transceiver

[AK4118A]
■ Biphase Output
The AK4118A outputs the data either through output (from DIR) or transmitted output (DIT; the data from DAUX is
transformed to IEC60958 format.) from TX1/0 pins. It is selected by DIT bit. The source of the data through output from
the TX0 pin is selected among RX0-8 by OPS00, 01 and 02 bits, and selected by OPS10, 11 and 12 bits for the TX1 pin
respectively. When the AK4118A outputs DAUX data, V bit is controlled by the VIN pin and first 5 bytes of C bit can be
controlled by CT39-CT0 bits in control registers (Figure 14). When bit0= “0”(consumer mode), bit20-23(Audio channel)
can not be controlled directly but can be controlled by CT20 bit. When the CT20 bit is “1”, the AK4118A outputs “1000”
at C20-23 for sub frame 1(left channel) and output “0100” at C20-23 for sub frame 2 (right channel) automatically. When
CT20 bit is “0”, the AK4118A outputs “0000”. U bits are controlled by UDIT bit as follows; When UDIT bit is “0”, U
bits are always “0”. When UDIT bit is “1”, the recovered U bits are used for DIT( DIR-DIT loop mode of U bit). This
mode is only available when PLL is locked in the master mode.
OPS02
0
0
0
0
1
1
1
1
OPS01
0
0
1
1
0
0
1
1
OPS00
0
1
0
1
0
1
0
1
Output Data
RX0
RX1
RX2
RX3
RX4
RX5
RX6
RX7
(default)
Table 13. Output Data Select for TX0
DIT
0
0
0
0
0
0
0
0
1
(Normal mode)
OPS12
0
0
0
0
1
1
1
1
x
OPS11
OPS10
Output Data
0
0
RX0
0
1
RX1
1
0
RX2
1
1
RX3
0
0
RX4
0
1
RX5
1
0
RX6
1
1
RX7
x
x
DAUX
(default)
(x: Don’t care)
Table 14. Output Data Select for TX1
(Mono mode)
LRCK
(except I²S)
LRCK
(I²S)
DAUX
L0
R0
L1
R1
L0
R0
L1
R1
VIN
R191 L0
R0
L1
L191/R191
L0/R0
L1/R1
Figure 14. DAUX and VIN input timings
MS1130-E-02
- 21 -
2009/12