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WM8802
USER DATA INPUT (UI)
User data can be input from RX6/UI by switching the RX6/UI input contents using UISEL.
The user data write timing is shown below.
TLRCK
TBCK
UI
U
U
U
U
U
Internal latch signal
Figure 28 User Data Input Timing
MODULATED OUTPUT OF SDIN INPUT DATA
SDIN input data is modulated and can be output from TXO and RXOUT.
The setting to modulate SDIN input data is set using TDTSEL.
A clock should be input to synchronize SDIN to TMCK, TBCK and TLRCK.
Match the SDIN input data format to the setting used during modulation processing.
MONAURAL OUTPUT
It is possible to output the data of only one input data channel at the input rate of fs/2 with
TXMOD[0:1].
This operation maintains the bi-phase modulation regularity but there is no correlation between the
data and preambles.
Channel status write is synchronized with the output rate.
The validity flag and user data are written in frame units. Input the same data to the L and R
channels.
TLRCK
TDATA
TXO [1]
TXO [2]
R4
L5
R0
L1
R1
L2
R2
L3
R3
L4
R5
Ln
M
L0
W
L1
M
L2
W
M
L3
L4
Rn
M
R0
W
R1
M
R2
W
R3
M
R4
Figure 29 Modulation of Data of Single Channel
PP Rev 1.1 April 2004
35
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
