WM8802 datasheet(35/65 Pages) WOLFSON

tên linh kiện	WM8802

Giải thích chi tiết về linh kiện	Digital Audio Interface Transceiver

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WM8802

PP Rev 1.1 April 2004

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

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]

Figure 29 Modulation of Data of Single Channel

WM8802 bảng dữ liệu(PDF) 35 Page - Wolfson Microelectronics plc