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WM8993 Datasheet(PDF) 111 Page - Wolfson Microelectronics plc

Part # WM8993
Description  Audio Hub CODEC for Multimedia Phones
PDF  229 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8993 Datasheet(HTML) 111 Page - Wolfson Microelectronics plc

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Production Data
WM8993
w
PD, November 2010, Rev 4.0
111
OPERATION WITH TDM
Time division multiplexing (TDM) allows multiple devices to transfer data simultaneously on the same
bus. The WM8993 ADCs and DACs support TDM in master and slave modes for all data formats and
word lengths. TDM is enabled and configured using register bits defined in the “Digital Audio
Interface Control” section.
Figure 41 TDM with WM8993 as Master
Figure 42 TDM with Other CODEC as Master
Figure 43 TDM with Processor as Master
Note: The WM8993 is a 24-bit device. If the user operates the WM8993 in 32-bit mode then the 8
LSBs will be ignored on the receiving side and not driven on the transmitting side. It is therefore
recommended to add a pull-down resistor if necessary to the DACDAT line and the ADCDAT line in
TDM mode.



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