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WM8533 датащи(PDF) 19 Page - Wolfson Microelectronics plc

номер детали WM8533
подробное описание детали  24-bit 192kHz Stereo DAC with 2Vrms Ground Referenced Line Output
PDF  41 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8533 датащи(HTML) 19 Page - Wolfson Microelectronics plc

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Production Data
WM8533
w
PD, July 2012, Rev 4.0
19
DIGITAL AUDIO INTERFACE
The digital audio interface is used for inputting audio data to the WM8533. The digital audio interface
uses three pins:
DACDAT: DAC data input
LRCLK: Left/Right data alignment clock
BCLK: Bit clock, for synchronisation
MASTER AND SLAVE MODE OPERATION
The WM8533 digital audio interface can operate as a master or as a slave as shown in Figure 13 and
Figure 14.
Figure 13 Slave Mode
Figure 14 Master Mode
INTERFACE FORMATS
The WM8533 supports five different audio data formats:
Left justified
Right justified
I2S
DSP Mode A
DSP Mode B
PCM operation is supported using the DSP mode. All of these modes are MSB first. They are
described in the following sections. Refer to the “Signal Timing Requirements” section for timing
information. Refer to Table 10 for interface control format register settings.
AUDIO DATA FORMATS
In Right Justified mode, the LSB is available on the last rising edge of BCLK before a LRCLK
transition. All other bits are transmitted before (MSB first). Depending on word length, BCLK
frequency and sample rate, there may be unused BCLK cycles after each LRCLK transition.
Figure 15 Right Justified Audio Interface (assuming n-bit word length)



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