WM8956CGEFLSLASHV datasheet(44/80 Pages) WOLFSON

Part #	WM8956CGEFL/V

Description	Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers

PDF	80 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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44 / 80 page

WM8956

Production Data

PD, November 2011, Rev 4.1

Figure 26 I

2S Justified Audio Interface (assuming n-bit word length)

In DSP/PCM mode, the left channel MSB is available on either the 1

st (mode B) or 2nd (mode A) rising

edge of BCLK (selectable by LRP) following a rising edge of LRC. Right channel data immediately

follows left channel data. Depending on word length, BCLK frequency and sample rate, there may be

unused BCLK cycles between the LSB of the right channel data and the next sample.

In device master mode, the LRC output will resemble the frame pulse shown in Figure 27 and Figure

28. In device slave mode, Figure 29 and Figure 30, it is possible to use any length of frame pulse less

than 1/fs, providing the falling edge of the frame pulse occurs greater than one BCLK period before

the rising edge of the next frame pulse.

Figure 27 DSP/PCM Mode Audio Interface (mode A, LRP=0, Master)

Figure 28 DSP/PCM Mode Audio Interface (mode B, LRP=1, Master)

WM8956CGEFL/V Datasheet(PDF) 44 Page - Wolfson Microelectronics plc