WM8971L datasheet(40/61 Pages) WOLFSON

Part #	WM8971L

Description	Stereo CODEC for Portable Audio Applications

PDF	61 Pages

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Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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40 / 61 page

WM8971L

Production Data

PD Rev 4.1 August 2005

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 22 and Figure

23. In device slave mode, Figure 24 and Figure 25, 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 22 DSP/PCM Mode Audio Interface (mode A, LRP=0, Master)

Figure 23 DSP/PCM Mode Audio Interface (mode B, LRP=1, Master)

Figure 24 DSP/PCM Mode Audio Interface (mode A, LRP=0, Slave)

WM8971L Datasheet(PDF) 40 Page - Wolfson Microelectronics plc