WM8972LEFLSLASHR datasheet(30/49 Pages) WOLFSON

部件名	WM8972LEFL/R

功能描述	MONO CODEC FOR PORTABLE AUDIO APPLICATIONS

PDF	49 Pages

Scroll/Zoom	100%

制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

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30 / 49 page

WM8972L

Preliminary Technical Data

PTD Rev 2.2 June 2004

In I

2S mode, the MSB is available on the second rising edge of BCLK following a LRCLK transition.

The other bits up to the LSB are then transmitted in order. Depending on word length, BCLK

frequency and sample rate, there may be unused BCLK cycles between the LSB of one sample and

the MSB of the next.

Figure 15 I

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

In DSP mode, the mono 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 LRCLK. Depending on word length, BCLK

frequency and sample rate, there may be unused BCLK cycles between the LSB and the next

sample.

Figure 16 DSP Mode Audio Interface (mode A, LRP=0)

Figure 17 DSP Mode Audio Interface (mode B, LRP=1)

WM8972LEFL/R 数据表(PDF) 30 Page - Wolfson Microelectronics plc