WM8961 datasheet(60/116 Pages) WOLFSON

Part #	WM8961

Description	Ultra-Low Power Stereo CODEC with 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers

PDF	116 Pages

Scroll/Zoom	100%

Manufacturer	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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60 / 116 page

WM8961

Pre-Production

PP, August 2009, Rev 3.1

AUDIO DATA FORMATS

In Left Justified mode, the MSB is available on the first rising edge of BCLK following a LRC 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 before each LRC transition.

Figure 31 Left Justified Audio Interface (assuming n-bit word length)

In Right Justified mode, the LSB is available on the last rising edge of BCLK before a LRC 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 LRC transition.

Figure 32 Right Justified Audio Interface (assuming n-bit word length)

In I

2S mode, the MSB is available on the second rising edge of BCLK following a LRC 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 33 I

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

WM8961 Datasheet(PDF) 60 Page - Wolfson Microelectronics plc