WM8959 datasheet(97/155 Pages) WOLFSON

부품명	WM8959

상세설명	Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver

PDF	155 Pages

Scroll/Zoom	100%

제조업체	WOLFSON [Wolfson Microelectronics plc]

홈페이지	http://www.wolfsonmicro.com

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97 / 155 page

Pre-Production

WM8959

PP, May 2008, Rev 3.1

Figure 69 DSP Mode Audio Interface (mode B, AIF_LRCLK_INV=1, Slave)

PCM operation is supported in DSP interface mode. Mono PCM data received by the WM8959 will

be treated as Left Channel data. This data may be routed to the Left/Right DACs as described in the

“Digital Input Path” section.

AUDIO DATA FORMATS (TDM MODE)

TDM is supported in master and slave mode and is enabled by register bit AIF_DAC_TDM. All audio

interface data formats support time division multiplexing (TDM) for DAC data.

Two time slots are available (Slot 0 and Slot 1), selected by register bit AIFDAC_TDM_CHAN which

selects the time slot for the DAC data.

When TDM is enabled, BCLK frequency must be high enough to allow data from both time slots to

be transferred. The relative timing of Slot 0 and Slot 1 depends upon the selected data format as

shown in Figure 70 to Figure 74.

Figure 70 TDM in Right-Justified Mode

WM8959 데이터시트(PDF) 97 Page - Wolfson Microelectronics plc