WM8912GEFLSLASHV datasheet(57/128 Pages) WOLFSON

部件名	WM8912GEFL/V

功能描述	Ultra Low Power DAC with Headphone Driver for Portable Audio Applications

PDF	128 Pages

Scroll/Zoom	100%

制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

标志

57 / 128 page

Production Data

WM8912

PD, Rev 4.0, September 2010

Figure 35 DSP Mode Audio Interface (mode A, AIF_LRCLK_INV=0, Slave)

Figure 36 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 WM8912 will

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

“Digital Mixing” section.

AUDIO DATA FORMATS (TDM MODE)

TDM is supported in master and slave mode and is enabled by the AIFDAC_TDM register bit. 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 the AIFDAC_TDM_CHAN register bit.

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 37 to Figure 41.

Figure 37 TDM in Right-Justified Mode

WM8912GEFL/V 数据表(PDF) 57 Page - Wolfson Microelectronics plc