WM8958 datasheet(39/377 Pages) WOLFSON

部件名	WM8958

功能描述	Multi-Channel Audio Hub CODEC for Smartphones

PDF	377 Pages

Scroll/Zoom	100%

制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

标志

39 / 377 page

Pre-Production

WM8958

PP, August 2012, Rev 3.4

DIGITAL AUDIO INTERFACE - TDM MODE

When TDM operation is used on the ADCDATn pins, it is important that two devices do not attempt to

drive the ADCDATn pin simultaneously. To support this requirement, the ADCDATn pins can be

configured to be tri-stated when not outputting data.

The timing of the WM8958 ADCDATn tri-stating at the start and end of the data transmission is

described in Figure 6 below.

Figure 6 Audio Interface Timing - TDM Mode

Test Conditions

The following timing information is valid across the full range of recommended operating conditions.

PARAMETER

MIN

TYP

MAX

UNIT

TDM Timing - Master Mode

ADCDAT setup time from BCLK falling edge

ADCDAT release time from BCLK falling edge

TDM Timing - Slave Mode

ADCDAT setup time from BCLK falling edge

ADCDAT release time from BCLK falling edge

WM8958 数据表(PDF) 39 Page - Wolfson Microelectronics plc