WM8912 datasheet(54/129 Pages) CIRRUS

No. de pieza	WM8912

Descripción Electrónicos	Ultra Low Power DAC with Headphone Driver

PDF	129 Pages

Scroll/Zoom	100%

Fabricante Electrónico	CIRRUS [Cirrus Logic]

Página de inicio	http://www.cirrus.com

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54 / 129 page

WM8912

Production Data

PD, Rev 4.1, February 2013

In master mode, LRCLK is derived from BCLK via a programmable division set by LRCLK_RATE.

The BCLK input to this divider may be internal or external, allowing mixed master and slave modes.

The direction of these signals and the clock frequencies are controlled as described in the “Digital

Audio Interface Control” section.

BCLK and LRCLK can be enabled as outputs in Slave mode, allowing mixed Master/Slave operation -

see “Digital Audio Interface Control”.

OPERATION WITH TDM

Time division multiplexing (TDM) allows multiple devices to transfer data simultaneously on the same

bus. The WM8912 supports TDM in master and slave modes for all data formats and word lengths.

TDM is enabled and configured using register bits defined in the “Digital Audio Interface Control”

section.

Figure 27 TDM with WM8912 as Master

Figure 28 TDM with other DAC as Master

Figure 29 TDM with Processor as Master

WM8912 Datasheet(PDF) 54 Page - Cirrus Logic