WM8581 datasheet(44/94 Pages) WOLFSON

No. de pieza	WM8581

Descripción Electrónicos	Multichannel CODEC with S/PDIF Transceiver

PDF	94 Pages

Scroll/Zoom	100%

Fabricante Electrónico	WOLFSON [Wolfson Microelectronics plc]

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

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WM8581

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PP Rev 1.0 March 2006

PRIMARY AUDIO INTERFACE TRANSMITTER (PAIF TX)

The PAIF Transmitter requires a left-right-clock (LRCLK) and a bit-clock (BCLK). These can be

supplied externally (slave mode) or they can be generated internally by the WM8581 (master mode).

The master mode LRCLK/BCLK are created by the Master Mode Clock Gen module. The control of

this module is described on page 34. The clock supplied to this module can be ADCMCLK,

PLLACLK, PLLBCLK, or MCLK and is selected by the internal signal paiftxms_clksel’. If the PAIF

Transmitter is sourcing the S/PDIF Receiver, it is recommended that the interface operate in master

mode. For this path, paiftxms_clksel selects PLLACLK. For all other digital routing options,

paiftxms_clksel selects whichever clock the adc_clk is using.

If in slave mode, and adc_clk is set to be MCLK, then the PAIFRX_BCLK is used as the BCLK for

the PAIF Transmitter.

Figure 29 PAIF Transmitter Clock Selection

WM8581 Datasheet(PDF) 44 Page - Wolfson Microelectronics plc