WM8804 datasheet(46/66 Pages) WOLFSON

No. de pieza	WM8804

Descripción Electrónicos	1:1 Digital Interface Transceiver with PLL

PDF	66 Pages

Scroll/Zoom	100%

Fabricante Electrónico	WOLFSON [Wolfson Microelectronics plc]

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

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46 / 66 page

WM8804

Production Data

PD Rev 4.1 September 2007

RIGHT JUSTIFIED MODE

In Right Justified Mode, the LSB of DIN is sampled by the WM8804 on the rising edge of BCLK

preceding an LRCLK transition. The LSB of the output data (DOUT) changes on the falling edge of

BCLK preceding an LRCLK transition, and may be sampled on the next rising edge of BCLK. LRCLK

is high during the left samples and low during the right samples (Figure 19).

LEFT CHANNEL

RIGHT CHANNEL

LRCLK

BCLK

DIN / DOUT

1/fs

n-2 n-1

LSB

MSB

n-2 n-1

LSB

MSB

Figure 19 Right Justified Mode

2S MODE

In I2S Mode, the MSB of DIN is sampled by the WM8804 on the second rising edge of BCLK

following an LRCLK transition. The MSB of the output data changes on the first falling edge of BCLK

following an LRCLK transition, and may be sampled on the next rising edge of BCLK. LRCLK is low

during the left samples and high during the right samples (Figure 20).

LEFT CHANNEL

RIGHT CHANNEL

LRCLK

BCLK

DIN / DOUT

1/fs

n-2 n-1

LSB

MSB

n-2 n-1

LSB

MSB

1 BCLK

Figure 20 I2S Mode

WM8804 Datasheet(PDF) 46 Page - Wolfson Microelectronics plc