WM8731 datasheet(13/56 Pages) WOLFSON

Teilenummer	WM8731

Bauteilbeschribung	Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates

PDF	56 Pages

Scroll/Zoom	100%

Hersteller	WOLFSON [Wolfson Microelectronics plc]

Direct Link	http://www.wolfsonmicro.com

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13 / 56 page

WM8731

Advanced Information

WOLFSON MICROELECTRONICS LTD

AI Rev 2.0 February 2001

DIGITAL AUDIO INTERFACE – MASTER MODE

BCLK

ADCDAT

ADCLRC

DACDAT

DACLRC

WM8731

CODEC

DSP

ENCODER/

DECODER

Note: ADC and DAC can run at different rates

Figure 3 Master Mode Connection

BCLK

(Output)

ADCDAT

ADCLRC/

DACLRC

(Outputs)

DACDAT

DDA

DHT

DST

Figure 4 Digital Audio Data Timing – Master Mode

Test Conditions

AVDD, HPVDD, DBDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25

oC, Slave Mode, fs = 48kHz, XTI/MCLK =

256fs unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Audio Data Input Timing Information

ADCLRC/DACLRC

propagation delay from

BCLK falling edge

tDL

010

ADCDAT propagation delay

from BCLK falling edge

tDDA

010

DACDAT setup time to

BCLCK rising edge

tDST

DACDAT hold time from

BCLK rising edge

tDHT

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