WM8731CSEFL/R View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

WM8731CSEFL/R

Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates

Cirrus Logic 

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WM8731 / WM8731L

DIGITAL AUDIO INTERFACE – MASTER MODE

Production Data

BCLK

ADCLRC

WM8731

CODEC

DACLRC

ADCDAT

DACDAT

Note: ADC and DAC can run at different rates

Figure 3 Master Mode Connection

DSP

ENCODER/

DECODER

BCLK

(Output)

ADCLRC

DAC/LRC

(Outputs)

ADCDAT

t

DL

t DDA

DACDAT

t DST

t DHT

Figure 4 Digital Audio Data Timing – Master Mode

Test Conditions

AVDD, HPVDD, DBDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25oC, Slave Mode, fs = 48kHz, XTI/MCLK =

256fs unless otherwise stated.

PARAMETER

SYMBOL

Audio Data Input Timing Information

ADCLRC/DACLRC

tDL

propagation delay from

BCLK falling edge

ADCDAT propagation delay

tDDA

from BCLK falling edge

DACDAT setup time to

tDST

BCLCK rising edge

DACDAT hold time from

tDHT

BCLK rising edge

TEST CONDITIONS

MIN

TYP

MAX

UNIT

0

10

ns

0

35

ns

10

ns

10

ns

w

PD, Rev 4.9, October 2012

16

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