WM8772(2005) Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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Компоненты Описание

производитель

WM8772
(Rev.:2005)

24-bit, 192kHz 6-Channel Codec with Volume Control

Wolfson Microelectronics plc 

WM8772EDS – 28 LEAD SSOP

DIGITAL AUDIO INTERFACE – SLAVE MODE

Production Data

WM8772

CODEC

LRC

BCLK

DOUT

DIN1/2/3

DSP

ENCODER/

DECODER

3

Figure 16 Audio Interface – Slave Mode

BCLK

LRC

DIN1/2/3

DOUT

tBCH

tBCL

tBCY

tDS

tDD

tLRH

tDH

tLRSU

Figure 17 Digital Audio Data Timing – Slave Mode

Test Conditions

AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25oC, Slave Mode, fs = 48kHz, MCLK = 256fs unless otherwise

stated.

PARAMETER

SYMBOL

Audio Data Input Timing Information

BCLK cycle time

tBCY

BCLK pulse width high

BCLK pulse width low

LRC set-up time to BCLK

rising edge

tBCH

tBCL

tLRSU

LRC hold time from BCLK

tLRH

rising edge

DIN1/2/3 set-up time to

tDS

BCLK rising edge

DIN1/2/3 hold time from

tDH

BCLK rising edge

TEST CONDITIONS

MIN

TYP

MAX

UNIT

50

ns

20

ns

20

ns

10

ns

10

ns

10

ns

10

ns

w

PD Rev 4.2 October 2005

18

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