WM8778(2004) 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM8778
(Rev.:2004)

24-bit, 192kHz Stereo Codec

Wolfson Microelectronics plc 

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WM8778

ADCBCLK/

DACBCLK

(Output)

ADCLRC/

DACLRC

(Outputs)

DOUT

DIN

tDL

tDDA

tDST

tDHT

Figure 3 Digital Audio Data Timing – Master Mode

Test Conditions

AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25oC, Master Mode, fs = 48kHz, ADC/DACMCLK = 256fs unless

otherwise stated.

PARAMETER

SYMBOL

Audio Data Input Timing Information

ADC/DACLRC propagation

tDL

delay from ADC/DACBCLK

falling edge

DOUT propagation delay

tDDA

from ADCBCLK falling edge

DIN setup time to

tDST

DACBCLK rising edge

DIN hold time from

tDHT

DACBCLK rising edge

TEST CONDITIONS

MIN

TYP

MAX

UNIT

0

10

ns

0

10

ns

10

ns

10

ns

Table 2 Digital Audio Data Timing – Master Mode

DIGITAL AUDIO INTERFACE – SLAVE MODE

DACBCLK

ADCBCLK

WM8776 ADCLRC

CODEC DACLRC

DOUT

DIN

DVD

Controller

Figure 4 Audio Interface – Slave Mode

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PP Rev 1.7 June 2004

9

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