WM8739 / WM8739L
DIGITAL AUDIO INTERFACE TIMING
XTI/MCLK
tXTIL
tXTIH
tXTIY
Advanced Information
Figure 1 System Clock Timing Requirements
Test Conditions
AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, TA = +25oC, Slave Mode fs = 48kHz, XTI/MCLK = 256fs
unless otherwise stated.
PARAMETER
SYMBOL
System Clock Timing Information
XTI/MCLK System clock pulse width
high
TXTIH
XTI/MCLK System clock pulse width
low
TXTIL
XTI/MCLK System clock cycle time
TXTIY
TEST CONDITIONS
MIN
TYP
MAX
UNIT
20
ns
20
ns
50
ns
BCLK
WM8739
ADC ADCLRC
ADCDAT
DSP
ENCODER
Figure 2 Master Mode Connection
BCLK
(Output)
ADCLRC
(Output)
ADCDAT
Figure 3 Digital Audio Data Timing – Master Mode
tDL
tDDA
AI Rev 2.2 September 2001
7