WM8731 Wolfson Microelectronics Ltd., WM8731 Datasheet - Page 14

• Manufacturer Part Number: WM8731
• Description: WM8731 : Low Power Audio Codec With Integrated Headphone Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8731
DIGITAL AUDIO INTERFACE – MASTER MODE
Figure 4 Digital Audio Data Timing – Master Mode
Test Conditions
AVDD, HPVDD, DBDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, T
256fs unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
ADCLRC/DACLRC
propagation delay from
BCLK falling edge
ADCDAT propagation delay
from BCLK falling edge
DACDAT setup time to
BCLCK rising edge
DACDAT hold time from
BCLK rising edge
(Outputs)
ADCLRC/
DACLRC
ADCDAT
DACDAT
(Output)
BCLK
Figure 3 Master Mode Connection
Note: ADC and DAC can run at different rates
SYMBOL
WM8731
CODEC
t
t
t
t
DDA
DST
DHT
DL
ADCLRC
ADCDAT
DACLRC
DACDAT
BCLK
TEST CONDITIONS
t
DST
t
DHT
A
= +25
ENCODER/
DECODER
o
C, Slave Mode, fs = 48kHz, XTI/MCLK =
DSP
MIN
10
10
t
0
0
DL
t
DDA
TYP
AI Rev 2.3 August 2001
Advanced Information
MAX
10
10
UNIT
ns
ns
ns
ns
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