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WM8731 Fiches technique(PDF) 13 Page - Wolfson Microelectronics plc

No de pièce WM8731
Description  Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates
PDF  56 Pages
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Fabricant  WOLFSON [Wolfson Microelectronics plc]
Site Internet  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8731 Fiches technique(HTML) 13 Page - Wolfson Microelectronics plc

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WM8731
Advanced Information
WOLFSON MICROELECTRONICS LTD
AI Rev 2.0 February 2001
13
DIGITAL AUDIO INTERFACE – MASTER MODE
BCLK
ADCDAT
ADCLRC
DACDAT
DACLRC
WM8731
CODEC
DSP
ENCODER/
DECODER
Note: ADC and DAC can run at different rates
Figure 3 Master Mode Connection
BCLK
(Output)
ADCDAT
ADCLRC/
DACLRC
(Outputs)
t
DL
DACDAT
t
DDA
t
DHT
t
DST
Figure 4 Digital Audio Data Timing – Master Mode
Test Conditions
AVDD, HPVDD, DBDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25
oC, Slave Mode, fs = 48kHz, XTI/MCLK =
256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Audio Data Input Timing Information
ADCLRC/DACLRC
propagation delay from
BCLK falling edge
tDL
010
ns
ADCDAT propagation delay
from BCLK falling edge
tDDA
010
ns
DACDAT setup time to
BCLCK rising edge
tDST
10
ns
DACDAT hold time from
BCLK rising edge
tDHT
10
ns



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