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WM8721 датащи(PDF) 8 Page - Wolfson Microelectronics plc

номер детали WM8721
подробное описание детали  Internet Audio DAC with Integrated Headphone Driver
PDF  37 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8721 датащи(HTML) 8 Page - Wolfson Microelectronics plc

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WM8721 / WM8721L
Production Data
w
PD Rev 4.0 November 2004
8
MASTER CLOCK TIMING
MCLK
t
XTIL
t
XTIH
t
XTIY
Figure 1 System Clock Timing Requirements
Test Conditions
AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25
oC, Slave Mode fs = 48kHz, MCLK = 256fs
unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
System Clock Timing Information
MCLK System clock pulse width high
tXTIH
18
ns
MCLK System clock pulse width low
tXTIL
18
ns
MCLK System clock cycle time
tXTIY
54
ns
MCLK Duty cycle
40:60
60:40
DIGITAL AUDIO INTERFACE – MASTER MODE
BCLK
(Output)
DACLRC
(Output)
DACDAT
t
DST
t
DHT
t
DL
Figure 2 Digital Audio Data Timing - Master Mode
Test Conditions
AVDD, HPVDD, DVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25
oC, Master Mode, fs = 48kHz, XTI/MCLK =
256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Audio Data Input Timing Information
DACLRC propagation delay
from BCLK falling edge
tDL
0
10
ns
DACDAT setup time to
BCLK rising edge
tDST
10
ns
DACDAT hold time from
BCLK rising edge
tDHT
10
ns



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