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WM8778 データシート(PDF) 8 Page - Wolfson Microelectronics plc

部品番号 WM8778
部品情報  24 BIT 192KHZ STEREO CODEC
PDF  50 Pages
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メーカー  WOLFSON [Wolfson Microelectronics plc]
ホームページ  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8778 データシート(HTML) 8 Page - Wolfson Microelectronics plc

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PP Rev 1.7 June 2004
8
MASTER CLOCK TIMING
MCLK
t
MCLKL
t
MCLKH
t
MCLKY
Figure 1 Master Clock Timing Requirements
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25
oC, fs = 48kHz, ADC/DACMCLK = 256fs unless otherwise
stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
System Clock Timing Information
ADC/DACMCLK System clock
pulse width high
tMCLKH
11
ns
ADC/DACMCLK System clock
pulse width low
tMCLKL
11
ns
ADC/DACMCLK System clock
cycle time
tMCLKY
28
ns
ADC/DACMCLK Duty cycle
40:60
60:40
Table 1 Master Clock Timing Requirements
DIGITAL AUDIO INTERFACE – MASTER MODE
ADCBCLK
DOUT
ADCLRC
DIN
DACLRC
WM8778
CODEC
DVD
Controller
DACBCLK
Figure 2 Audio Interface - Master Mode



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