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WM8772 データシート(PDF) 43 Page - Wolfson Microelectronics plc

部品番号 WM8772
部品情報  24-bit, 192kHz 6-Channel Codec with Volume Control
PDF  73 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

WM8772 データシート(HTML) 43 Page - Wolfson Microelectronics plc

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Production Data
WM8772EFT – 32 LEAD TQFP
w
PD Rev 4.2 October 2005
43
WM8722EFT - 32 LEAD TQFP
MASTER CLOCK TIMING
ADCMCLK/
DACMCLK
t
MCLKL
t
MCLKH
t
MCLKY
Figure 37 ADC and DAC Master Clock Timing Requirements
Test Conditions
AVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, AGND, DGND = 0V, TA = +25
oC, fs = 48kHz, DACMCLK and
ADCMCLK = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
System Clock Timing Information
ADCMCLK and DACMCLK
System clock pulse width high
tMCLKH
11
ns
ADCMCLK and DACMCLK
System clock pulse width low
tMCLKL
11
ns
ADCMCLK and DACMCLK
System clock cycle time
tMCLKY
28
ns
ADCMCLK and DACMCLK Duty
cycle
40:60
60:40
Table 13 Master Clock Timing Requirements
DIGITAL AUDIO INTERFACE – MASTER MODE
ADCLRC
DOUT
DACBCLK
DIN1/2/3
DACLRC
WM8772
CODEC
DSP/
ENCODER/
DECODER
3
ADCBCLK
Figure 38 Audio Interface - Master Mode



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