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WM8959 データシート(PDF) 28 Page - Wolfson Microelectronics plc

部品番号 WM8959
部品情報  Mobile Multimedia DAC with Dual-Mode Class AB/D Speaker Driver
PDF  155 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

WM8959 データシート(HTML) 28 Page - Wolfson Microelectronics plc

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WM8959
Pre-Production
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PP, May 2008, Rev 3.1
28
AUDIO INTERFACE TIMING – SLAVE MODE
Figure 6 Digital Audio Data Timing – Slave Mode
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, TA=+25
oC, Slave Mode, fs=48kHz,
MCLK=256fs, 24-bit data, unless otherwise stated.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Audio Data Input Timing Information
BCLK (or BCLK2) cycle time
tBCY
50
ns
BCLK (or BCLK2) pulse width high
tBCH
20
ns
BCLK (or BCLK2) pulse width low
tBCL
20
ns
DACLRC (or DACLRC2) set-up time to BCLK (or BCLK2)
rising edge
tLRSU
20
ns
DACLRC (or DACLRC2) hold time from BCLK (or BCLK2)
rising edge
tLRH
10
ns
DACDAT (or DACDAT2) hold time from BCLK (or BCLK2)
rising edge
tDH
10
ns
DACDAT (or DACDAT2) set-up time to BCLK (or BCLK2)
rising edge
tDS
20
ns
Note:
BCLK (or BCLK2) period should always be greater than or equal to MCLK period.



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