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WM8941 датащи(PDF) 15 Page - Wolfson Microelectronics plc

номер детали WM8941
подробное описание детали  Mono CODEC with Speaker Driver and Video Buffer
PDF  96 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8941 датащи(HTML) 15 Page - Wolfson Microelectronics plc

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Pre Production
WM8941
w
PP, Rev 3.3, December 2007
15
Test Conditions
DVDD=1.8V, 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
FRAME propagation delay from BCLK falling edge
tDL
10
ns
ADCDAT propagation delay from BCLK falling edge
tDDA
15
ns
DACDAT setup time to BCLK rising edge
tDST
10
ns
DACDAT hold time from BCLK rising edge
tDHT
10
ns
AUDIO INTERFACE TIMING – SLAVE MODE
Figure 3 Digital Audio Data Timing – Slave Mode
Test Conditions
DVDD=1.8V, 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 cycle time
tBCY
81.38
ns
BCLK pulse width high
tBCH
32.55
ns
BCLK pulse width low
tBCL
32.55
ns
FRAME set-up time to BCLK rising edge
tLRSU
10
ns
FRAME hold time from BCLK rising edge
tLRH
10
ns
DACDAT hold time from BCLK rising edge
tDH
10
ns
DACDAT set-up time to BCLK rising edge
tDS
10
ns
ADCDAT propagation delay from BCLK falling edge
tDD
15
ns
Note:
BCLK period should always be greater than or equal to MCLK period.



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