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WM9713 데이터시트(PDF) 86 Page - Wolfson Microelectronics plc

부품명 WM9713
상세설명  AC 97 AUDIO TOUCHPANEL CODEC
PDF  111 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9713 데이터시트(HTML) 86 Page - Wolfson Microelectronics plc

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WM9713L
Preliminary Technical Data
1
PTD, March 2004, Rev 2.2
86
AC-LINK POWERDOWN
SYNC
BITCLK
SDATAOUT
WRITE
TO 0X20
DATA PR4
DON'T
CARE
SDATAIN
SLOT 1
SLOT 2
t
S2_PDOWN
Figure 31 AC-Link Powerdown Timing
AC-Link powerdown occurs when PR4 (register 26h, bit 12) is set (see “Power Management”
section).
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
End of Slot 2 to BITCLK and SDATAIN
low
tS2_PDOWN
1.0
µs
COLD RESET (ASYNCHRONOUS, RESETS REGISTER SETTINGS)
RESETB
BITCLK
t
RST_LOW
t
RST2CLK
Figure 32 Cold Reset Timing
Note:
For correct operation SDATAOUT and SYNC must be held LOW for entire RESETB active
low period otherwise the device may enter test mode. See AC'97 specification or Wolfson
applications note WAN104 for more details.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
RESETB active low pulse width
tRST_LOW
1.0
µs
RESETB inactive to BITCLK startup
delay
tRST2CLK
162.8
ns



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