wm9711lgefl-v Wolfson Microelectronics plc, wm9711lgefl-v Datasheet - Page 49

• Manufacturer Part Number: wm9711lgefl-v
• Description: Low Power Audio Codec For Portable Applications
• Manufacturer: Wolfson Microelectronics plc

Production Data
w
AC-Link powerdown occurs when PR4 (register 26h, bit 12) is set (see “Power Management”
section).
End of Slot 2 to BITCLK and SDATAIN
low
COLD RESET (ASYNCHRONOUS, RESETS REGISTER SETTINGS)
Figure 13 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.
WARM RESET (ASYNCHRONOUS, PRESERVES REGISTER SETTINGS)
Figure 14 Warm Reset Timing
RESETB active low pulse width
RESETB inactive to BITCLK startup
delay
SYNC active high pulse width
SYNC inactive to BITCLK startup
delay
RESETB
BITCLK
PARAMETER
PARAMETER
PARAMETER
t
RST_LOW
t
t
SYMBOL
SYMBOL
SYMBOL
SYNC_HIGH
S2_PDOWN
t
t
t
RST_LOW
RST2CLK
RST2CLK
t
RST2CLK
162.8
162.4
MIN
MIN
MIN
1.0
TYP
TYP
TYP
1.3
PD Rev 4.3 August 2006
MAX
MAX
MAX
1.0
WM9711L
UNIT
UNIT
UNIT
µs
µs
ns
µs
ns
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