Advanced Information
WM9707
DETAILED TIMING DIAGRAMS
Test Characteristics:
AVDD = 5V, GND = 0V …………..TA = 0oC to +70oC, unless otherwise stated.
DVDD = 3.3V, GND = 0V …………..TA = 0oC to +70oC, unless otherwise stated.
All measurements are taken at 10% to 90% VDD, unless otherwise stated. All
the following timing information is guaranteed, not tested.
AC-LINK LOW POWER MODE
SLOT 1 SLOT 2
SYNC
BIT_CLK
WRITE
DON’T
CARE
DATA PR4
TO 0X20
SDATA_OUT
SDATA_IN
tS2_PDOWN
Figure 1 AC-Link Powerdown Timing
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
End of slot 2 to BITCLK SDATIN
low
tS2_PDOWN
1.0
µs
COLD RESET
tRST_LOW
tRST2CLK
RESETB
BIT_CLK
Figure 2 Cold Reset Timing
PARAMETER
SYMBOL
tRST_LOW
tRST2_CLK
MIN
1.0
TYP
MAX
UNIT
µs
RESETB active low pulse width
RESETB inactive to BIT_CLK
startup delay
162.8
ns
WOLFSON MICROELECTRONICS LTD
AI Rev 2.2 January 2001
7
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
