Advanced Information
WM9707
DETAILED TIMING DIAGRAMS
Test Characteristics:
AVDD = 5V, GND = 0V …………..T
A
= 0
o
C to +70
o
C, unless otherwise stated.
DVDD = 3.3V, GND = 0V …………..T
A
= 0
o
C to +70
o
C, 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
SYNC
SLOT 2
BIT_CLK
SDATA_OUT
WRITE
TO 0X20
DATA PR4
DON’T
CARE
t
S2_PDOWN
SDATA_IN
Figure 1 AC-Link Powerdown Timing
PARAMETER
End of slot 2 to BITCLK SDATIN
low
SYMBOL
t
S2_PDOWN
MIN
TYP
MAX
1.0
UNIT
µs
COLD RESET
t
RST_LOW
RESETB
t
RST2CLK
BIT_CLK
Figure 2 Cold Reset Timing
PARAMETER
RESETB active low pulse width
RESETB inactive to BIT_CLK
startup delay
SYMBOL
t
RST_LOW
t
RST2_CLK
MIN
1.0
162.8
TYP
MAX
UNIT
µs
ns
WOLFSON MICROELECTRONICS LTD
AI Rev 2.2 January 2001
7
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
