wm9708 Wolfson Microelectronics plc, wm9708 Datasheet - Page 9

• Manufacturer Part Number: wm9708
• Description: Ac?97 Revision 2.1 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
AC-LINK LOW POWER MODE
COLD RESET
w
DETAILED TIMING DIAGRAMS
Test Characteristics:
AVDD = 5V, GND = 0V …………..T
DVDD = 3.3V, GND = 0V …………..T
All measurements are taken at 10% to 90% VDD, unless otherwise stated. All
the following timing information is guaranteed, not tested.
Figure 1 AC-Link Powerdown Timing
Figure 2 Cold Reset Timing
PARAMETER
End of slot 2 to BITCLK SDATIN
low
PARAMETER
RESETB active low pulse width
RESETB release (or rising edge) to
BITCLK startup delay
SDATAOUT
RESETB
SDATAIN
BITCLK
BITCLK
SYNC
SLOT 1
TO 0X20
WRITE
t
S2_PDOWN
SLOT 2
DATA PR4
A
t
= 25
RST_LOW
A
= 25
o
SYMBOL
t
SYMBOL
C, unless otherwise stated.
S2_PDOWN
t
t
RST2_CLK
RST_LOW
o
C, unless otherwise stated.
DON'T
CARE
t
RST2CLK
162.8
1.0
MIN
MIN
TYP
TYP
PD, Rev 4.2, August 2009
MAX
1.0
MAX
WM9708
UNIT
UNIT
μs
μs
ns
9