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WM8802
MICROCONTROLLER INTERFACE AC CHARACTERISTICS
Test Conditions
I/F AC Characteristics at Ta = 25oC, AVDD = DVDD = 3.3V, AGND = DGND = 0V
PARAMETER
SYMBOL
tRST dw
tINT uw
TEST CONDITIONS
MIN
200
5
TYP
−
MAX
−
UNIT
µs
XMODE pulse width, Low
INT pulse width, Low
CL pulse width, Low
CL pulse width, High
CL, CE setup time
CL, CE hold time
CL, DI setup time
CL, DE hold time
CL, CE hold time
CL, DO delay time
CE, DO delay time
1
1/fs
−
36
−
µs
tCL dw
100
100
50
50
50
50
50
−
ns
tCL uw
−
−
ns
tCL setup
tCE hold
tDI setup
tDI hold
−
−
ns
−
−
ns
−
−
ns
−
−
ns
tCL hold
tCL to DO
tCE to DO
−
−
ns
−
20
20
ns
−
−
ns
Notes:
1.
When INTOPF is set to "1", fs = input sampling frequency
tINTuw
INT
tCLuw tCLdw
CL
tCEsetup
tCEhold
tCLhold
CE
DI
tDIsetup
tDIhold
tCEtoDO
tCLtoDO
Hi-Z
DO
Figure 2 Micro-controller Interface AC Characteristics
PP Rev 1.1 April 2004
9
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
