WM8802 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
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WM8802 Datasheet PDF : 65 Pages
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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 TEST CONDITIONS
MIN
XMODE pulse width, Low
tRST dw
200
INT pulse width, Low
tINT uw
1
5
CL pulse width, Low
tCL dw
100
CL pulse width, High
tCL uw
100
CL, CE setup time
tCL setup
50
CL, CE hold time
tCE hold
50
CL, DI setup time
tDI setup
50
CL, DE hold time
tDI hold
50
CL, CE hold time
tCL hold
50
CL, DO delay time
tCL to DO
−
CE, DO delay time
tCE to DO
−
Notes:
1.
When INTOPF is set to "1", fs = input sampling frequency
TYP
−
1/fs
−
−
−
−
−
−
−
−
−
MAX
−
36
−
−
−
−
−
−
−
20
20
UNIT
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
tINTuw
INT
tCLuw tCLdw
CL
tCEhold
CE
tDIsetup
tDIhold
DI
tCEtoDO
DO
Hi-Z
tCEsetup
tCLhold
tCLtoDO
Figure 2 Micro-controller Interface AC Characteristics
w
PP Rev 1.1 April 2004
9
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