WM8738
Production Data
Figure 3 Typical Power up sequence where DVDD is powered before AVDD
DVDD
DGND
AVDD
Vpora
Vpora_off
AGND
CAP
Vporr
AGND
HI
INTERNAL PORB
LO
Internal
POR active
No Power
Device Ready
Internal POR active
POR
Undefined
Figure 4 Typical Power up sequence where AVDD is powered before DVDD
Typical POR Operation (typical values, not tested)
SYMBOL
Vpora
MIN
0.5
0.5
1.0
0.6
TYP
0.7
0.7
1.4
0.8
MAX
1.0
UNIT
V
V
V
V
Vporr
1.1
Vpora_off
Vpord_off
2.0
1.0
PD Rev 4.4 August 2006
10
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