wm8580a Wolfson Microelectronics plc, wm8580a Datasheet - Page 76

• Manufacturer Part Number: wm8580a
• Description: Multichannel Codec With S/pdif Transceiver
• Manufacturer: Wolfson Microelectronics plc

WM8580
Figure 41 Typical Power up Sequence where DVDD is Powered before AVDD
Figure 42 Typical Power up Sequence where AVDD is Powered before DVDD
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Table 74 Typical POR Operation
In a real application, the designer is unlikely to have control of the relative power up sequence of
AVDD and DVDD. Using the POR circuit to monitor VMID ensures a reasonable delay between
applying power to the device and Device Ready.
SYMBOL
V
V
V
V
pora_off
pord_off
pora
porr
MIN
0.5
0.5
1.0
0.6
TYP
0.7
0.7
1.4
0.8
MAX
1.0
1.1
2.0
1.0
UNIT
V
V
V
V
PD, Rev 4.7, March 2009
Production Data
76