AS3525-A/-B C22O22
Data Sheet, Confidential
7.4.1.4 Parameter
Table 97 Supply Regulator Block Characteristics
Symbol
Parameter
DVDD_POR_OFF
Notes
Min
Typ
2.15
Max Unit
V
DVDD_POR_ON
2.0
V
POR_ON/OFF_HYST
100
mV
LRCK WATCHDOG
F(LRCK)_WD_OFF
4.1
50
8
kHz
us
ON_Delay
DVDD=2.9V; Tamb=25ºC; unless otherwise specified
7.4.1.5 Register Description
Table 98 System Register
Name
Base
I2C audio master
System Settings Register
This register is reset at a DVDD-POR.
Default
0x21
System
Offset: 0x20
Bit
Bit Name
Default
Access
Bit Description
7:4
Version <3:0>
0010
R
AFE number to identify the design version
0010: revision 2
3
2
1
0
PVDDp
0
0
0
1
R/W
R/W
R/W
R/W
PVDD trimming:
0: Vnom
1: Vnom *17/18
IOVDD trimming:
0: IOVDD = 3.11V (nominal)
1: IOVDD = 2.94V
0: forced power down through watchdog is disabled
1: forced power down through watchdog is enabled (no serial
interface reading within 1s)
IOVDDp
EnWDogPwdn
PwrUpHld
0: power up hold is cleared and supply is switched off
1: set to on after power on
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