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AS3525 Datasheet(PDF) 125 Page - ams AG

Part # AS3525
Description  Advanced Audio Processor System
PDF  194 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3525 Datasheet(HTML) 125 Page - ams AG

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AS3525-A/-B C22O22
Data Sheet, Confidential
© 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.
www.austriamicrosystems.com
Revision 1.13
125
- 194
7.4.3.8
Register Description
Table 103 System Register
Name
Base
Default
System
I2C audio master
0x21
System Settings Register
Offset: 0x20
This register is reset at a DVDD-POR.
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
PVDDp
0
R/W
PVDD trimming:
0: Vnom
1: Vnom *17/18
2
IOVDDp
0
R/W
IOVDD trimming:
0: IOVDD = 3.11V (nominal)
1: IOVDD = 2.94V
1
EnWDogPwdn
0
R/W
0: forced power down through watchdog is disabled
1: forced power down through watchdog is enabled (no serial
interface reading within 1s)
0
PwrUpHld
1
R/W
0: power up hold is cleared and supply is switched off
1: set to on after power on
Table 104 USB_UTIL Register
Name
Base
Default
USB_UTIL
I2C audio master
0x00
USB Utility Register
Offset: 0x17
This register is reset at a DVDD-POR.
Bit
Bit Name
Default
Access
Bit Description
7..5
000
n/a
4
LDO6_on
0
R/W
0: UVDD generation disabled
1: LDO6 for generating UVDD enabled.
3:2
COMP_TH<1:0>
0
R/W
Sets the threshold for the VBUS comparator
00: 4.5V
01: 3.18V
10: 1.5V
11: 0.6V
1
SKIP_ENAB
0
R/W
0: normal operation
1: enables the skip mode for the VBUS 1:2 charge pump. This
is increasing the efficiency for smaller loads, but increasing
the VBUS ripple.
0
CP_5V_on
0
R/W
0: disables VBUS charge pump
1: enables VBUS charge pump



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