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AS3525 Datasheet(PDF) 124 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) 124 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
124
- 194
7.4.3.5
LDO4
This LDO will be used to supply the digital processor periphery (vdd_peri). Default value is 3.11V, but it can be manually programmed to 2.94V if
needed.
•
Input Voltage BVDD
•
Output Voltage is IOVDD (3.11 or 2.94)
•
Programmable via IOVDDp bit.
•
Driver strength: 200mA
7.4.3.6
LDO6
This LDO will be used to supply the USB 2.0 OTG interface block.
•
Input Voltage BVDD
•
Output Voltage is UVDD (3.26V)
•
separate enable bit in USB_UTIL register (0x17)
•
Driver strength: 200mA
7.4.3.7
Parameter
Table 102 LDOs Block Characteristics
Symbol
Parameter
Notes
Min
Typ
Max
Unit
RON
On resistance
1
Ω
f=1kHz
70
dB
PSRR
Power supply rejection ratio
f=100kHz
40
IOFF
Shut down current
100
nA
IVDD
Supply current
without load
50
μA
Noise
Output noise
10Hz < f < 100kHz
50
μVrms
tstart
Startup time
200
μs
Vbat>3.0V
1.7
2.85
V
full prog. range
1.7
3.56
V
Vout
Output voltage
LDO1, LDO2
2.9
V
Vout_tol
Output voltage tolerance
-50
50
mV
LDO1, Static
-1
1
mV
VLineReg
Line regulation
LDO1, Transient; Slope: tr=10μs
-10
10
LDO1, Static
-1
1
mV
VLoadReg
Load regulation
LDO1, Transient; Slope: tr=10μs
-10
10
ILIMIT
Current limitation
LDO1, LDO2, LDO3, LDO4
400
mA
BVDD=4V; ILOAD=150mA; Tamb=25ºC; CLOAD =2.2μF (Ceramic); unless otherwise specified



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