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AS3525 Datasheet(PDF) 135 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) 135 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
135
- 194
7.4.7.5
Power Save Options
When driving > 4
Ω, two power save options can be chosen.
The output driver stage can be set to only 25% drive capacity, which will reduce the maximum output power. Additionally the bias currents can be
reduced to 50% in 3 steps.
Table 116 Speaker Power-Save Options
LSP_LP
IBR_LSP
IDD_LSP (typ.)
Load
0
00
8mA
4 Ohm
1
00
2.8mA
16-32 Ohm
1
01
2.4mA
16-32 Ohm
1
10
1.9mA
16-32 Ohm
1
11
1.5mA
16-32 Ohm
BVDD = 3.3V, TA= 25oC unless otherwise mentioned
7.4.7.6
Parameter
Table 117 Speaker Amplifier Parameter
Symbol
Parameter
Notes
Min
Typ
Max
Unit
stereo mode
4
Ohm
RL
Output Load
mono differential mode
8
Ohm
Pout
Maximum Output Power
RL= 8
Ω
1
W
A0
Gain
programmable gain
-40.5
6
dB
Ax
Gain Step-Size
1.5
dB
PSRR
Power Supply Rejection Ratio 200Hz-20kHz, 720mVpp, no load
70
75
dB
Short Current Protection Level
700
mA
IOUT_pd
IOUT power down
-20
20
uA
Tpower_up
100
ms
SNR
Signal to Noise Ratio
90
dB
Mute Attenuation
120
dB
BVDD = 5V, TA= 25oC unless otherwise mentioned



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