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AS3525 Datasheet(PDF) 14 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) 14 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
14
- 194
6.2.4 Operating Currents
Table 6
Supply currents
Symbol
Parameter
Typ
Max
Unit
Note
I_BVDD
Total current consumption at BVDD
22
340
mA (1), (2), (3)
IDD_PERI_OP
Peripheral current
2
20
mA
IDD_MEM_OP
External memory interface current
-
20
mA (2)
IDD_CORE_OP
Digital core current
20
145
mA (1), (2), (3)
IDD_USBA33T_OP USB transmitter current
30
mA
IDD_USBA33C_OP USB common blocks current
30
mA
I_Headphone
Headphone current from BVDD
2
40
mA (3)
I_Audio
Analog audio frontend current from
DVDD (2.9V) and AVDD (2.9V)
8
15
mA (1), (3)
Notes
(1) Typical condition for playback of MP3 music with 44.1 KHz / 128 kbit with 32
Ω headphones. The
internal charge pump generates VDD_CORE. No external SDRAM connected. USB2.0 in standby.
(2) Maximum condition for ARM running at 250 MHz, AHB/APB bus and memory at 64 MHz, USB 2.0 in HS
operation. For high current mode, the charge pump is disabled and IDD_CORE_OP is added to the total
current consumption at BVDD.
(3) For maximum value: assuming maximum output power of 2x40 mW sine-wave into headphones (16
Ω).
Internal loss of headphone AB amplifier is included.
In the case of standby mode or in the case of configuring the device to stopped clock, following current consumption is measured.
Table 7
Leakage currents
Symbol
Parameter
Typ
Max
Unit
Note
IDD_PERI_LEAK
1500
μA
Including USBA33T, USBA33C
IDD_MEM_LEAK
500
μA
IDD_CORE_LEAK
1000
μA
6.2.5 Temperature Range
Table 8
Temperature Range
Symbol
Parameter
Min
Typ
Max
Unit
Note
Top
Operating temperature range
0
25
85
°C
Tj
Junction temperature range
0
110
°C
Rth
Thermal Resistance
29
°C/W For CTBGA144 package



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