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AS3654 Datasheet(PDF) 2 Page - ams AG

Part # AS3654
Description  Power Management Unit with 18 Bit Audio DAC Headphone Amplifier, DCDC Charger, 3 Buck DCDCs, 3 Boost DCDCs, 5 LDOs, Current Sinks, ADC
PDF  3 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3654 Datasheet(HTML) 2 Page - ams AG

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AS3654
austriami crosyst ems
Product Brief, Confidential
www.austriamicrosystems.com (ptr)
Revision 1.2.1 / 20060613
2 - 3
4
Block Diagram
Figure 1 – AS3654 Block Diagram
Step Down DCDC
(Input 5V-15V/50V)
VCHARGER
VBUS
VSUPPLY
USB
Charger
Step Down
Charger
Fuel
Gauge
DCDC
Step Down
VOUT1
DCDC
Step Down
VOUT2
DCDC
Step Down
VOUT3
LiIon Battery
LDO
0.75V-2.5V
VDIG1
200mA
LDO
0.75V-2.5V
VDIG2
200mA
LDO
1.85V-3.4V
VRF1
400mA
LDO
1.85V-3.4V
VRF2
150mA
Charge
Pump
VCPOUT
5V/100mA
DCDC
Step Up
(Voltage)
VSTEPUP1
DCDC
Step Up
(Voltage or
Current)
VSTEPUP2
General
Purpose
ADC
Watchdog
Overtemp
Protection
Interrupt
Voltage
Monitors /
Reset
Boot ROM
Two Wire
Interface
I2S
I2S
I2S Input 1
I2S Input 2
18 Bit
Stereo
Audio DAC
Line
Out
Headphone
Out
GPIO or
Current
Sources
Four GPIO
or Current
Sources
LineIn LineOut
Headphone
LDO
2.9V
VDAC
AS3654
Power and Audio
Management Unit
3 x 0.6V-3.4V / 500mA
SCL
SDA



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