AS3658
Product Brief
Figure 1 – Blockdiagram AS3658
1 x 0.6V-3.4V / up to 1600mA
2 x 0.6V-3.4V / 500mA
VOUT1
VOUT2
VOUT3
VSUPPLY,
VOUT1-3
VDIG1
200mA
VDIG2
200mA
VDIG3
200mA
DCDC
Step Down
DVM
VBUS
VSUPPLY
USB
Charger
(<800mA)
DCDC
Step Down
DCDC
Step Down
LDO
0.75V-2.5V
LDO
0.75V-2.5V
LDO
0.75V-2.5V
LDO
0.75V-2.5V
VDIG4
200mA
VCHARGER
General
Purpose
ADC
Watchdog
Overtemp
Protection
LDO
1.85V-3.4V
LDO
1.85V-3.4V
VRF1
400mA
VRF2
250mA
VRF3
250mA
VCPOUT
5V/100mA
R
PROGRAM
Interrupt
Step Down DCDC
(Input 5V-15V/50V)
Step Down
Charger
Voltage
Monitors /
Reset
Boot ROM
LDO
1.85V-3.4V
Charge
Pump
LiIon Battery
Fuel
Gauge
88bit
PROM
Unique
ID
Boot
Voltages &
Sequence
Boot ROM Index
Four GPIO
or Current
Sources
GPIO or
Current
Sources
AS3658
Power and Audio
Management Unit
I/F
Interrupt
DCDC
Step Up
(Voltage)
VSTEPUP1
SDA
SCL
VDAC
Two Wire
Interface
Audio supply
Touchscreen
I/F (10 Bit)
DCDC
Step Up
(Voltage or
Current)
VSTEPUP2
LDO
2.9V
I2S I/O 1
I2S I/O 2
or PCM
I2S Output 3
alternative function
SPDIF Output 4
Touchscreen
I2S
I2S / PCM
I2S
SPDIF
5 Band
Equalizer
94dB SNR
18bit
48ks DAC
DAC
-40.5dB
to +6dB
82dB SNR
16bit/16ks
16ks ADC
ADC
-40.5dB
to +6dB
Headphone
Out
Line
Out
RTC &
Alarm
Backup
Bat. Chrg
-34.5dB
to +12dB
Mic (mono)
Bias+Amp
LineIn
Microphone
and MicSupply
LineOut
Headphone
2
nd
Headphone Out
(e.g. FM Transmitter)
www.austriamicrosystems.com (ptr)
Revision 1.4 / 20071217
2-3
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
