AS3604

austriami crosyst ems

Preliminary Product Brief and AS3603/04 Delta Sheet, Confidential

www.austriamicrosystems.com (ptr)

Revision 1.0 / 20060505

3 - 4

Figure

2 – AS3604 block diagram

AS3604

Power Management

Unit

VBAT

Vibrator

Buzzer

Current Source

4x(0.6-160mA)

Step Up DC/DC

Converter

<=15V

45mA

C2

330nF

L1 22 H

D1

MBR0520

C1

1 F

VBAT

CURR4 CURR3 CURR2 CURR1

STEPUP

CAPP

CAPN

Charge Pump

4.74V-5.25V

20mA

V5_6

V2_5

Analog LDO

Low Noise

2.5-3.2V

150mA

Analog LDO

Low Noise

1.85-3.4V

150mA

RF LDO

Low Noise

1.85-3.4V

150mA

RF LDO

Low Noise

1.85-3.4V

150mA

RF LDO

Low Noise

1.85-3.4V

200mA (<=2.6V)

RF LDO

Low Noise

1.85-3.4V

200mA (<=2.6V)

C3

1 F

VANA_1

C4

1 F

VBAT_1

C5

1 F

VANA_2

C6

1 F

VRF_1

C8

1 F

VBAT_4

C9

1 F

3.0-5.5V

3.0-5.5V

VRF_2

C10

1 F

VRF_3

C11

1 F

VBAT_5

C12

1 F

3.0-5.5V

VRF_4

C13

1uF

V2_5

C7

F

V2_5

on switch

GPIO1

GPIO2

GPIO3

Interrupt, LCD

Control etc

Internal LDO

2.5V

10mA

GPIO

VANA_1

V5_6

Digital LDO

0.75-2.5V

200mA

Digital LDO

0.75-2.5V

200mA

VDIG_1

C14

1 F

VDIG_2

C15

1 F

VDD_DIG

C30

1 F

1.0-5.5V

Feedback

Synchronous Step Down DC/DC

Converter 2.2MHz

0.6-3.4V, 500mA

SIM LDO

3.0V, 20mA

VBAT_2

3.0-5.5V

L2

H

C18

10 F

C17

1 F

C16

1 F

LX

C19

1 F

VSIM

POR

Pad

Rprogram

CREF

RBIAS

R7

RPROGRAM

C29

100nF

R6

220k

R5 100k

VANA_1

RESET

C28

1 F

R2

4.7k

R3

4.7k

R4

50m

VBAT

All caps

on VBAT

>= 10 F

total

C27

Q1

Si3441

R1

2k

DC

Charger

Adapter

<=15V

C26

1 F

ISENSEN

ISENSEP

VCHARGER

VGATE

LiIon

LiMH

NiMH

Battery

Charger

Fuel

Gauge

Adjustable

Charger Restart

VBAT_3

1W Audio

Amplifier

C25

100nF

AOUT_L

AIN_L

AGND

AIN_R

AOUT_R

C23

100nF

C24

100nF

IN_L

IN_R

>=4

LS3

>=4

LS2

C20

>=100 F

C21

>=100 F

3.6V Li-Ion

3.6V NiMH

4.8V NiMH

RESET

Momentary

Power Loss

Detection

(200ms)

1µF if power loss

detection is not used

6V

Overvoltage

VBAT_6

3.0-5.5V

Digital Logic and

References

I/F

Boot

ROM

VANA_1

SDI

SCLK

SDO

SCSB

Serial

Interface

V2_5 or

VBAT

ON

GND_SENSE