AS3683

Product Brief

© 1997-2005, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.

www.austriamicrosystems.com

Revision 1.0

3 - 4

5 Application Diagrams

Figure 2. Softflash Mode Application Diagram

Figure 3. Hardflash Mode Application Diagram

Camera

Flash

LED

1µF

GND

Exposed Pad

ADR

1

23

CLK/P2

8

STROBE/F2

11

GPIO0/P0

10

SFL/F1

16

T1/F0

17

HFL

18

DATA/P1

9

2

6

5

7

24

4

CP_OUT

13

12

240k

Ω

1 - 10k

Ω

15

19

20

21

1µF

1µF

2.2µF

2.2µF

Flash &

Preview

Battery or

CP_OUT

Feature

Softflash

Mode

Interface

Flash LEDs

Current Sinks

3 to 6

Total Current

0 to 960mA

Addressable

Block

Strobe Trigger

Pin STROBE/F2

or software

Strobe Preview

Pin GPIO0/P0

or software

General Purpose

LEDs (CURR2,

CURR3, CURR4)

Current Sinks

3

Current per Sink

0 to 160mA

Addressable

Individually

C3

R1

R4

C4

C1

C5

C6

3

AS3683

Battery

Note: Connect all 6 current sinks in parallel or use

general purpose current sink for other functions (e.g.,

indicatorlamp).

3

Feature

Hardflash

Mode

Interface

Dedicated Control

Pins for Strobe (3x) &

Preview (3x)

Flash LEDs

Current Sinks

6

Total Current

Strobe: 0 to 900mA

Preview: 0 to 480mA

Addressable

Block

Strobe Trigger

By Strobe Control

Pins

Strobe Preview By Preview Control

Pins

General Purpose

LEDs (CURR2,

CURR3, CURR4)

Current Sinks

N/A

Current per

Sink

N/A

Addressable

N/A

Preview Control

(Active-Low)

1µF

ADR

1

22

23

CLK/P2 8

GPIO0/P0

10

STROBE/F2

11

SFL/F1

16

T1/F0

17

HFL

18

DATA/P1

9

12

Selectable

240k

Ω

Battery

Strobe Control

(Active-Low)

LSB Flash

MSB Flash

LSB Preview

MSB Preview

Camera

Flash

LED

4

CP_OUT

13

14

15

2.2µF

2.2µF

Flash &

Preview

5

1µF

1µF

C3

R1

C4

C1

C5

C6

GND

Exposed Pad

AS3683

Battery