AS3682

Data Sheet

www.austriamicrosystems.com

Revision 2.21

18 - 43

Figure 13. Hard Flash Mode 2 Timing Diagram

The AS3682 allows for the parallel connection of up to three current sinks in Hard Flash Mode to obtain the desired

current range for the strobe current (unused current sinks can be left open).

Table 15. Hard Flash Mode 2 Strobe Current

STROBE/F2

Bit 2

SFL/F1

Bit 1

T1/F0

Bit 0

Current/

Current Sink

Cumulative Active Current Sink

11

12

13

1

1

1

0mA

0mA

0mA

0mA

1

1

0

30mA

30mA

60mA

90mA

1

0

1

50mA

50mA

100mA

150mA

1

0

0

70mA

70mA

140mA

210mA

0

1

1

90mA

90mA

180mA

270mA

0

1

0

110mA

110mA

220mA

330mA

0

0

1

130mA

130mA

260mA

390mA

0

0

0

150mA

150mA

300mA

450mA

Table 16. Hard Flash Mode 2 Backlight Current

CLK/P2

Bit 2

DATA/P1

Bit 1

GPIO0/P0

Bit 0

Current/Current Sink

(CURR2, CURR3, CURR4)

111

0mA

110

5mA

101

7mA

100

10mA

011

12mA

010

15mA

001

17mA

000

37mA

I

t

t

Strobe Current. See

Table 15 on page 18

Flash Control. See

Figure 12 on page 17

Backlight Current. See

Table 16 on page 18

Backlight Control. See

Figure 12 on page 17