FEDL9212-01

OKI Semiconductor

ML9212

11/17

[Bit correspondence between segment output and segment data]

SEG n

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Segment data

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

S16

SEG n

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

Segment data

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

Digital Dimming Data Input [Function Mode: 4]

• ML9212 receives the digital dimming data when function mode 4 is selected.

• The output duty changes in the range of 0/1024 (0%) to 1016/1024 (99.2%) for each grid.

• The 10-bit digital dimming data is input from LSB.

[Data Format]

Input Data

: 13 bits

Digital Dimming Data

: 10 bits

Mode Data

: 3 bits

Bit

1

2

3

4

5

6

7

8

9

10

11

12

13

Input DATA

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

M0

M1

M2

(LSB)

Dimming Data

(MSB)

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

Duty Cycle

0

0

0

0

0

0

0

0

0

0

0/1024

1

0

0

0

0

0

0

0

0

0

1/1024

1

1

1

0

1

1

1

1

1

1

1015/1024

0

0

0

1

1

1

1

1

1

1

1016/1024

1

0

0

1

1

1

1

1

1

1

1016/1024

1

1

1

1

1

1

1

1

1

1

1016/1024

Master Mode

Master Mode is selected when M/

S pin is set at High level. The master mode operation is as follows:

• The input levels of DIM IN, SYNC IN1 and SYNC IN2 are ignored, and these pins should be connected to

• The pulse width of

GRID1 to 3 and SEG1 to 32 are controlled by the internal digital dimming circuit.

• The segment Latch1 to 3 corresponding to

GRID1 to 3 are selected by the internal timing generator.

Digital Dimming Data (10 bits)

Mode Data

(3 bits)

LSB

MSB