7083N/84N-042109-4

ENCODER

A CLOCK

B CLOCK

6

2

8

7

4

5

8

6

CK-UP

CK-DN

40193

3

A

B

4

1

+V

LS7083N

MODE

FIGURE 6A. TYPICAL APPLICATION FOR LS7083N in x4 MODE

DNCK

UPCK

+V

RBIAS

5

8

16

+V

CK

UP/DN

Vss

15

10

4516

FIGURE 6B*. TYPICAL APPLICATION FOR LS7084N in x2 MODE

*See NOTE at bottom right of Page 1

ENCODER

A CLOCK

B CLOCK

6

2

3

A

B

4

1

LS7084N

MODE

DNCK

RBIAS

5

+V

SPDT (On - Off - On)

8

7

UPCK

Figure 4. Tow vs RBIAS, k

100

200

300

400

500

250

500

750

1000

1250

1500

2000

25

30

20

15

10

5

4

6

8

10

12

Figure 5. Tow vs RBIAS, M

2

35

GND

B

A

B

MODE

CLK

U/D

RBIAS

A

2

3

5

4

6

7

8

1M

+5V

B1

W1

CLK

U/D

1

2

A1

A1

3

4

8

7

6

5

CS

B1

W1

FIGURE 7. Rotary Encoder Control of Digital Potentiometer

AD5220

LS7084N

DIGITAL

POTENTIOMETER

GND

10k

10k

10k

10k

0.01uF

Part Number:

RE11CT-V1Y12-EF2CS

1

0.01uF