PBM 3960/1

8

Figure 14. Typical application in a microprocessor based system.

D0

D7

A0

A1

WR

CS

RESET

VV

PBM 3960/1

21

2

19

4

20

3

18

5

1

15

6

22

16

17

7

14

To

mP

+2.5V

Sign

CD

DA

1

1

1

Sign

CD

DA

2

2

2

SS

VDD

Ref

7

8

9

16

15

14

Phase

CD

V

Phase

CD

V

1

1

2

2

R1

R2

E

C

E

C

GND

RC

PBL 3771/1

15 kW

3 300 pF

1.0 W

1.0 W

M

M

M

M

A1

B1

A2

B2

V

CC

VV

MM1

MM2

+5 V

4

1

19

22

11

3

20

12

5,

6,

17, 18

2

13

21

10

11

2

2

R S

STEPPER

MOTOR

V

MM

Pin numbers refer

to DIL package.

GND (V

)

1 kW

1 kW

820 pF

820 pF

R S

0.1 mF

0.1 mF

+

10 mF

V

(+5 V)

CC

GND

(V

)

CC

MM

Figure 13. Typical blockdiagram of an application without a microprocessor. Available as testboard, TB 307i/2.

Counter

PROM

PBM 3960/1

PBL 3771/1

Voltage

Reference

Control Logic

Step

Direction

Clock Up/Dn

CE

A0

WR

CS

A1

Vref

D0-D7