DA9012.001

25 August 2004

2 (12)

BLOCK DIAGRAMS

Glitch

Filter

Output

Driver A

Glitch

Filter

FSCX

CW

VSS

VDD

XRESET

OUTA1

OUTA2

OUTA3

OUTA4

Glitch

Filter

MAS9012A1

Glitch

Filter

Output

Driver A

Glitch

Filter

FSCXA

CWA

Glitch

Filter

Output

Driver B

Glitch

Filter

FSCXB

CWB

VSS

VDD

XRESET

OUTA1

OUTA2

OUTA3

OUTA4

OUTB1

OUTB2

OUTB3

OUTB4

Glitch

Filter

MAS9012A2

Figure 1. Block diagrams of single and dual output stepper motor driver ICs MAS9012A1 and MAS9012A2

Glitch

Filter

Output

Driver A

Glitch

Filter

FSCXA

CWA

Glitch

Filter

Output

Driver B

Glitch

Filter

FSCXB

CWB

Glitch

Filter

Output

Driver C

Glitch

Filter

FSCXC

CWC

VSS

VDD

XRESET

OUTA1

OUTA2

OUTA3

OUTA4

OUTB1

OUTB2

OUTB3

OUTB4

OUTC1

OUTC2

OUTC3

OUTC4

Glitch

Filter

MAS9012A3

Glitch

Filter

Output

Driver A

Glitch

Filter

FSCXA

CWA

Glitch

Filter

Output

Driver B

Glitch

Filter

FSCXB

CWB

Glitch

Filter

Output

Driver C

Glitch

Filter

FSCXC

CWC

Glitch

Filter

Output

Driver D

Glitch

Filter

FSCXD

CWD

VSS

VDD

XRESET

OUTA1

OUTA2

OUTA3

OUTA4

OUTB1

OUTB2

OUTB3

OUTB4

OUTC1

OUTC2

OUTC3

OUTC4

OUTD1

OUTD2

OUTD3

OUTD4

Glitch

Filter

MAS9012A4

Figure 2. Block diagrams of triple and quad output stepper motor driver ICs MAS9012A3 and MAS9012A4