DA9012.001
25 August 2004
APPLICATION INFORMATION
VCC
VDD
µ
22 F
+
VCC
VDD
100nF
GND
Output
Driver A
OUTA1
FSCXA
CWA
Glitch
OUTA2
OUTA3
OUTA4
Filter
Stepper
Motor
Glitch
Filter
Output
Driver B
OUTB1
FSCXB
CWB
Glitch
Filter
OUTB2
OUTB3
OUTB4
Stepper
Motor
Glitch
Filter
µ
C
Output
Driver C
OUTC1
FSCXC
CWC
Glitch
Filter
OUTC2
OUTC3
OUTC4
Stepper
Motor
Glitch
Filter
Output
Driver D
OUTD1
FSCXD
CWD
Glitch
Filter
OUTD2
OUTD3
OUTD4
Stepper
Motor
Glitch
Filter
XRESET
Glitch
Filter
10
kΩ
MAS9012A4
VSS
VSS
GND
GND
GND
Figure 3. Typical MAS9012A4 quad stepper motor driver application circuit
The supply voltages of MAS9012 can be decoupled
with parallel connection of 22 µF and 100 nF
decoupling capacitors (see figure 3).
6 (12)
MAS [ MICRO ANALOG SYSTEMS ]
