DA9012.001
25 August 2004
APPLICATION INFORMATION
VCC
VCC
+
22µF
100nF
GND
VDD
FSCXA
CWA
VDD
Output
Driver A
Glitch
Filter
Glitch
Filter
Output
Driver B
OUTA1
OUTA2
OUTA3
OUTA4
Stepper
Motor
FSCXB
CWB
Glitch
Filter
Glitch
Filter
Output
Driver C
µ
C
OUTB1
OUTB2
OUTB3
OUTB4
Stepper
Motor
FSCXC
CWC
Glitch
Filter
Glitch
Filter
Output
Driver D
OUTC1
OUTC2
OUTC3
OUTC4
Stepper
Motor
FSCXD
CWD
Glitch
Filter
Glitch
Filter
Glitch
Filter
OUTD1
OUTD2
OUTD3
OUTD4
Stepper
Motor
XRESET
VSS
10
kΩ
VSS
MAS9012A4
GND
GND
Figure 3.
Typical MAS9012A4 quad stepper motor driver application circuit
GND
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 ]
