CF5705 series
FUNCTIONAL DESCRIPTION
Motor Output Waveform
T
PW
V
DD
OUT1
V
SS
T
PW
V
DD
OUT2
V
SS
T
CY
/2
T
CY
/2
The motor output waveform cycle time and output pulsewidth are set by mask option.
Reset Function
T < T
ON
RESET
(open)
V
SS
T > T
ON
V
DD
T
PW
V
DD
OUT1
V
SS
V
DD
OUT2
V
SS
T
CY
/2
T
CY
/2
T
D
Reset operation
A reset operation occurs when RESET is held HIGH
(V
DD
) for a period of 93.75 ms or greater, otherwise
Reset Release
When the reset is released, the first output pulse
occurs on the output pin opposite the output pin
where the preceding motor drive output pulse
occurred; first pulse occurs on OUT1 if previous
motor drive pulse occurred on OUT2, and vice versa.
A delay of T
CY
/2
−
0.125 to T
CY
/2 takes place from
when reset is released until the first output pulse
occurs.
the reset is ignored. When the reset pulse is valid, the
4 Hz and subsequent frequency dividers are reset.
NIPPON PRECISION CIRCUITS—5
NPC [ NIPPON PRECISION CIRCUITS INC ]
