CF5732 Series
FUNCTIONAL DESCRIPTION
Alarm input/output
AI
1/2V DD (*3)
AO
fCY
fPW
AO
(*1)
AO
(*2)
(*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive): CF5732EA, GA
(*2) AO is complete reverse phase of AO. (even output is inactive.): CF5732FA, HA, JA, KA
(*3) When AI is held at 1/2 VDD, the alarm reference, frequency is output at AO and AO.
Input Debouncing Circuit
Setting bouncing delay time prevents the circuit from the
erroneous operation by AI input bouncing (chattering.)
ton ≤ 31.25 msec : The alarm input is ignored
ton ≥ 62.5 msec : The alarm input is accepted
AI
(Active L)
tCH
tON
NIPPON PRECISION CIRCUITS-4