CF5741AA Datasheet, PDF (6/7 Pages) Nippon Precision Circuits Inc – Analog Clock CMOS IC

CF5741 series
Test Function
Fundamental frequency alarm output function
AI goes to 1/2V_DD when AO1 and AO2 output alarm fundamental frequency. This frequency can used to
adjust frequency.
AI
(Active Low)
fCY (Hz)
1/2VDD
fPW(Hz)
AO1
(Active High)
*1
AO2/F
(Active High)
AO2/F*2
(Active Low)
*1 : AO2 / F is the reverse phase of AO1, when output is active.
*2 : AO2 / F is complete reverse phase of AO1.
f_PW : Alarm fundamental frequency
f_CY : Alarm modulation frequency
Gain fast function
RST/TC is active level more than 125 msec. And RST/TC input outside clock when motor output gain fast.
t_CPW is more less than 0.9765625 msec.
tRES
tCPW
RST/TC
(Active Low)
t_RES ≥ 125msec
t_CPW ≤ 0.9765625msec
NIPPON PRECISION CIRCUITS—6