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PCA1462U/7 データシート(PDF) 10 Page - NXP Semiconductors

部品番号 PCA1462U/7
部品情報  32 kHz oscillator, amplitude regulated with excellent frequency stability
PDF  24 Pages
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA1462U/7 データシート(HTML) 10 Page - NXP Semiconductors

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1998 Apr 21
10
Philips Semiconductors
Product specification
32 kHz watch circuits with adaptive motor
pulse
PCA146x series
Correction sequence (see Fig.8)
If a missing step is detected, a correction sequence is produced. This consists of a small pulse (tC1) which gives the motor
a defined position and after 29.30 ms a pulse of stage 8 (tC2) to turn the motor.
Fig.8 Correction sequence after a missing motor step with motor connected.
MSA943
MOTOR
PULSE
DETECTION
CORRECTION SEQUENCE
t P
t C1
t D
M1 - M2
V
= 977
µs
t C = 30.27 ms t P
t C2 =t P



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