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參數(shù)資料
| 型號： | PCA1486 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 32 kHz watch circuits with adaptive motor pulse |
| 中文描述： | 32千赫的自適應(yīng)電機(jī)脈沖手表電路 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 118K |
| 代理商： | PCA1486 |
1998 Apr 21
8
Philips Semiconductors
Product specification
32 kHz watch circuits with adaptive motor
pulse
PCA148x series
Correction sequence
(see Fig.7)
If a missing step is detected, a correction sequence is produced. This consists of a small pulse (t
C1
) which gives the motor
a defined position and after 29.30 ms a pulse of stage 6 (t
C2
) to turn the motor.
Fig.7 Correction sequence after a missing motor step with motor connected.
MSA943
MOTOR
PULSE
DETECTION
CORRECTION SEQUENCE
tP
tC1
tD
M1 - M2
V
= 977
μ
s
tC= 30.27 ms tP
tC2= tP
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