Application Note (3)
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ESD and EMC sensitivity of IC[AN10853]
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Handling bare die[AN10706]
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The PCA2002 is a CMOS integrated circuit for battery operated wrist watches with a 32 kHz quartz crystal as the timing element and a bipolar stepping motor. The quartz crystal oscillator and the frequency divider are optimized for minimum current consumption. A timing accuracy of 1 ppm is achieved with a programmable, digital frequency adjustment.
The output period and the output pulse width can be programmed. It can be selected between a full output pulse or a chopped output pulse with a duty cycle of 75 %. In addition, a stretching pulse can be added to the primary driving pulse.
A pad RESET is provided (used for stopping the motor) for accurate time setting and for accelerated testing of the watch.
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Part | Order | CAD Model | Status | Budgetary Price excluding tax |
---|---|---|---|---|
Active | 1K @ US$0.31 | |||
Active | 1K @ US$0.25 |
PCA2002
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