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PCA2002CX8/5/1 PDF预览

PCA2002CX8/5/1

更新时间: 2024-09-15 05:59:47
品牌 Logo 应用领域
恩智浦 - NXP 振荡器电池消费电路时钟集成电路商用集成电路智能腕表脉冲
页数 文件大小 规格书
25页 125K
描述
32 kHz watch circuit with programmable output period and pulse width

PCA2002CX8/5/1 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:BGA包装说明:BGA, DIE OR CHIP
针数:8Reach Compliance Code:unknown
风险等级:5.61Is Samacsys:N
警报:NO应用:WRIST WATCH
电池电量耗尽指示:NO商用集成电路类型:STEPPING MOTOR WATCH
显示模式:ANALOG频率微调:NO
JESD-30 代码:R-PBGA-B8长度:1.16 mm
功能数量:1端子数量:8
最高工作温度:60 °C最低工作温度:-10 °C
标称振荡器频率:32.768 KHZ封装主体材料:PLASTIC/EPOXY
封装代码:BGA封装等效代码:DIE OR CHIP
封装形状:RECTANGULAR封装形式:GRID ARRAY
电源:1.55 V认证状态:Not Qualified
座面最大高度:0.31 mm子类别:Clock ICs
最大供电电压 (Vsup):3.6 V最小供电电压 (Vsup):1.1 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子形式:BALL
端子节距:0.32 mm端子位置:BOTTOM
宽度:0.86 mmBase Number Matches:1

PCA2002CX8/5/1 数据手册

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PCA2002  
32 kHz watch circuit with programmable output period and  
pulse width  
Rev. 05 — 11 November 2008  
Product data sheet  
1. General description  
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.  
2. Features  
I Amplitude-regulated 32 kHz quartz crystal oscillator, with excellent frequency stability  
and high immunity to leakage currents  
I Electrically programmable time calibration with 1 ppm resolution stored in One Time  
Programmable (OTP) memory  
I The quartz crystal is the only external component required  
I Very low current consumption: typically 90 nA  
I Output pulses for bipolar stepping motors  
I Five different programmable output periods (1 s to 30 s)  
I Output pulse width programmable between 1 ms and 8 ms  
I Full or chopped motor pulse and pulse stretching, selectable  
I Stop function for accurate time setting and current saving during shelf life  
I Test mode for accelerated testing of the mechanical parts of the watch  
I Test bits for type recognition  
3. Applications  
I Driver circuits for bipolar stepping motors  
I High immunity motor drive circuits  
I High production volumes  

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