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PCA2002U PDF预览

PCA2002U

更新时间: 2024-09-12 15:47:35
品牌 Logo 应用领域
恩智浦 - NXP 电池商用集成电路智能腕表振荡器
页数 文件大小 规格书
25页 113K
描述
IC STEPPING MOTOR WATCH, UUC8, DIE-8, Clock IC

PCA2002U 技术参数

Source Url Status Check Date:2013-10-15 00:00:00生命周期:Active
零件包装代码:DIE包装说明:DIE-8
针数:8Reach Compliance Code:unknown
风险等级:5.04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:YES
JESD-30 代码:R-XUUC-N8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:UNSPECIFIED封装代码:DIE
封装形状:RECTANGULAR封装形式:UNCASED CHIP
认证状态:Not Qualified最大供电电压 (Vsup):1.36 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:NO LEAD端子位置:UPPER
Base Number Matches:1

PCA2002U 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  
 
 
 

PCA2002U 替代型号

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