- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄17721 > PCA2002U/10AB/1,00 (NXP Semiconductors)IC WATCH CIRCUIT 32KHZ DIE FFC PDF資料下載
參數(shù)資料
| 型號： | PCA2002U/10AB/1,00 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 1/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC WATCH CIRCUIT 32KHZ DIE FFC |
| 標準包裝： | 3 |
| 系列： | * |
當前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
1.
General description
The PCA2002 is a CMOS1 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 and benefits
Amplitude-regulated 32 kHz quartz crystal oscillator, with excellent frequency stability
and high immunity to leakage currents
Electrically programmable time calibration with 1 ppm resolution stored in One Time
Programmable (OTP) memory
The quartz crystal is the only external component required
Very low current consumption: typically 90 nA
Output pulses for bipolar stepping motors
Five different programmable output periods (1 s to 30 s)
Output pulse width programmable between 1 ms and 8 ms
Full or chopped motor pulse and pulse stretching, selectable
Stop function for accurate time setting and current saving during shelf life
Test mode for accelerated testing of the mechanical parts of the watch
Test bits for type recognition
3.
Applications
Driver circuits for bipolar stepping motors
High immunity motor drive circuits
High production volumes
PCA2002
32 kHz watch circuit with programmable output period and
pulse width
Rev. 8 — 25 November 2011
Product data sheet
1.
The definition of the abbreviations and acronyms used in this data sheet can be found in Section 15.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 3314G-2-102E | TRIMMER 1K OHM 0.25W SMD |
| 3362S-1-503LF | TRIMMER 50K OHM 0.5W TH |
| 3314G-2-101E | TRIMMER 100 OHM 0.25W SMD |
| 3362S-1-502LF | TRIMMER 5K OHM 0.5W TH |
| 3362S-1-501LF | TRIMMER 500 OHM 0.5W TH |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA2003 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse and pulse period |
| PCA2003_09 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse and pulse period |
| PCA2003U/10AA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse and pulse period |
| PCA2003U/10AA/1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse and pulse period |
| PCA2003U/10AC/1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32 kHz watch circuit with programmable adaptive motor pulse and pulse period |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。