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PCA2000UAC датащи(PDF) 30 Page - NXP Semiconductors

номер детали PCA2000UAC
подробное описание детали  32 kHz watch circuit with programmable adaptive motor pulse
PDF  30 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA2000UAC датащи(HTML) 30 Page - NXP Semiconductors

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NXP Semiconductors
PCA2000; PCA2001
32 kHz watch circuit with programmable adaptive motor pulse
© NXP B.V. 2010.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 23 August 2010
Document identifier: PCA2000_2001
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
19. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7
Functional description . . . . . . . . . . . . . . . . . . . 4
7.1
Motor pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.2
Step detection . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.3
Time calibration . . . . . . . . . . . . . . . . . . . . . . . . 7
7.4
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5
Programming possibilities. . . . . . . . . . . . . . . . . 8
7.6
Programming procedure . . . . . . . . . . . . . . . . . 11
7.7
Programming the memory cells . . . . . . . . . . . 11
7.8
Checking memory content . . . . . . . . . . . . . . . 13
7.9
Frequency tuning of assembled watch . . . . . . 14
7.10
Measurement of oscillator frequency and
inhibition time . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.11
Customer testing . . . . . . . . . . . . . . . . . . . . . . 15
7.12
EOL of battery . . . . . . . . . . . . . . . . . . . . . . . . 15
8
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 16
9
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 17
10
OTP programming characteristics . . . . . . . . . 18
11
Bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 19
12
Packing information . . . . . . . . . . . . . . . . . . . . 21
12.1
Tray information . . . . . . . . . . . . . . . . . . . . . . . 21
12.2
Wafer information . . . . . . . . . . . . . . . . . . . . . . 23
13
Soldering of WLCSP packages. . . . . . . . . . . . 24
13.1
Introduction to soldering WLCSP packages . . 24
13.2
Board mounting . . . . . . . . . . . . . . . . . . . . . . . 24
13.3
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 24
13.3.1
Stand off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
13.3.2
Quality of solder joint . . . . . . . . . . . . . . . . . . . 25
13.3.3
Rework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
13.3.4
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
14
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 26
15
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
16
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 27
17
Legal information. . . . . . . . . . . . . . . . . . . . . . . 28
17.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 28
17.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
17.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
17.4
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
18
Contact information . . . . . . . . . . . . . . . . . . . . 29
19
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30



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