NXP Semiconductors PCA9685, Руководство пользователя

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NXP Semiconductors
UM10574
PCA9685 demonstration board OM13332
© NXP Semiconductors N.V. 2014. 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: 1 April 2014
Document identifier: UM10574
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
13. Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1 Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2 Static handling requirements . . . . . . . . . . . . . . 3
3.3 Minimum system requirements. . . . . . . . . . . . . 3
3.4 Power requirements . . . . . . . . . . . . . . . . . . . . . 3
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1 I2C demo board 2005-1 and WIN-I2CUSB Lite
software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.2 OM13332 connection to I2C demo board
2005-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.3 OM13332 connection to Win-I2CUSB
hardware adapter board . . . . . . . . . . . . . . . . . . 5
5 Hardware description . . . . . . . . . . . . . . . . . . . . 6
6 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7 OM13332 demonstration board main
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8 PCA9685 evaluation steps . . . . . . . . . . . . . . . . 8
8.1 Dimming and brightness control for individual
LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8.2 Dimming and brightness control for all LEDs
and Prescale. . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
10 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 12
11 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
12 Legal information. . . . . . . . . . . . . . . . . . . . . . . 13
12.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12.2 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
12.3 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
13 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14