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AN75779 - How to Implement an Image Sensor Interface with EZ-USB® FX3™ in a USB Video Class (UVC) Framework

Last Updated: 03/11/2014
Version: *D

The high bandwidth provided by USB 3.0 puts high demands on ICs that connect peripherals to USB. This application note focuses on a popular USB 3.0 application: a camera (image sensor interfaced with EZ-USB® FX3™) streaming uncompressed data into a PC. The application note highlights the FX3 features specifically designed to maximize data throughput without sacrificing interface flexibility. This application note also gives implementation details about the USB Video Class (UVC). Conforming to this class allows the camera device to operate using built-in PC drivers and Host applications, such as AMCap and VLC Media Player. Finally, the application note shows you how to use the flexible image sensor interface in FX3 to connect two image sensors in order to implement 3-D imaging and motion-tracking applications.

Introduction

The high bandwidth provided by USB 3.0 puts high demands on ICs that connect peripherals to USB. A popular example is a camera streaming uncompressed data into a PC. In this application note, a converter that connects to the image sensor on one side and to a USB 3.0 Host PC on the other side is implemented using the Cypress EZ-USB® FX3™ chip. FX3 uses its General Programmable Interface, Gen 2 (GPIF II), to provide the image sensor interface, and its SuperSpeed USB unit to connect to the PC. The FX3 firmware converts the data coming from the image sensor into a format compatible with the USB Video Class (UVC). Conforming to this class allows the camera to operate using built-in OS drivers, making the camera compatible with Host applications, such as AMCap and VLC Media Player.


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Related Files

    File Title Language File Size Last Updated
      AN75779.pdf Chinese 2 MB 04/23/2014
      AN75779.pdf English 2 MB 09/27/2013
      AN75779.zip English 6 MB 09/27/2013
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Spec No: 001-75779; Sunset Owner: RAJV; Secondary Owner: HBM; Sunset Date: 06/15/20

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Spec No: 001-75779; Sunset Owner: RAJV; Secondary Owner: HBM; Sunset Date: 06/15/20