Mp CMOS Image Sensor from the Canon EOS 50D DSLR Camera

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1 Canon Mp CMOS Image Sensor from the Canon EOS 50D DSLR Camera Partial Circuit Analysis For questions, comments, or more information about this report, or for any additional technical needs concerning semiconductor technology, please call Sales at Chipworks Richmond Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel:

2 Canon Mp CMOS Image Sensor Some of the information in this report may be covered by patents, mask and/or copyright protection. This report should not be taken as an inducement to infringe on these rights Chipworks Incorporated This report is provided exclusively for the use of the purchasing organization. It can be freely copied and distributed within the purchasing organization, conditional upon the accompanying Chipworks accreditation remaining attached. Distribution of the entire report outside of the purchasing organization is strictly forbidden. The use of portions of the document for the support of the purchasing organization's corporate interest (e.g., licensing or marketing activities) is permitted, as defined by the fair use provisions of the copyright act. Accreditation to Chipworks must be attached to any portion of the reproduced information. CAR CYKK Revision 1.0 Published: January 28, 2009

3 Canon Mp CMOS Image Sensor Table of Contents Overview Schematics Cell Library Signal Cross-Reference List About Chipworks

4 Canon Mp CMOS Image Sensor Overview List of Figures... Page 1 List of Schematics... Page 1 Introduction... Page 4 Brief Design Overview... Page 4 Component Description... Page 8 Device Summary Sheet... Page 11

5 Canon Mp CMOS Image Sensor Page 1 List of Figures To view, please click on the appropriate bookmark in the panel on the left Package Markings Die Photograph Die Photograph Metal Die Architecture List of Schematics Top Level Diagram Pixel Array Pixel Cell Row Control Vertical Scan Circuitry Row Drivers Row Drivers Row Drivers Row Drivers Row Driver Row Select and Reset Driver Transfer Driver D Flip-Flop D Flip-Flop Row Control Logic Row Control Logic Row Control Logic Clock Buffers Control Signal Buffers Reset Signal Buffers Control Logic

6 Canon Mp CMOS Image Sensor Page Column Readout Circuitry Sense Amplifier CDS Circuit Voltage Follower Block Column Signal Switches Active Column Signal Switches Data Output Multiplexer Data Signal Switch Data Signal Switch Column Scan Circuitry Horizontal Scan Chain - Section Horizontal Scan Chain - Section Horizontal Scan Chain - Section Horizontal Scan Cell Horizontal Scan Cell Data Switch Control - Section Data Switch Control - Section Data Switch Control - Section Data Switch Control Cell Data Switch Control Logic Data Output Control Latch Scan Chain Reset Logic Section Address Buffers Clock Buffers Bias Generator Primary Bias Generator Column Loads Bias Sense Amplifier Bias Sense Amplifier Bias Sense Amplifier Bias Sense Amplifier Bias CDS Circuit Bias CDS Circuit Bias 2

7 Canon Mp CMOS Image Sensor Page Data Line Precharge and Equalize Data Line Precharge Control Data Line Equalize Control Data Output Amplifiers Data Output Amplifier Differential Amplifier Differential Amplifier Output Follower Bias Generator Bias Generator Data Output Bias Generator Data Output Enable Buffer

8 Canon Mp CMOS Image Sensor About Chipworks About Chipworks Chipworks is the recognized leader in reverse engineering and patent infringement analysis of semiconductors and electronic systems. The company s ability to analyze the circuitry and physical composition of these systems makes them a key partner in the success of the world s largest semiconductor and microelectronics companies. Intellectual property groups and their legal counsel trust Chipworks for success in patent licensing and litigation earning hundreds of millions of dollars in patent licenses, and saving as much in royalty payments. Research & Development and Product Management rely on Chipworks for success in new product design and launch, saving hundreds of millions of dollars in design, and earning even more through superior product design and faster launches. Contact Chipworks To find out more information on this report, or any other reports in our library, please contact Chipworks at Chipworks 3685 Richmond Road, Suite 500 Ottawa, Ontario K2H 5B7 Canada T F Web site: info@chipworks.com Please send any feedback to feedback@chipworks.com