egalax_empia Technology (EETI) EXC7200 Touch Screen Microcontroller Circuit Analysis of Input Analog Signal Path, Front-End of 12 Bit ADC, PLL, and Voltage References For questions, comments, or more information about this report, or for any additional technical needs concerning semiconductor and electronics technology, please call Sales at Chipworks. 3685 Richmond Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel: 613.829.0414 Fax: 613.829.0515 www.chipworks.com
EETI EXC7200 Touch Screen Microcontroller 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. 2010 Chipworks Inc. 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-1008-902 20569DYBL Revision 1.0 Published: August 17, 2010
EETI EXC7200 Touch Screen Microcontroller Table of Contents Overview Schematics Cell Library Signal Cross-Reference List About Chipworks
EETI EXC7200 Touch Screen Microcontroller Overview List of Figures...Page 1 List of Schematics...Page 1 Introduction...Page 4 Brief Design Overview...Page 5 Component Descriptions...Page 7 Device Summary...Page 10
EETI EXC7200 Touch Screen Microcontroller Page 1 List of Figures To view, please click on the appropriate bookmark in the panel on the left. 0.1.1 Package Markings 0.1.2 Package X-Ray 0.1.3 Pin Configuration 0.1.4 Die Markings 0.2.1 Die Photograph 0.2.2 Annotated Die Photograph 0.2.3 Die Photograph Metal 1 0.2.4 Die Photograph Imaged Area 0.2.5 Die Architecture 0.2.6 Die Architecture ADC List of Schematics 1.0.0 Top Level Diagram 2.0.0 I/O Circuitry 3.1.0 Input Multiplexer 3.1.1 Decoder 3.1.2 Input Multiplexer A 3.2.0 Switched Caps 1 3.2.1 Channel Selection 3.3.0 Switched Caps 2 3.4.0 Switched Caps 3 3.5.0 Switched Caps 4 3.6.0 Switched Caps 5 3.7.0 Switched Caps 6 4.0.0 ADC Comparator 4.1.0 Comparator Circuit
EETI EXC7200 Touch Screen Microcontroller Page 2 5.0.0 D/A Converter 5.1.0 Resistor String 6.0.0 PLL 6.1.0 Phase Detector 6.2.0 PLL Analog 6.2.1 Clock Input 6.2.2 CP Bias 6.2.2.1 PMOS 6.2.3 Clock Buffer 6.2.4 Charge Pump 6.2.4.1 Amplifier 1 6.2.4.2 Amplifier 2 6.2.5 Low Pass Filter 6.2.6 V to I Converter 6.2.7 Current Starved VCO 6.2.7.1 Current Starved Inverter 6.2.8 Buffer 6.3.0 Differential to Single-Ended 6.4.0 Programmable Divider 6.5.0 Divided by Two 6.6.0 Clock Output 6.6.1 Reset Logic 6.6.2 Counter 1 6.6.3 Counter 2 6.6.4 CLK MUX 6.7.0 MUX 7.0.0 Bandgap Reference 7.1.0 Bandgap Core 7.1.1 Amplifier 7.1.2 PMOS
EETI EXC7200 Touch Screen Microcontroller Page 3 7.1.3 Resistor String 7.2.0 Voltage Regulator 7.2.1 Amplifier 7.2.2 Resistor String 1 7.2.3 Resistor String 2 8.0.0 VCO 1 8.1.0 VCO Bias 8.1.1 PMOS 1 8.1.2 PMOS 2 8.1.3 PMOS 3 8.1.4 Bias Voltage 8.1.5 Reference Current 1 8.1.6 Reference Current 2 8.2.0 Ring Oscillator 8.2.1 Delay Cell 8.2.2 Inverter 9.0.0 VCO 2 9.1.0 VCO Bias 9.1.1 NMOS 9.1.2 PMOS 9.2.0 Ring Oscillator 9.2.1 RS Latch 9.3.0 Buffer 10.0.0 Calibration Circuit 10.1.0 PMOS 10.2.0 NMOS 11.0.0 Current Path
EETI EXC7200 Touch Screen Microcontroller 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 Rd. Suite 500 Ottawa, Ontario K2H 5B7 Canada T: 1.613.829.0414 F: 1.613.829.0515 Web site: www.chipworks.com Email: info@chipworks.com Please send any feedback to feedback@chipworks.com