Volterra. VT1115MF Pulse Width Modulation (PWM) Controller. Partial Circuit Analysis

Transcription

1 Volterra VT1115MF Pulse Width Modulation (PWM) Controller 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 Volterra VT1115MF PWM Controller Table of Contents Overview Schematics Cell Library Signal Cross-Reference List Report Evaluation

3 Volterra VT1115MF PWM Controller Overview List of Figures... Page 1 List of Schematics... Page 2 Introduction... Page 7 Brief Design Overview... Page 7 Component Description... Page 11 Device Summary Sheet... Page 12

4 Volterra VT1115MF PWM Controller Page 1 List of Figures To view, please click on the appropriate bookmark in the panel on the left Package Markings Analog Test Switch Package X-Ray Analog Test Switch Die Markings Analog Test Switch Die Photograph Analog Test Switch Annotated Die Photograph Analog Test Switch Current Sink Active Load Current Sink Current Sink Current Sink Current Source Current Source Current Source Current Source Current Source Current Source Current Source Current Source Active Load Analog Mux CMOS Transfer Gate CMOS Transfer Gate Input Selector Switch Two-Input XOR XNOR Gate Programmable Current Source Programmable Current Source Programmable Current Source Enable Buffers and Bias Generator Enable Buffers and Bias Generator

5 Volterra VT1115MF PWM Controller Page 2 List of Schematics To view, please click on the appropriate bookmark in the panel on the left Top Level Schematic I/O Ring Top Level Pad Frame Bond Pad with Primary ESD Protection Dual Input Buffer Slicer with Hysteresis Comparator Threshold Generator Output Pre-Driver Input Buffer Pad I/O Buffer Pad Output Pre-Driver Eight Channel Comparator Comparator Comparator Comparator Comparator Comparator Pad Output Pre-Driver Analog Functions Top Level Reference and Bias Generator Input Gating Reference and Bias Bandgap Reference Programmable Resistive Divider Programmable Resistive Divider Section Programmable Resistive Divider Section

6 Volterra VT1115MF PWM Controller Page Voltage to Current Converter Differential Amplifier Current Sink Bias Generator Current Source and Sink Bias Generator Current DAC Differential Amplifier Programmable Current Mirror DAC Output Switches DAC Input Gating DAC Input Mux Resistor Comparator Input Selector Switches Comparator Oscillators Voltage to Current Converter Digitally Controlled Oscillator Current Level Detector Internally Referenced Oscillator Oscillator Programmable Oscillator Bias Reference Voltage Divider Opamp Opamp Amplifier Reset Switches Reference Voltage Divider VREF Decouling Capacitors Amplifier with Programmable Offset Summing Opamp Buffer Amplifier Fully Differential Variable Gain Amplifier with Programmable Offset Fully Differential Summing Opamp

7 Volterra VT1115MF PWM Controller Page Common Mode Feedback Variable Resistive Divider Pair Fully Differential Amplifier with Programmable Offset Fully Differential Summing Opamp Common Mode Feedback Comparator Opamp Comparator Amplifier Opamp Dual Channel ADC ADC Switched Capacitor Bank ADC Input Switch ADC Comparator ADC Digital Processing ADC Phase Counter ADC Phase Generator ADC Phase Latches ADC Phase Inverters ADC Control Logic ADC Latch Reset Logic ADC1 Serial to Parallel Converter ADC2 Serial to Parallel Converter ADC1 Latches ADC2 Latches ADC1 Output Gating ADC2 Output Gating ADC1 Switched Cap Control ADC2 Switched Cap Control Window Comparator Comparator Analog Test Switches

8 Volterra VT1115MF PWM Controller Page Test Switch Enable Logic Test Switch Enable Logic Digital Power Supply Decoupling Analog Power Supply Decoupling Digital Glue Top Level Enable Buffers Pad Input Buffer Enable Buffer Tree Nonvolatile Register File Timer Nonvolatile Register Bank Nonvolatile Register Cell Bias Generator Nonvolatile Register Bank Nonvolatile Register Bank Digital Interface Pad Input Buffer Pad I/O Buffer Phase Detectors Phase Detector Pulse Generator Bias Generator Miscellaneous Logic Transition Detector Bit Comparator ROM Based Controller Input Selector Inverters Decoder Digital Comparator ROM

9 Volterra VT1115MF PWM Controller Page Binary Decoder Binary Decoder ROM Output Registers ROM Output Register ROM Output Register (Bypassable) Decoder Constants Multiplexer Six to One Multiplexer Multiplexer Adder Register Clock Output Mux Pad Output Buffer Power On Reset Delay Pulse Generator Rising Edge Delay Decoder

10 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: F: Web site: info@chipworks.com Please send any feedback to feedback@chipworks.com