Issue link: https://resources.pcb.cadence.com/i/1532920
OrCAD X Constraint Management Guide Cadence is a pivotal leader in electronic design and computational expertise, using their Intelligent System Design Strategy to turn design concepts into reality. Cadence customers are the world's most creative and innovative companies, delivering extraordinary electronic products from chips to boards to systems in the most dynamic market applications. www.cadence.com © 2025 Cadence Design Systems, Inc. All rights reserved worldwide. Cadence, the Cadence logo, and the other Cadence marks found at www.cadence.com/go/trademarks are trademarks or registered trademarks of Cadence Design Systems, Inc. All other trademarks are the property of their respective owners. 02/25 DB/CPG/DG-ORCDX-CNSTMG-PT3/PDF RF (Radio Frequency) Circuit Constraints f Define impedance control for RF transmission lines ɢ You may use the standard Impedance control instructions in the Impedance Control section f Set up rules for RF shielding and isolation ɢ Not directly supported in OrCAD X Presto PCB Editor f Establish guidelines for component placement to minimize interference ɢ Please see the component spacing sections in this document f Configure constraints for antenna design and placement ɢ Outside the scope of this document Conclusion of Part 3 - Advanced Constraints In Part 3 of the OrCAD X Constraint Manager Guide, we delved into advanced constraints critical for managing complex PCB designs. By mastering high-speed constraints and electrical design rules such as net scheduling, impedance control, and differential pairs routing, designers can ensure optimal performance and reliability in cutting-edge technologies. These constraints are essential for high-speed interfaces like USB, DDR, PCIe, and RF circuits, where precise control over signal integrity and timing is paramount. As we transition into Part 4, Constraints Optimization, we will explore techniques to enhance design efficiency and flexibility. This section will guide power users through the effective use of EC Sets, schematic-to-PCB constraints, and modular approaches, offering tools to refine design processes and achieve superior results. Prepare to elevate your constraint management skills to a new level of sophistication and efficiency.