Allegro PCB Designer RAKs

Enabling CM Existing Design with Constraints Added in PCB Layout

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Enabling CM on Existing Schematic Design with Constraint Added in PCB Layout: RAK Learn more at Cadence Support Portal - https://support.cadence.com © 2019 Cadence Design Systems, Inc. All rights reserved w orldw ide. Page 12 Module 3: Defining Constraint Properties on Nets Constraint properties are the set of properties that are exclusively meant for CM. 1. Open Constraint Manager and go to the Properties tab. Define the No Rat properties as 'Off' for the AGND, V+, V-, and VBAT nets. 'No Rat' set to 'On' will disable the 'Ratnest" in the PCB layout view for the corresponding nets/traces. Figure 12: Net general properties

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