How do I interpret the Recommended Operating Conditions and Allowable Ripple recommendations of Altera devices? - How do I interpret the Recommended Operating Conditions and Allowable Ripple recommendations of Altera devices? Description The Recommended Operating Conditions for Devices and Allowable Ripple recommendations are separate parameters and cannot be combined. The Recommended Operating Conditions for Devices published in the device datasheets refers to the nominal DC requirement of the supply rails. The Allowable Ripple recommendations published in the Power Distribution Network (PDN) Tool refer to AC transient voltage fluctuations and are intended for PDN decoupling design. For device specific power supply recommended operating conditions, please refer to the relevant device datasheet. For device specific power supply voltage ripple recommendations, please refer to the "Introduction" tab of the device specific PDN Tool. Power Distribution Network Design Tool Related Articles Why are the device voltage supply minimum and maximum values different in the Power Delivery Network (PDN) Tool when compared to the Altera device Datasheet recommended operating conditions? How do I use the Altera PDN Tool to evaluate decoupling requirements for a MAX 10 device? Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Arria® II GX FPGA', 'Arria® V GT FPGA', 'Arria® V GX FPGA', 'Arria® V GZ FPGA', 'Arria® V ST FPGA', 'Arria® V SX FPGA', 'Cyclone® V E FPGA', 'Cyclone® V GT FPGA', 'Cyclone® V GX FPGA', 'Cyclone® V SE FPGA', 'Cyclone® V ST FPGA', 'Cyclone® V SX FPGA', 'Stratix® III FPGAs', 'Stratix® IV E FPGA', 'Stratix® IV GT FPGA', 'Stratix® IV GX FPGA', 'Stratix® V E FPGA', 'Stratix® V GS FPGA', 'Stratix® V GT FPGA', 'Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']