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Example 2— Stratix® 10 GX
Power Pin Name | Regulator Group | Voltage Level (V) | Supply Tolerance | Power Source | Regulator Sharing | Notes |
---|---|---|---|---|---|---|
VCC | 1 | 0.85 SmartVID |
±30 mV | Switcher 3 | Share | Source VCC and VCCP from the same regulator, sharing the same voltage plane. |
VCCP | ||||||
VCCERAM | 2 | 0.9 | ±30 mV | Switcher3 | Isolate | Connect the VCCERAM to a dedicated 0.9 V power supply. You may connect the VCCPLLDIG_SDM power to the VCCERAM power plane with proper isolation filtering. When implementing a filtered supply topology, you must consider the IR drop across the filter. |
VCCPLLDIG_SDM | Filter | |||||
VCCR_GXB[L,R] | 3 | 1.12 | ±20 mV | Switcher3 | Isolate | Connect the VCCR_GXB to a dedicated 1.12 V power supply. The VCCR_GXB and VCCT_GXB voltage supplies can vary depending on whether it is an L-Tile or H-Tile device as well as the channel configuration (non-bonded versus bonded channels) on each tile. For more information about the voltage requirement for your specific use case, refer to the Stratix® 10 Device Datasheet. |
VCCT_GXB[L,R] | 4 | 1.12 | ±20 mV | Switcher3 | Isolate | Connect the VCCT_GXB to a dedicated 1.12 V power supply. The VCCR_GXB and VCCT_GXB voltage supplies can vary depending on whether it is an L-Tile or H-Tile device as well as the channel configuration (non-bonded versus bonded channels) on each tile. For more information about the voltage requirement for your specific use case, refer to the Stratix® 10 Device Datasheet. |
VCCPT | 5 | 1.8 | ±5% 4 | Switcher3 | Share if 1.8 V | You may source VCCPT and VCCIO_SDM from the same regulator. You may connect the VCCIO, VCCIO3V, and VCCBAT to the same power plane if the those power rails are at the same voltage level. You may also connect the VCCH_GXB, VCCA_PLL, VCCPLL_SDM, and VCCADC to the same power plane with proper isolation filtering. Depending on the regulator capabilities, you have the option to share this supply with multiple Stratix® 10 devices. When implementing a filtered supply topology, you must consider the IR drop across the filter. |
VCCIO_SDM | 1.8 | |||||
VCCIO | Varies | |||||
VCCIO3V | Varies | |||||
VCCBAT | Varies | |||||
VCCH_GXB[L,R] | 1.8 | Filter | ||||
VCCA_PLL | 1.8 | |||||
VCCPLL_SDM | 1.8 | |||||
VCCADC | 1.8 | |||||
VCCFUSEWR_SDM | 6 | 2.4 | ±50 mV | Switcher3 | Isolate | Connect VCCFUSEWR_SDM to a dedicated 2.4 V power supply if the SDM fuses need to be written. Leave VCCFUSEWR_SDM unconnected or tie it to VCCPT 1.8 V power if the SDM fuses do not need to be written. Do not tie this pin to GND. |
Each board design requires its own power analysis to determine the required power regulators needed to satisfy the specific board design requirements. An example block diagram using the Stratix® 10 GX device is provided in the following figure.