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→Low-Noise Power Supplies
=== Low-Noise Power Supplies ===
Optional low-noise linear power supplies are available, which fit into the connectors around the switch-mode power supply. They have less power handling capabilities than the on-board switch-mode supplies, but have reduced noise that ends up injected into the PCB (and thus on the power traces).
These power supplies are only used for VCC-IO and VCC-AUX. Like the on-board supplies they will be disabled when the power to the FPGA is switched off using either the API interface or the target power switch.
If you wish to have the lowest-noise power source, you must mount the VCC-IO and VCC-AUX low-noise supplies, and also use an external supply for the VCC-INT supply.
== Shunt Selection ==