FPGAs may wreak havoc on signals in a system (or other FPGA signals) with too many high-speed SSOs, which cause noise known as simultaneous switching noise (SSN).

• FPGA可能会由于太多的高速SSO而对系统中的信号(或其它FPGA信号)带来严重破坏，因为这会导致称为同时切换噪声(SSN)的噪声。