The MC10/100EP90 is a TRIPLE ECL TO LVPECL/PECL translator. The device receives differential LVECL or ECL signals and translates them to differential LVPECL or PECL output signals. A VBB output is provided for interfacing with Single-Ended LVECL or ECL signals at the input. If a Single-Ended input is to be used the VBB output should be connected to the D input. The active signal would then drive the D input. When used the VBB output should be bypassed to ground by a 0.01 mF capacitor. The VBB output is designed to act as the switching reference for the EP90 under Single-Ended input switching conditions, as a result this pin can only source/sink up to 0.5 mA of current.