Reference Voltage Generation for Single-Ended Memory Interfaces

While most aspects of single-ended signaling interfaces do not change from one generation to the next, certain topological changes may enhance the robustness of single-ended schemes at higher datarates. Reference voltage (V_REF) generation is critical to maintaining sufficient signaling margins and thus demands attention. This paper discusses V_REF generation and introduces a V_REF architecture which provides static level tuning while tracking dynamic power supply variation.