lvds_ch4Chapter 4 Designing with LVDS 4.1 Introduction LVDS has low-swing, differential, ~3.5 mA current-mode outputs that can help reduce noise/EMI significantly, but these outputs switch (rise and fall) in less than a nanosecond, which means that almost every interconnect will act as a transmission line. Therefore, knowledge of ultra-high-speed board design and differential signal theory is required. Designing high-speed differential boards is not difficult or expensive. So familiarize yourself with the techniques outlined in Chapter 3 before you begin your design. 4.1.1 High-speed layout See Chapter 3. 4.1.2 Unused pins LVDS inputs - Leave unused LVDS receiver inputs open (floating) for LVDS receivers unless directed differently by the specific component’s datasheet. Their internal failsafe f……