The characteristic impedance of a PCB transmission line must match the electronic impedance of the driver and receiver to prevent signal distortion, and controlling impedance requires careful attention to factors such as trace width, material properties, and layer stack-up.
Why is it important to match the Driver and Receiver in PCB design? Read More »
The design of LVDS signals on PCB boards involves managing both differential and high-speed digital signals. Whether using PCB traces or cables for LVDS transmission, it’s crucial to prevent signal reflections at the media terminal and reduce electromagnetic interference to maintain signal integrity. Careful wiring considerations make designing high-speed differential circuit boards manageable. Key design considerations include layout on multilayer boards with a ground layer adjacent to LVDS signal layers for interference shielding, and precise impedance calculation and control to minimize signal degradation from reflected signals in transmission lines, typically maintaining differential impedance at 100 +/- 10Ω.
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