LVDS interface design

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LVDS interface design scheme

LVDS (Low-Voltage Differential Signaling) is a low-power and high-speed differential signal transmission technology specially designed for high-resolution display and industrial scenarios. Its design is as follows: The common-mode filter inductor eliminates common-mode interference on differential signals, improving signal quality. The common-mode impedance selection range is 60Ω@100MHz to 120Ω@100MHz, with a typical value of 90Ω@100MHz. Magnetic beads are used to filter out interference on the power supply. The impedance selection range is 100Ω@100MHz to 1000Ω@100MHz, with a typical value of 120Ω@100MHz. When selecting magnetic beads, the current-carrying capacity should meet the requirements of the circuit current. ESD can quickly discharge static interference, preventing the large amount of interference energy generated during hot plugging from impacting the circuit and causing abnormal operation of the internal circuit.

LVDS interface design scheme

CMF2012WD900MQT

ESD0524UA

CVB1608E121T