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SN65LVDS31: Input pull low resistor

Part Number: SN65LVDS31
Other Parts Discussed in Thread: SN65LVDS9638

Hi Team,

The customer is asking that why we add a 51.1 ohm pull low resistor in the input pin of SN65LVDS31? This is found in LVDS EVM user's guide, please reference the link as below.

Low Voltage Differential Signaling (LVDS) EVM User's Guide

Due to my customer is using SN65LVDS9638 for the SPI application, should they also add the pull low resistor on the signal of LCD_SPI_CLK and LCD_SPI_MOSI? Thank you.

Best regards,