JAJSN78A October 2021 – January 2022 LMK1D2106 , LMK1D2108
PRODUCTION DATA
The LMK1D210x LVDS drivers use CMOS transistors to control the output current. Therefore, proper biasing and termination are required to ensure correct operation of the device and to maximize signal integrity.
The proper LVDS termination for signal integrity over two 50-Ω lines is 100 Ω between the outputs on the receiver end. Either DC-coupled termination or AC-coupled termination can be used for LVDS outputs. TI recommends placing a termination resistor close to the receiver. If the receiver is internally biased to a voltage different than the output common-mode voltage of the LMK1D210x, AC coupling must be used. If the LVDS receiver has internal 100-Ω termination, external termination must be omitted.