Transmission line simulation in LTSpice? How to model a CMOS input?
\$Z_0 = \sqrt{\frac{L}{C}} = \sqrt{\frac{1874,79 \text{nH}}{56,98 \text{pF}}} = 181,3907313029 \Omega\$

add resistor  180&Omega;  (Rin || 180&Omega;).