diff --git a/4410-4412.tex b/4410-4412.tex
index 6187267..063fe4f 100644
--- a/4410-4412.tex
+++ b/4410-4412.tex
@@ -285,7 +285,7 @@ It provides 4 channels of DDS (direct digital synthesis) at 1GS/s. Output freque
 Specifications of parameters are based on the datasheets of the DDS IC
 (AD9910\footnote{\label{ad9910}\url{https://www.analog.com/media/en/technical-documentation/data-sheets/AD9910.pdf}},
 AD9912\footnote{\label{ad9912}\url{https://www.analog.com/media/en/technical-documentation/data-sheets/AD9912.pdf}}),
-clock buffer IC (Si53312\footnote{\label{clock_buffer}\url{https://www.skyworksinc.com/-/media/Skyworks/SL/documents/public/data-sheets/Si53312.pdf}}),
+clock buffer IC (Si53312\footnote{\label{clock_buffer}\url{https://www.skyworksinc.com/-/media/SkyWorks/SL/documents/public/data-sheets/Si5331x_datasheet.pdf}}),
 digital attenuator IC (HMC542BLP4E\footnote{\label{attenuator}\url{https://www.analog.com/media/en/technical-documentation/data-sheets/hmc542b.pdf}}), Sinara project information\footnote{\label{urukul_wiki}\url{https://github.com/sinara-hw/Urukul/wiki\#details-specification-and-typical-performance-data}}
 and corresponding test results\footnote{\label{sinara354}\url{https://github.com/sinara-hw/sinara/issues/354\#issuecomment-352859041}}.
 \begin{table}[h]