From 7ea24e32e97ef2ee18b2f4679111d82076ae3129 Mon Sep 17 00:00:00 2001
From: occheung <dc@m-labs.hk>
Date: Mon, 31 Jan 2022 16:27:31 +0800
Subject: [PATCH] su-servo: mention P1dB impact

---
 4410-4412.tex | 4 +++-
 5108.tex      | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/4410-4412.tex b/4410-4412.tex
index 4fe2b4a..bab4f46 100644
--- a/4410-4412.tex
+++ b/4410-4412.tex
@@ -916,7 +916,9 @@ The DDS channel is terminated with 50\textOmega.
 \end{tikzpicture}
 \end{center}
 
-Note: DDS signal should be attenuated. High output power may affect the linearity.
+DDS signal should be attenuated.
+High output power affects the linearity due to the 1 dB compression point of the amplifier at 13 dBm output power.
+15 dB attenuation at the digital attenuator was applied in this example.
 
 \section{Ordering Information}
 To order, please visit \url{https://m-labs.hk} and select the 4410 Urukul in the ARTIQ Sinara crate configuration tool.
diff --git a/5108.tex b/5108.tex
index 3ca5cea..f805063 100644
--- a/5108.tex
+++ b/5108.tex
@@ -678,7 +678,9 @@ The DDS channel is terminated with 50\textOmega.
 \end{tikzpicture}
 \end{center}
 
-Note: DDS signal should be attenuated. High output power may affect the linearity.
+DDS signal should be attenuated.
+High output power affects the linearity due to the 1 dB compression point of the amplifier at 13 dBm output power.
+15 dB attenuation at the digital attenuator was applied in this example.
 
 \section{Ordering Information}
 To order, please visit \url{https://m-labs.hk} and select the 5108 Sampler in the ARTIQ Sinara crate configuration tool. The card may also be ordered separately by writing to \url{mailto:sales@m-labs.hk}.