From 0b3e166d4cebbbb8fa43dc852463368689d0db49 Mon Sep 17 00:00:00 2001
From: PX4BuildBot <bot@px4.io>
Date: Fri, 25 Sep 2026 09:53:14 +0000
Subject: [PATCH] docs: auto-sync metadata [skip ci]

  Co-Authored-By: PX4 BuildBot <bot@px4.io>
---
 .../en/advanced_config/parameter_reference.md | 40 +++++--------------
 1 file changed, 9 insertions(+), 31 deletions(-)

diff --git a/docs/en/advanced_config/parameter_reference.md b/docs/en/advanced_config/parameter_reference.md
index 4e242297f8a..f13999a3912 100644
--- a/docs/en/advanced_config/parameter_reference.md
+++ b/docs/en/advanced_config/parameter_reference.md
@@ -394,7 +394,7 @@ Reboot | minValue | maxValue | increment | default | unit | Read-Only
 
 ## Actuator Outputs
 
-<div class="param-group" style="--param-count: 701">
+<div class="param-group" style="--param-count: 700">
 
 <div class="param">
 
@@ -3912,21 +3912,20 @@ Reboot | minValue | maxValue | increment | default | unit | Read-Only
 
 <Badge type="warning" text="This parameter is only present on some boards." />
 
-PWM cycle frequency.
+PWM frequency and update rate.
 
-Controls the PWM frequency at timing perspective.
-This is independent from PWM update frequency, as PCA9685 is capable to output
-without being continuously commanded by FC.
-Higher frequency leads to more accurate pulse width, but some ESCs and servos may not support it.
-This parameter should be set to the same value as PWM update rate in most case.
-This parameter MUST NOT exceed upper limit of 400.0, if any outputs as generic 1000~2000us
-pulse width is desired. Frequency higher than 400 only makes sense in duty-cycle mode.
+Sets the PWM frequency generated by the PCA9685, and the rate at which the Flight
+Controller pushes new output values to it.
+A higher rate gives a more accurate pulse width, but consumes more I2C bandwidth,
+which may lead to worse output latency or completely block the I2C bus.
+Values above 400 are not supported: a generic 1000~2000us pulse width cannot be
+produced above that, and the I2C bus cannot sustain the resulting update rate.
 
 
 
 Reboot | minValue | maxValue | increment | default | unit | Read-Only
 --- | --- | --- | --- | --- | --- | ---
-&nbsp; | 23.8 | 1525.87 |  | 50.0 |  | &nbsp;
+&nbsp; | 50.0 | 400.0 |  | 50.0 | Hz | &nbsp;
 
 </div>
 
@@ -3971,27 +3970,6 @@ Reboot | minValue | maxValue | increment | default | unit | Read-Only
 
 <div class="param">
 
-### PCA9685_SCHD_HZ (`FLOAT`) {#PCA9685_SCHD_HZ}
-
-<Badge type="warning" text="This parameter is only present on some boards." />
-
-PWM update rate.
-
-Controls the update rate of PWM output.
-Flight Controller will inform those numbers of update events in a second, to PCA9685.
-Higher update rate will consume more I2C bandwidth, which may even lead to worse
-output latency, or completely block I2C bus.
-
-
-
-Reboot | minValue | maxValue | increment | default | unit | Read-Only
---- | --- | --- | --- | --- | --- | ---
-&nbsp; | 50.0 | 400.0 |  | 50.0 |  | &nbsp;
-
-</div>
-
-<div class="param">
-
 ### PWM_AUX_CENT1 (`INT32`) {#PWM_AUX_CENT1}
 
 <Badge type="warning" text="This parameter is only present on some boards." />