diff --git a/artiq/coredevice/ad9910.py b/artiq/coredevice/ad9910.py
index d1d86403e..baa77b50d 100644
--- a/artiq/coredevice/ad9910.py
+++ b/artiq/coredevice/ad9910.py
@@ -529,14 +529,26 @@ class AD9910:
 
     @kernel
     def set_ftw(self, ftw):
+        """Set the value stored to the AD9910's frequency tuning word (FTW) register.
+
+        :param ftw: Frequency tuning word to be stored, range: 0 to 0xffffffff.
+        """
         self.write32(_AD9910_REG_FTW, ftw)
 
     @kernel
     def set_asf(self, asf):
+        """Set the value stored to the AD9910's amplitude scale factor (ASF) register.
+
+        :param asf: Amplitude scale factor to be stored, range: 0 to 0x3ffe.
+        """
         self.write32(_AD9910_REG_ASF, asf<<2)
 
     @kernel
     def set_pow(self, pow_):
+        """Set the value stored to the AD9910's phase offset word (POW) register.
+
+        :param pow_: Phase offset word to be stored, range: 0 to 0xffff.
+        """
         self.write32(_AD9910_REG_POW, pow_)
 
     @portable(flags={"fast-math"})
@@ -633,18 +645,26 @@ class AD9910:
 
     @kernel
     def set_frequency(self, frequency):
-        """Set the value stored to the AD9910's FTW register
+        """Set the value stored to the AD9910's frequency tuning word (FTW) register.
 
-        :param frequency: frequency to be stored, in Hz
+        :param frequency: frequency to be stored, in Hz.
         """
         return self.set_ftw(self.frequency_to_ftw(frequency))
 
     @kernel
     def set_amplitude(self, amplitude):
+        """Set the value stored to the AD9910's amplitude scale factor (ASF) register.
+
+        :param amplitude: amplitude to be stored, in units of full scale.
+        """
         return self.set_asf(self.amplitude_to_asf(amplitude))
 
     @kernel
     def set_phase(self, turns):
+        """Set the value stored to the AD9910's phase offset word (POW) register.
+
+        :param turns: phase offset to be stored, in turns.
+        """
         return self.set_pow(self.turns_to_pow(turns))
 
     @kernel