Agilent Technologies U2121A-101 RF Operating Manual page 38

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To set digital output.
1 To enable digital output control, set Ch14 to ON (1).
2 For channel 1 to channel 5, only activated one bit at a time. Do
not activate both bits together because this will damage your RF
switches.
3 Some RF switches will need pulse current control instead of
continuous current control. Please refer to the respective RF
switches' datasheets for more information. The wrong control
method will lead to RF switch damage.
• Prolonged exposure to a continuous supplied current will cause overheating in
your RF switch. Please ensure your devices temperatures are constantly
monitored when supplying continuous current.
• Refer to the Agilent U2121A-Based RF Switch Driver COM Object Help File for
more information.
U2121A-101 Operating Guide