|
|
|
|
|
|
|
|
|
|
|
|
The following changes replace the original contents of DCR578:
Para 1.4.2 (Variant Table):
Add new Variant 22 and note 1 as follows:
Variant Number: 22 (Note 1)
Nominal attenuation (dB): 0
Att Tolerance (dB)(at DC to 17.5Ghz & 17.5 to 31.5Ghz): +/-0.8 & +/-0.5
VSWR: <=1.5
Max Weight (g): 7
Note 1: Variant 22 is a DC shunt attenuator that includes a high value series resistance element.
Para 1.5 (Maximum Ratings table):
For Peak Power, amend Max Rating to be "Note 2" (was 50W)
For RF Power, Peak Power add to the remarks:
Tamb <=+25C
For DC Power replace Tamb =+25C by Tamb <=+25C
For Coupling Nut Torque change remark to be "Note 3" (was Note 2)
Amend note 1 to read:
1. RF Power shall be derated against operating temperature as follows:
For Tamb >+25C, derate linearly to 125mW at +125C
Renumber note 2 to be note 3 and change to read as follows:
3. Coupling Proof Torque: 170N.cm. During engagement of the component with its mating counterpart the body of the component shall be restrained by means of the body flats whilst torque is aplied to the coupling nuts (see Physical dimensions)."
Add new note 2:
2. For Variants 01 to 21 the maximum rated Peak Power shall be 50W.
For Variant 22 the maximum rated Peak Power shall be 25W.
Para 1.6 Physical Dimensions
Add a "Notes" column to the table and new note 1 applicable to symbol D as follows:
1. The body flats shall be used to restrain the body during engagement whilst torque is applied to the coupling nuts.
Para.2.6.1 (Room Temp Electrical Measurements table)
Add new characteristic as follows:
Characteristics: Series Resistance
Symbols: Rs
Test Methods & Conditions: f=DC, Note 3, Variant 22 only
Limits: 3 min, 10 max
Units: dB
Add new note 3 as follows:
3. Guaranteed but not tested.
|
|
|
Login
