UG-130 Evaluation Board User Guide
Rev. B | Page 4 of 8
SMA INPUT/OUTPUT CONNECTORS
The inputs and outputs have edge-mounted SMA connectors
for straightforward connection to coaxial cables. The recom-
mended connector type is Johnson Components™ Part Number
142-0701-801, or equivalent.
OTHER COMPONENTS
The components described in this user guide pertain mostly to
traditional amplifier topologies. Footprints are provided for a
number of other components on the board to allow the user to
be more creative than the traditional designs. A component
labeled as a capacitor need not be a capacitor provided that it
fits the user’s application circuit and the footprint on the board.
In application circuits where footprints for desired components
are not available on the board, the user is encouraged to find ways
to include them. For example, if an additional shunt element is
required, the user can scrape some solder mask away from the
ground plane and trace (if necessary) to make a place for the
additional part. Furthermore, 1206 elements can be stacked on
top of each other to implement a parallel circuit. An example of
this includes stacking capacitors across R17 and R18 to realize a
zero in the closed-loop transfer function. This is one way to
insert preemphasis in a line-driver application.
