SK-AX1-AX2-KITTOP Actel, SK-AX1-AX2-KITTOP Datasheet - Page 15

• Manufacturer Part Number: SK-AX1-AX2-KITTOP
• Description: Microcontroller Modules & Accessories Adapter Sockets
• Manufacturer: Actel

Specifications of SK-AX1-AX2-KITTOP

• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High Frequency Signals
Figure 24 • Pin Dislodged from Interposer
Possible solutions for interposers with dislodged pins are listed below:
For five or fewer dislodged pins, fix them by putting the dislodged pins back into the interposer using
tweezers.
Otherwise a damaged interposer should be replaced with a new interposer.
Lastly, when replacing a damaged interposer, note that the specific interposer for the prototyping adapter
socket must be used. The interposer for the CQ352 to FG484 socket is different from the interposer used
with the CQ352 to FG896 socket and also different from the interposer used with the CQ256 to FG896
socket.
High Frequency Signals
The adapter socket was built for functional prototyping only. It was not the intended to support at-speed
testing, especially for high frequency signals such as LVDS. There is no specific series or parallel
termination on the adapter board itself. To operate high frequency signals with the adapter socket, the
series and parallel termination should be placed close to the I/O pins. The only possible location is on the
main board, which is too distant from I/O pins and will also add significantly to the parasitic. If you need to
implement LVDS or higher frequency signals, you must build a standalone board.
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