Fanout Design

Two versions of the fan-out board have been used with the HAWAII-2 detector. Figure 2 (left) shows the 32-channel version while Fig. 2 (right) shows the architecture used to operate the Detector with the 4-channel configuration. Both versions have the same physical dimensions, match with the same mechanical support, and share the same design philosophy to ensure the correct operating temperature and stability during operation.

The electronic design, although basically identical, has suffered some adjustments based on the results of the initial tests performed with the 4-channel architecture. The circuit layout has also been adapted to minimise the total area and to reduce the number of active components used per channel.

Figure 2. Fan-out board configurations, (left) 32-channel and (right) 4-channel.

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