Specifications

Chapter 7: Theory of Operation
Acquisition Assembly
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Acquisition Assembly
The acquisition assembly consists of two identical acquisition boards. These two boards
connect to the backplane board as shown in Figure 7- 2.
Figure 7-2 Acquisition and backplane assemblies
The upper acquisition board circuitry samples, digitizes, and stores the signals for
channels 3 and 4; the lower acquisition board does the same for channels 1 and 2.
Both acquisition boards contain the Oak module (a full- custom ball grid array multi-
chip module), the Onboard ADC, clock distribution, data management ASICs, external
acquisition memory, ADCs, communication and programming FPGAs, and supporting
power supply circuitry. Figure 7- 3 shows a block diagram of the acquisition boards
including the Oak module.