3
Theory of Operation
44
Keysight N1911A/1912A Service Guide
DAP Assembly
Purpose
– Provides data acquisition and processing for the peak measurement path of
a channel
Inputs
– Power supplies [from PSU, via main board]
– Unprocessed peak path measurement samples [from main board]
– Control, address, and data lines [from PPMC]
Outputs
– Processed peak path measurement data [to PPMC, via main board]
– Control and data lines [to PPMC, via main board]
