Digital Processing And Digital Control Group Operation - Keysight N5224A Service Manual

Theory of Operation

Digital Processing and Digital Control Group Operation

Digital Processing and Digital Control Group Operation
The digital processor and control group provides digital control for the entire analyzer. It provides:
• front panel operation,
• output to the display,
• math processing functions, and
• communications between the analyzer and an external controller or peripherals.
A block diagram of the digital control functional group is shown in
The digital control functional group consists of two subgroups:
• Front Panel Subgroup
— A1 Front Panel Display Board
— A2 USB Board
— A3 Display Assembly
— Keypad Assembly
— A18 System Motherboard
• Data Acquisition and Processing Subgroup
— A16 SPAM Board (Digital Description)
— A21 CPU Board
— A55 Solid State Drive (SSD)
5-26
PNA Series Microwave Network Analyzers
N5224A and N5225A
Figure 5-8 on page 5-27.
Service Guide N5225-90001