Digital Processing And Digital Control Group Operation - Keysight N5227A Service Manual

PNA Series Microwave Network Analyzers
N5227A

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 Interface 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 Hard Disk Drive
Service Guide N5227-90001
Digital Processing and Digital Control Group Operation
Figure 5-9 on page
Theory of Operation
5-32.
5-31