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
— A14 system motherboard
•
Data Acquisition and Processing Subgroup
—
A12 SPAM Board (Digital Description)
—
A17 CPU Board
—
A51 Solid State Drive
5-26
PNA Series Microwave Network Analyzers
Figure 5-8 on page
5-27.
Service Guide N5222-90001
N5221A/22A