How To View And Change All Frequency Settings - HP 81200 User Manual

How to Set Up a Port or Channel for Generated Signals
HP 81200 Data Generator/Analyzer Platform User Guide, Revision 2.1
TTL into 50 τ , for example, would yield a voltage swing of 5 V which is
unacceptable. But if you change the second low level to let us say 2 V (for
generating spikes of 0.5 V), this is well in the range of the E4838A frontend.
A voltage overshot could hence be generated as illustrated below.
1st Channel
2nd Channel
Added signal
Figure 48 Overshot Generation
To generate real-world signals, you will also have to take the rise/fall times
into account.
N O TE
The Analog Channel Add setting takes only effect after the two channels
have been added in analog mode by means of the Channel Configuration
Editor.
Both channels can have different timing parameters, such as frequency,
pulse width and delay. High level and expected load are determined by the
channel that holds the connector.
How to View and Change All Frequency
Settings
Different ports can have different frequency multiplier settings. For a data
port, the setting applies to all the terminals belonging to the port. This is in
contrast to a pulse port where each terminal can have an individual setting.
Overview and quick access to all the frequency settings are provided by the
Frequency Overview window.
How to Open the Frequency Overview Window
To access the Frequency Overview window:
1 Open the Go menu.
2 Click Frequency Overview.
Setting Up Ports and Channels
High level 2.5 V
Low level 0 V
High level 2.5 V
Low level 2 V
High level 2.5 V
2.0 V
–0.5 V
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