Measurement Setup Parameters (InfiniiVision Series Oscilloscopes)

This topic provides measurement and parameter setup information that are unique to the 89600 VSA software and Keysight InfiniiVision Series oscilloscopes measurement hardware configuration. This information will help you to properly setup the VSA to make measurements using the InfiniiVision Series oscilloscopes.

Measurement Setup Parameters:

	Alignment/Calibration	Overlap
	Channels	Preset
	Connection	Range
	Coupling	Recording
	Center Frequency Limits	Setup Save/Recall
	Frequency Counter	Span
	Front Panel Scope Control	Trigger Holdoff
	Hardware	Triggering
	Custom Channel Configurations

 

Alignment/Calibration: Calibration is not supported.

Channels: 1 channel, 2 channels, 3 channels, 4 channels, I+jQ (C1+jC2), or Dual I+jQ (C1+jC2, C3+jC4) are available depending on the number of channels available on the scope.

Custom Channel Configurations:  The Custom Channel Configurations dialog (Input > Channels > Custom...) is used to create custom channel mapping configurations, that is, you can reconfigure the hardware input channel to VSA measurement channel connections. The VSA only allows valid channel configuration mappings; "invalid" channel configuration mappings are disallowed (indicated by a red "X") and the "OK" button is disabled "greyed out".

Connection: Selectable 50 Ohm Unbalanced (single ended) or 1 M Ohm Unbalanced. Only 1 M Ohm Unbalanced is available on the 601X scope models.

Coupling: AC and DC coupling are available. However, AC coupling and the 50 Ohm input connection can not be selected at the same time. (They are mutually exclusive.)

Center Frequency Limits: Limits depend on which model scope you are using.

Frequency band: 0 to the scope's maximum BW. See the list of supported Infiniivision Oscilloscopes for maximum bandwidths.

Frequency Counter: Not available.

Front Panel Scope Control: The Disconnect feature can be used to pause the VSA and release its control of the InfiniiVision Series scope. Then the scope can be used independent from the VSA. When returning to the VSA and starting or resuming a measurement, the VSA will restores the scope state that was set before disconnected.

Hardware: Set up an Analyzer Configuration with the InfiniiVision Series scope as the Logical Instrument.

Overlap: The InfiniiVision Series scopes do not support overlap processing. However, overlap processing is available during recording playback.

Preset: The default parameter settings that are different from the Preset Setup settings are listed below. (Any parameters not listed here are set to the same value as Preset Setup.)

Range:  30 dBm deciBels referenced to a milliWatt: dB relative to 1 milliwatt dissipated in the nominal input impedance of the analyzer
Coupling:  DC
Connection:  50 Ohm Unbalanced (single ended)
Frequency: varies with scope model. See the list of supported Infiniivision Oscilloscopes for maximum frequency.

ResBW:   3 MHz Megahertz: A unit of frequency equal to one million hertz or cycles per second.

Main Time Length:  1.2734375 usec

Max Overlap:  90%

Gate on/off:   Off

Gate Length    1.2734375 usec

Range: The menu path for selecting range is Input > Analog in the VSA. The input range maximum and minimum limits are listed below by scope model (for a reference impedance of 50 Ohms). The step size between ranges is approximately 2 dB in most cases, although there are a few exceptions due to the quantization of ranges on the InfiniiVision Series scope.

Recording: the VSA application enables time data recording from the InfiniiVision Series scope to the PC's disk drive. The length of time waveform recording is limited by the memory available on the InfiniiVision Series scope.

Setup Save/Recall: The InfiniiVision Series scope state is not saved when the VSA application is closed. When a setup is recalled into the VSA, the InfiniiVision Series state is set appropriately based on the recalled VSA setup.

Span: The maximum span is dependent upon the bandwidth of the particular InfiniiVision Series scope model. The minimum span is dependent upon the sample rate set on the InfiniiVision Series scope. Span resolution is independent of the scope and unchanged from 89640 operation.

Trigger Holdoff: The trigger holdoff specifies the length of time before the next trigger can occur.

Triggering: The following trigger parameters are available:

• Style: Free Run, Channel, External, and External TTL

• Slope: available for Channel, External, and External TTL

• Level: available for Channel and External

• Holdoff Style: Conventional available for Channel

• Holdoff: available for Channel, 60 ns to 10 sec

• Delay: available for Channel, External, and External TTL

Trigger Style	Level	Default
Channel	-1.5 x Range to +1.5 x Range	0V
External	-8V to +8V (6xx2 scopes)	2V
External	-5V to +5V (6xx4 scopes)	2V