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Research
Design and Debug
Characterization
Automated Testing
The instrument is
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This is the front panel reference manual for the DSA 601A and DSA 602A Digitizing Signal Analyzers. If you are a new user, first read the DSA 601A and DSA 602A Tutorial to become familiar with the DSA. Use the User Reference to answer specific questions about operation of the DSA.
The first section, At a Glance, presents quick get-acquainted information and a map of the various menus. Each menu is accompanied by pointers into the detailed second section, In Detail.
This document provides comprehensive information to aid you in operating your DSA via the General Purpose Interface Bus (GPIB) or the RS-232-C interface.
This document is divided into two sections, a Task Reference and a Commands Reference. The Task Reference section lists common task you can perform using the DSA 601A and DSA 602A Digitizing Signal Analyzers, and the steps to take to execute each task. Tasks are sorted into groups. The Command Reference section has the same function except it gives the steps to take to execute each function.
Read this manual to familiarize yourself with the DSA 601 and the DSA 602 Digitizing Signal Analyzers and to learn about their capabilities. THere are examples in this manual that will help you learn how to use the DSA. There are additional manuals that provide reference information and information about programming the DSA.
The first section of this manual presents operator information about physically installing the DSA, installing plug-in units, and connecting cables to the DSA. Examine this information carefully; it contains important safety information.
The remainder of this manual presents a series of examples that will help you quickly learn the capabilities of the DSA.
DC to 1 GHz bandwidth (system bandwidth also depends on mainframe)
Dual channel
Calibrated sensitivities from 10mV to 1V/div
50 ohm input impedance
High-resolution, calibrated DC offset (0.25 div/increment, coarse; 0.025 div/increment, fine)
Fast overdrive recovery
Coupling: AC, DC, or Off
Display Polarity: normal or inverted
A Service Reference Manual is available for this plug-in unit.
The 11A34 amplifier offers switchable 1 Mohm/50 ohm input impedance, fast overdrive recovery and wide offset ranges. The 11A34 is a four-channel unit.
Two built-in four-pole bandwidth-limit filters (100 MHz and 20 MHz) may be activated to reduce unwanted high-frequency noise at 24 dB/octave for each channel.
Both coarse and fine detection-factor steps are fully calibrated. At 1 mV/div, the calibrated DC offset can be set with a resolution of 25 µV and a range of ±1 V (equivalent to 16 bits), giving an effective screen height of 2000 divisions and permitting absolute DC measurement accuracies to ± 0.4%.
Number of Channels -
Calibrated Deflection Factors -
Bandwidth -
Volts/div |
Bandwidth (MHz) |
| >10 mV | 300 |
| 5 to 9.95 mV | 250 |
| 2 to 4.98 mV | 200 |
| 1 to 1.99 mV | 150 |
Accuracy -
Delta Volts DC accuracy: ±(1.0% + 0.02div).
DC Balance, 1 to 99.5 mV/div: ±(1.0 mV + 0.10 div).
Offset Accuracy, 1 to 99.5 mV/div (± 1 V range): (±0.2% + 0.5 mV).
For absolute DC accuracy of single-point measurements using offset, add the Offset Accuracy and the DC Balance terms.
Offset Range -
1 to 99.5 mV/div: ± 1 V; Resolution: 25 µV.
100 mV to 0.995 V/div: ± 10 V; Resolution: 250 µV.
1 to 10 V/div: ± 100 V; Resolution: 2.5 mV.
Overdrive Recovery -
1 to 99.5 mV/div: To within ± (0.3% + 0.2 div) within 50 ns from ± 2 Vstep.
100 to 995 mV/div: To within ±1% within 50 ns from ± 20 V step.
1 to 10 V/div: To within ± 1% within 50 ns from ± 200 V step.
Typical Noise (RMS) -
1 to 1.99 mV/div: 0.12 div.
2 to 4.98 mV/div: 0.06 div.
5to 9.95 mV/div: 0.025 div.
10 mV to 10 V/div: 0.014 div.
Input Impedance -
Switchable: 1 Mohm in parallel with 15 pF, or 50 ohm ± 0.5%
Input Coupling Modes -
AC
DC
OFF
AC Coupled Low Frequency -
-3 dB point, driven from 50 ohm source: less than 10 Hz.
Maximum Input Voltage -
1 Mohm mode: 500 V (DC + peak AC)
50 ohm mode: The input impedance is switched to 1 Mohm when the input signal exceeds safe limits. Manual reset by re-selecting 50 ohm input impedance.
The Tektronix P6204 is a high-impedance, miniature, 10X active (FET) probe with identify function. The probe is designed to provide maximum performance with the 11000 Series oscilloscopes and is equipped with the TEKPROBE interface which provides data communication between the probe and oscilloscopes and conveys power from the host instrument. Data contained within the probe informs the instrument of the probe's attenuation, model number, and serial number, and causes the input to automatically terminate with 50 ohms. The ID button on the probe head activates the identify function in the instrument. The ID signal can also set an SRQ (Service Request) flag on an IEEE-488 bus if the instrument if programmed to do so.
The P6204 offers a variable dc offset voltage, which is controlled through the TEKPROBE interface by the hose instrument.
The P6204 has a 1.5-meter signal cable. No power cable is necessary, as power is drawn from the host-instrument plug-in through the TEKPROBE interface.
The miniature probe head of the P6204 is fully compatible with the Tektronix family of miniature probe accessories.
Electrical Characteristics
Attenuation (System): 10X ± 1.5% at dc.
Input Resistance (System): >= 10 Mohm at dc.
Input Capacitance: <= 1.9 pF (1kHz to 1.0 GHz).
Signal Delay: 8.4 ns (± 200 ps).
Bandwidth (Probe only): DC to 1.0 GHz.
Maximum Nondestructive Input Voltage: 40 Vdc continuous.
The P6134 is a subminature, 10X passive probe with ID, designed specifically for use with the Tektronix 11000 Series oscilloscopes. It is fully compatible with the Tektronix family of subminature probe accessories. The P6134 has a 1.5-meter cable.
Electrical Characteristics
Attenuation: 10X ± 1% at dc. (probe installed on 11A32, 11A34.)
Input Resistance (System): 10 Mohm ± 1%.
Input Capacitance: ~11.4 pF.
Compensation Range: 14 pF to 18 pF.
Signal Delay: 6.9 ns (± 100 ps).
System Bandwidth (-3 dB): >= 300 MHz. (probe installed on 11A32)
Aberrations: +4%, -4%, or 6% p-p (in addition to system aberrations).
Maximum Nondestructive Input Voltage: 500 V (dc + peak ac) to 1.3 MHz.
The P6156 (10X) is a DC to 3.5 Ghz, compact size, fast-rise, low input-capacitance passive voltage probe with a constant input resistance over a wide range of frequencies. It is designed for use with the wide-band oscilloscope amplifiers with 50 ohm inputs, such as the Tektronix 11K Series with the 11A71 plug-in. Options are available for 1X, 20X, and 100X attenuation values. The attenuator tips are color coded for proper tip identification. An identify button on the probe head provides the trace identify function and allows control of one or more programmable functions in the 11K series oscilloscopes. The P6516 is equipped with a BNC connector that provides trace identify and digital readout information when used with plug-in units or mainframes which have these features.
This probe can be used with sampling systems by using the appropriate adapters and interconnects. NOTE: At this time readout for the 20X attenuation factor is only available on 11K Series. For use with 7K, 5K, 2400 Series or other oscilloscopes, set the attenuation switch on the P6156 compensation bow for 10X and multiply the scope reading by a factor of 2.
Electrical Characteristics
| Characteristic | 1X | 10X | 20X | 100X |
| Attenuation Tolerance (system) | ±5% | ±3% | ±3% | ±3% |
| Input Resistance (system) | 50 ohm ±5% | 50 ohm ±3% | 1000ohm ±3% | 50 00ohm ±3% |
| Input Capacitance | N/A | <=1pF | <=1pF | <=2.1pF |
| Maximum Continuous Non-Destructive Input Voltage | Scope Max Input Volts | 15 V rms | 22 V rms | 50 V rms |
| Probe Bandwidth | >=1.5GHz | >=3.5GHz | >=3.5GHz | >=1.5GHz |
| Rise Time (probe) | <=300ps | <=100ps | <=100ps | <=233ps |
| Signal Delay | 7.75 ± .05 ns | 7.75 ± .05 ns | 7.75 ± .05 ns | 7.75 ± .05 ns |
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Send questions or comments to mahaney@cs.unc.edu
This Page was created by Jim Mahaney and last updated on August 14, 1997