HP 83483A User Manual

Electrical plug-in module

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User's Guide

HP 83483A, 83484A,B

HP 54751A, 54752A,B

Electrical Plug-In

Module

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Summary of Contents for HP 83483A

Page 1 User's Guide HP 83483A, 83484A,B HP 54751A, 54752A,B Electrical Plug-In Module...
Page 2 HP part number: 83483-90009 and 54751-97010 Printed in USA June 1999 The information contained in this document is subject to change Notice. without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including but not limited to, the implied warranties of merchantability and tness for a particular purpose.
Page 3: Certi Cation
Certication Hewlett-Packard Company certies that this product met its published specications at the time of shipment from the factory. Hewlett-Packard further certies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute's calibration facility, and to the calibration facilities of other International Standards Organization members.
Page 4: Limitation Of Warranty
Warranty This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility designated by Hewlett-Packard.
Page 5 Assistance Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard products. For assistance, contact your nearest Hewlett-Packard Sales and Service Oce. Hewlett-Packard Sales and Service Oces U.S. FIELD OPERATIONS Headquarters California, Northern California, Southern Colorado Georgia Illinois New Jersey Texas EUROPEAN FIELD OPERATIONS...
Page 6 Hewlett-Packard Sales and Service Oces (continued) INTERCON FIELD OPERATIONS Headquarters Australia Canada China Japan Singapore Taiwan...
Page 7: Declaration Of Conformity
Declaration of Conformity...
Page 8 viii...
Page 9: Safety Symbols
Safety Symbols The following safety symbols are used throughout this manual. Familiarize yourself with each of the symbols and its meaning before operating this instrument. caution sign denotes a hazard to the instrument. It calls attention to a C A U T I O N procedure which, if not correctly performed or adhered to, could result in caution damage to or destruction of the instrument.
Page 10: General Safety Considerations
General Safety Considerations Before this instrument is switched on , make sure it has been properly W A R N I N G grounded through the protective conductor of the ac power cable to a socket outlet provided with protective earth contact. Any interruption of the protective (grounding) conductor, inside or outside the instrument, or disconnection of the protective earth terminal can result in personal injury.
Page 11: Table Of Contents
Menu and Key Conventions ....The HP 83483A, 83484A,B and HP 54751A, 54752A,B Electrical Plug-In Module ... . .
Page 12 4. Specications and Characteristics Specications ....Characteristics ....5.
Page 13 Figures 1-1. Front panel of the plug-in module... . . 2-1. Electrical Channel Setup menu....2-2. A typical Cal Status display....2-11 3-1.
Page 14 Contents...
Page 15: The Instrument At A Glance
The Instrument at a Glance...
Page 16 The high bandwidth mode provides high-delity display and measurement of very high-speed waveforms. The HP 83483A or HP 54751A electrical plug-in module provides: User selectable 12.4 or 20 GHz bandwidth 2.5 GHz bandwidth trigger channel 3.5 mm (m) connectors...
Page 17: Ordering Information
Ordering information HP 83483A, 83484A, B and HP 54751A, 54752A, B Service Options Option 0BW Guide Option 0B1 Additional set of user documentation Option 0B0 Deletes the user documentation Option UK6 Measured performance data Optional accessories HP 54006A 6 GHz divider probe...
Page 18: Menu And Key Conventions
Menu and Key Conventions The keys labeled Trigger, Disk, and Run are all examples of front-panel keys. Pressing some front-panel keys accesses menus of functions that are displayed along the right side of the display screen. These menus are called softkey menus.
Page 19 The Instrument at a Glance Menu and Key Conventions value, use the general purpose knob located below the front-panel Measure section.
Page 20: The Hp 83483A, 83484A,B And Hp 54751A, 54752A,B
The HP 83483A, 83484A,B and HP 54751A, 54752A,B Electrical Plug-In Module The electrical plug-in module is one of several plug-in modules available for the HP 83480A, 54750A mainframes. The purpose of the plug-in module The purpose of the plug-in module is to provide measurement channels, including sampling, for the mainframe.
Page 21: Front Panel Of The Plug-In Module
HP 54700 series probes. The front-panel Aux Power connector provides only power to HP 54700 series probes for use as a trigger input. Probe calibration and scaling are not required for a trigger input. Figure 1-1. Front panel of the plug-in module.
Page 22: Getting The Best Performance
You do not need to turn o the mainframe to install or remove the plug-in modules. The plug-in module can be installed in slots 1 and 2 or 3 and 4 on the HP 83480A, 54750A mainframe. The plug-in module will function if it is installed in slots 2 and 3.
Page 23: Trigger
The Instrument at a Glance Trigger The external trigger level range for this plug-in module is 1 V. The trigger source selection follows the slots the plug-in module is installed in. For example, if the plug-in module is installed in slots 1 and 2, then the trigger source is listed as trigger 2.
Page 24 The Instrument at a Glance...
Page 25: Channel Setup Menu
Channel Setup Menu...
Page 26 Channel There are several types of softkeys available. A description of the dierent HP 83480A, 54750A User's softkeys and their functions is provided in the Quick Start Guide supplied with the mainframe.
Page 27: Electrical Channel Setup Menu
Channel Setup Menu Figure 2-1. Electrical Channel Setup menu.
Page 28: Displaying The Channel Setup Menu
Channel Setup Menu Displaying the Channel Setup menu To display the Channel Setup menu, press the key. Channel Display aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa The Display softkey turns the channel display o and on. When the channel display is on, a waveform is displayed for that channel, unless the oset is adjusted so the waveform is clipped o of the display.
Page 29: Nnnnnnnnnnnnnnnnn
500 mV. You can use the knob, arrow keys, or keypad to change the oset setting. The ne mode also works with oset. When an HP 54700-series active probe is used with the plug-in module and is connected to the probe power connector adjacent to the channel input, the oset control adjusts the external scale factor and oset of the hybrid inside the active probe.
Page 30: Nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Channel Setup Menu Bandwidth. . . aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa HP 83483A, 54751A only You can use the Bandwidth function to select either the 12.4 GHz or the 20 GHz bandwidth. HP 83484A,B 54752A,B only You can use the Bandwidth function to select either the 26.5 GHz or the 50 GHz bandwidth.
Page 31: Nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Channel Setup Menu External scale . . . aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa The External Scale function allows you to setup the instrument to use external optical-to-electrical converters or attenuators. Scaling is automatically adjusted to account for the external device. Key Path NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN External scale . . . Channel The Atten Units function lets you select how you want the probe attenuation NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN...
Page 32 Channel Setup Menu NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN The Attenuation function lets you select an attenuation that matches the Attenuation device connected to the instrument. When the attenuation is set correctly, the instrument maintains the current scale factors, if possible. All marker values and voltage or wattage measurements will re ect the actual signal at the input to the external device.
Page 33 Channel Setup Menu The Units function lets you select the unit of measure appended to the NNNNNNNNNNNNNNNNN Units channel scale, oset, trigger level, and vertical measurement values. For the plug-in module, the units are Volts, Amperes, Watts, or unknown. Use Volt for voltage probes, Ampere for current probes, Watt for optical-to-electrical (O/E) converters, and unknown when there is no unit of measure or when the unit of measure is not one of the available choices.
Page 34: Nnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Channel Setup Menu Calibrate aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa The calibrate menu allows you to null out any skew between probes or cables and check the present calibration status of the instrument. Key Path NNNNNNNNNNNNNNNNNNNNNNNNNNNNN Calibrate Channel The Skew function changes the horizontal position of a waveform on the NNNNNNNNNNNNNN Skew display.
Page 35 Channel Setup Menu The Cal Status function displays a screen similar to Figure 2-2. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Cal status Key Path NNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN Calibrate Cal Status Channel Figure 2-2. A typical Cal Status display. This is the current date and time. You can compare this to the last plug-in Current Date module calibration time.
Page 36: Calibration Status
The instrument calibrates to the tip of the probe by setting the probe attenuation to the actual attenuation ratio of the probe. The instrument also automatically compensates for any oset that the probe may introduce. The CAL signal is internally routed to the probe tip for HP probes. Key Path NNNNNNNNNNNNNNNNNNNNNNNNNNNNN...
Page 37: Calibration Overview
Calibration Overview...
Page 38 Proper calibration is critical to measurement accuracy and repeatability. The HP 54750A/83480A and their associated modules and accessories require that both factory and user calibrations be implemented at the recommended intervals in order to perform measurements at their published specications.
Page 39 To maintain specications, periodic recalibrations are necessary. We recommend that the plug-in module be calibrated at an HP service facility every 12 months. Users are encouraged to adjust the calibration cycle based on their particular operating environment or measurement accuracy needs.
Page 40: Factory Mainframe Calibrations
Next to the switch there is a drawing that shows each switch's function and protected position. Refer to the optional HP 83480A, 54750A Service Guide for more details about the mainframe calibration, and the position of the rear-panel memory protect switches.
Page 41: Current Frame 1Temp Condition
Calibration Overview Factory Mainframe Calibrations The temperature change is displayed at the top of the display as shown in the following gure. Figure 3-1. Current Frame 1Temp condition If the listing is greater than C, then the Current Frame 1Temp mainframe should either be calibrated at the current operating temperature or be placed in an ambient air temperature that is within 5 C of the temperature...
Page 42: User Calibrations
User Calibrations The following calibrations can be performed by the user: Plug-in Module Vertical Calibration Dark Calibration Probe Calibration Channel Skew External Scale Electrical channels have calibration procedures for: adjusting timebase skew, for matching propagation delay between channels, probes, cables, and so forth using external probes The input circuits can be damaged by electrostatic discharge (ESD).
Page 43: Plug-In Module Vertical Calibration
Calibration Overview User Calibrations Table 3-3. Miscellaneous User Calibration Summary Calibration What is calibrated Measurements Aected Recommended Interval Key Path Electrical Channel Setup FFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate probe Channel Setup FFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate FFFFFFFFFFFFF Skew Channel Setup FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF External Scale Plug-in Module V ertical Calibration The plug-in module vertical calibration allows the instrument to establish the calibration factors for a specic plug-in when the plug-in is installed in the mainframe.
Page 44: Dark Calibration
Calibration Overview User Calibrations To obtain the best measurement results, it is recommended that a user vertical calibration be performed after every 10 hours of continuous use or if the temperature has changed by greater than 2 C from the previous vertical calibration.
Page 45: Dark Calibration Menu
Calibration Overview User Calibrations If extinction ratio measurements are being made after the vertical scale or the oset has changed. If the line power has been cycled, the dark calibration invokes either the oset zero calibration or plug-in vertical calibration as needed. This increases the time required for the dark calibration to complete.
Page 46: Channel Skew Calibration
50% points. Probe Calibration For active probes such as the HP 54701A, which the instrument can identify through the probe power connector, the instrument automatically adjusts the channel vertical scale factors to the probe's nominal attenuation, even if a probe calibration is not performed.
Page 47: External Scale
The analyzer calibrates to the tip of the probe by setting the probe attenuation to the actual attenuation ratio of the probe. The CAL signal is internally routed to the probe tip for HP active probes. The mainframe's CAL signal is a voltage source, therefore you can let the instrument compensate for the actual characteristics of your probe by letting the instrument calibrate to the tip of the probe.
Page 48: Electrical Channel Calibrate Menu
Calibration Overview User Calibrations Figure 3-3. Electrical Channel Calibrate Menu To calibrate other Since the mainframe's CAL signal is a voltage source, it cannot be used devices to calibrate to the probe tip when the units are set to Ampere, Watt, or Unknown.
Page 49 Calibration Overview User Calibrations External Scale There is an External scale setting which allows the user to enter in an oset value to compensate for gains or losses not associated with the device under test. This feature is useful for adjusting out the eects of devices such as test xtures and attenuators so that the reading on the display gives the measurement value associated with only the actual device under test.
Page 50: Complete Calibration Summary
Complete Calibration Summary Table 3-4. Complete Calibration Summary Calibration What is calibrated Measurements Aected Recommended Interval Key Path Utility FFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate frame Utility FFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate p to p FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF Calibrate Plug-in Shift Meas eye FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF Extinction ratio FFFFFFFFFFFFFFFFFFFFFFFF Dark Cal Electrical Channel Setup FFFFFFFFFFFFFFFFFFFFFFFFFF...
Page 51 Specications and Characteristics...
Page 52 To maintain specications, periodic recalibrations are necessary. We recommend that the plug-in module be calibrated at an HP service facility every 12 months. Users are encouraged to adjust the calibration cycle based on their particular operating environment...
Page 53: Speci Cations
Specications The following are specications used to test the HP 83483A, 83484A,B and the HP 54751A, 54752A,B plug-in modules. Specications are valid after a HP 54701A Active Probe Service Guide 1 hour warm-up period. Refer to the for complete probe specications.
Page 54 Specications and Characteristics Specications HP 83483A and HP 54751A Vertical Specications Transition Time (10%{90%) characteristic, calculated from T=0.35/BW, electrical 12.4 GHz bandwidth 28.2 ps 20 GHz bandwidth 17.5 ps Typical 12.4 GHz 0.25 mV 20 GHz 0.5 mV It is recommended that a user vertical calibration be performed after every 10 hours of continuous use or if the temperature has changed by greater than 2 from the previous vertical calibration.
Page 55 Specications and Characteristics Specications HP 83483A and HP 54751A Vertical Specications (continued)
Page 56 Specications and Characteristics Specications HP 83484A,B and HP 54752A,B Vertical Specications Transition Time (10%{90%) characteristic, calculated from T=0.35/BW, electrical 26.5 GHz bandwidth 13.2 ps 50 GHz bandwidth 7.0 ps Typical 26.5 GHz 0.46 mV 50 GHz 0.92 mV It is recommended that a user vertical calibration be performed after every 10 hours of continuous use or if the temperature has changed by greater than 2 from the previous vertical calibration.
Page 57 Specications and Characteristics Specications HP 83484A,B and HP 54752A,B Vertical Specications (continued) Environmental specications Power requirements Weight...
Page 58 Characteristics The following characteristics are typical for the HP 83483A, 83484A,B and HP 54701A the HP 54751A, 54752A,B electrical plug-in module. See the Active Probe Service Guide for complete probe characteristics. Trigger Input Characteristics Nominal Impedance 50 Input Connector 3.5 mm (m)
Page 59 In Case of Diculty...
Page 60 For complete service information, refer to the optional or the HP 83483A, 54751A Service Guide HP 83484A,B and 54752A,B Service Guide. Electrostatic discharge (ESD) on or near input connectors can damage circuits C A U T I O N inside the instrument.
Page 61 Is the rear-panel line switch set to on? without Will the mainframe power up the plug-in module installed? HP 83480A, If the mainframe still does not power up, refer to the optional 54750A Service Guide or return the mainframe to a qualied service...
Page 62: If The Plug-In Does Not Operate
In Case of Diculty 1. Make the following checks: If the plug-in Is the plug-in module rmly seated in the mainframe slot? does not Are the knurled screws at the bottom of the plug-in module nger-tight? operate Is a trigger signal connected to a trigger input? If other equipment, cables, and connectors are being used with the plug-in module are they connected properly and operating correctly? Review the procedure for the test being performed when the problem...
Page 63 " is still displayed, then the memory contents of the plug-in ~known module are corrupt. DO NOT use this procedure on an HP 83485A or other optical module. It will C A U T I O N destroy the factory optical/electrical calibration factors.
Page 64 HP 83483A, that is beyond the scope of this book. Refer to the optional 54751A Service Guide HP 83484A,B and 54752A,B Service Guide or the HP 83480A, 54750A Service Guide for additional troubleshooting information.
Page 65 If the slot is empty, there is a mainframe hardware problem. Refer to the HP 83480A, 54750A Service Guide If a plug-in is installed in the slot, there is a plug-in module hardware HP 83483A, 54751A Service Guide problem. Refer to the optional HP 83484A,B and 54752A,B Service Guide...
Page 66 In Case of Diculty...
Page 67 Index...
Page 68 Index accessories connection devices, 1-3 optional, 1-3 accuracy performance, 1-8 active probe, 2-5 attenuation range, 2-8 Attenuation softkey, 2-8 attenuator scaling, 2-7 Atten units softkey, 2-7 automatic measurement, 2-4 auxiliary power connector, 1-7 Bandwidth . . . softkey, 2-6 Calibrate probe softkey, 2-12 Calibrate softkey, 2-10 calibration external scale, 3-10...
Page 69 Channel autoscale softkey, 2-6 Channel key, 2-2 characteristics, 4-8 connection devices, 1-3 Current Date message, 2-11 Current Frame 1Temp message, 2-11 customer assistance, v decibel calculation, 2-7 declaration of conformity, vii declaration of conformity , vii description of the plug-in module, 1-2 digital oset, 2-5 Display softkey, 2-4 environmental specications , 4-7...
Page 70 O/E converter calibration, 3-10 oset, 2-4{5, 2-9 Oset softkey, 2-5 optical-to-electrical converter scaling, 2-7 optional accessories, 1-3 options, 1-3 ordering information, 1-3 plug-in characteristics, 4-8 Plug-in message, 2-12 plug-in module description, 1-2 features, 1-6 front panel, 1-7 installation, 1-8 power requirements, 4-7 purpose, 1-6 specications, 4-3{7 troubleshooting, 5-4...
Page 71 technical assistance, v temperature change, 2-11{12 trigger external, 1-9 input characteristics, 4-8 level, 2-9 source, 2-4 troubleshooting, 5-7 typeface conventions, 1-1 Units softkey, 2-5, 2-9 user calibrations, 3-6 vertical calibration, 1-8 measurement, 2-9 scale, 2-4{5, 2-6 specications, 4-3, 4-5 waveform, 2-5 voltage measurement, 2-8 probe, 2-12...

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