Tektronix TDP3500 Technical Reference Download Page 31

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Performance Veri

cation

22.

Using the test system rise time (t

) that you measured in step 13, and the test system and probe rise time (t

s+p

) that you

measured in step 21, calculate the probe-only rise time using the formula shown.

Example:

This completes the performance veri

cation.

TDP3500 Technical Reference

Summary of Contents for TDP3500

Page 1: ...TDP3500 3 5 GHz Differential Probe ZZZ Technical Reference xx Revision A www tektronix com 071 2297 00 ...

Page 2: ...d and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support In North America call 1 800 833 ...

Page 3: ...s duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or ...

Page 4: ......

Page 5: ...cs 3 Nominal Characteristics 6 Probe Tip Adapter Specifications 7 Performance Verification 11 Required Equipment 11 Special Adapters 12 Preparation 14 DC Attenuation Accuracy 15 Differential Signal Range 17 Rise Time 18 Maintenance 23 Inspection and Cleaning 23 Replacement Parts 23 Preparation for Shipment 23 TDP3500 Technical Reference i ...

Page 6: ...Table of Contents ii TDP3500 Technical Reference ...

Page 7: ...r must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Connect the probe reference lead to ea...

Page 8: ...ces that could result in damage to this product or other property Symbols and Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product The following symbol s may appear o...

Page 9: ...ace Preface This is the Technical Reference Manual for the TDP3500 differential probe This manual provides specifications and performance verification procedures for the probe TDP3500 Technical Reference v ...

Page 10: ...Preface vi TDP3500 Technical Reference ...

Page 11: ...50 Ω and a bandwidth of 1 GHz The probe must have a warm up period of at least 20 minutes and be in an environment that does not exceed the limits described See Table 1 The probe calibration and Autozero routines should be run on the host instrument before verifying the warranted probe specifications Specifications for the TDP3500 differential probe fall into three categories warranted typical and...

Page 12: ...aximum non destructive input voltage between signal and common of the same channel 15 V DC peak AC DC attenuation accuracy 2 of input Bandwidth probe only DC to 3 5 GHz Rise time probe only 10 90 20 C to 30 C 140 ps Common mode rejection ratio 60 dB at DC 55 dB at 1 MHz 45 dB at 30 MHz 25 dB at 1 GHz Temperature Operating 0 to 40 C 32 F to 104 F Nonoperating 40 to 71 C 40 F to 159 F 1 Humidity Ope...

Page 13: ...resistance 50 kΩ Differential input capacitance 0 3 pF at 10 MHz Common mode input capacitance 0 45 pF per side at 100 MHz Offset accuracy 10 mV Differential offset range 1 V Common mode rejection ratio See Figure 3 on page 4 System noise Referred to probe input 35 nV Hz 100 MHz Input impedance See Figure 4 on page 5 Propagation delay 5 4 ns 2 ns from probe tip to output Figure 1 Typical bandwidth...

Page 14: ...Typical Characteristics Figure 2 Typical rise time Figure 3 Typical Common Mode Rejection Ratio 4 TDP3500 Technical Reference ...

Page 15: ... connection 0 63 mm 0 025 in square pin sockets on 2 54 mm 0 100 in centers Dimensions control box 117 mm 41 mm 29 mm 4 6 in 1 6 in 1 15 in Dimensions probe head 86 mm 11 mm 8 9 mm 3 4 in 0 45 in 0 35 in Dimensions output cable 1 22 m 48 in Unit weight probe only 144 5 g 5 1 oz Figure 5 Probe dimensions TDP3500 Technical Reference 5 ...

Page 16: ...uaranteed traits but the traits do not have tolerance limits Table 4 Nominal electrical characteristics Input configuration Differential two inputs and with case ground Output coupling DC coupling Voltage range 2 V Termination Terminate output into 50 Ω 6 TDP3500 Technical Reference ...

Page 17: ...y connecting the probe directly to square pins on your circuit However as test points are not always as convenient these adapters make taking measurements easier while maintaining the best signal fidelity NOTE All adapter specifications are typical unless otherwise indicated Variable Spacing Adapter Tektronix part number 016 1885 xx Bandwidth 3 5 GHz 10 90 Rise time 110 ps This adapter has adjusta...

Page 18: ...e Pin Adapter Tektronix part number 016 1884 xx Bandwidth 3 3 GHz 10 90 Rise time 110 ps Use this adapter to provide easy access to square pin test points that you frequently check or to other probe accessories 8 TDP3500 Technical Reference ...

Page 19: ...ndwidth 4 3 GHz Solder wire 3 8 GHz 10 Ω resistor 3 7 GHz 20 Ω resistor 10 90 Rise time 124 ps Solder wire 131 ps 10 Ω resistor 140 ps 20 Ω resistor Use this adapter on test points that you frequently check that do not have square pins or other convenient connections Solder the wire or resistor leads that come with the kit to your test points CAUTION To prevent short circuits solder and dress the ...

Page 20: ...ocket ends plug onto square pins component leads and the MicroCKT Test Tip adapters included with the probe MicroCKT Test Tips Tektronix part number 206 0569 xx Usable Bandwidth 100 MHz Calculated rise time 3 5 ns Use the MicroCKT Test Tips with the Y lead adapters Due to the length of these adapters they are only recommended for DC and low frequency measurements 10 TDP3500 Technical Reference ...

Page 21: ...250 mV step 100 ps rise time Tektronix 80E04 TekVPI caIibration fixture Optional probe accessory Tektronix part number 067 1701 xx Probe calibration fixture Optional probe accessory Tektronix part number 067 0419 xx BNC to probe tip adapter Optional probe accessory Tektronix part number 067 1734 xx BNC Male to SMA Female adapter As per description Tektronix part number 015 0572 xx Calibrated DC vo...

Page 22: ...ture Tektronix part number 067 1701 xx connects between the host instrument and the probe under test See Figure 6 An SMA connector on the rear of the fixture provides access to the probe output signal for performance verification measurements 1 SMA connector for probe output measurements 2 TekVPI socket for probe under test 3 BNC connection used for some tests Figure 6 TekVPI calibration fixture 1...

Page 23: ...eck the rise time specification of the probe See Figure 7 A probe positioner can be helpful to keep the probe in contact with the fixture 1 SMA connectors for input output signals and terminations 2 Common Mode CM test points 3 Differential Mode DM test points Figure 7 Probe calibration fixture connections TDP3500 Technical Reference 13 ...

Page 24: ...the DMM input 8 Connect the probe to the TekVPI Calibration Fixture 9 Connect the Square Pin adapter and Y lead adapter to the probe Observe proper polarity red to black to 10 Connect the MicroCKT test tips to the Y lead adapter 11 Set the vertical offset to 0 V Check that the offset is set to zero before performing each test unless instructed otherwise Figure 8 Preliminary test setup 12 Turn on t...

Page 25: ...be is then used to measure the same voltages and then a comparison calculation is made Preparation 1 Set the vertical offset to 0 V 2 Connect the MicroCKT test tips to the DC source Observe proper polarity red to black to 3 Connect a second DMM to the DC source Figure 9 Setup for differential mode tests TDP3500 Technical Reference 15 ...

Page 26: ...icroCKT test tips or the Y lead adapter Record the actual voltage as Vin2 7 Record the output voltage as Vout2 8 Calculate the attenuation using the values from the measurements as follows Attenuation Vin1 Vin2 Vout1 Vout2 Example 1 4 V 1 4 V 0 28 V 0 28 V 2 8 V 0 56 V 5 0 9 Verify that the attenuation is in the range of 4 9 to 5 1 Record the results in the test record Leave the probe connected fo...

Page 27: ... source to 2 V 100 mV and record the actual voltage as Vin 5 Measure and record the output voltage as Vout 6 Calculate attenuation as Vin Vout Voffset 7 Verify that the attenuation is in the range of 4 75 to 5 25 Record the results in the test record 8 Reverse the polarity of the input voltage for the following measurements Swap the MicroCKT test tips or the Y lead adapter 9 Measure and record the...

Page 28: ...ilable on 80E04 sampling heads CAUTION To prevent damage use care when working with SMA connectors support equipment to avoid mechanical strain on the connectors and when tightening connections use a torque wrench to 7 5 in lbs Test System Rise Time 1 Connect the 80E04 sampling head to Channel 1 of the sampling oscilloscope See Figure 11 2 Connect the 80E0X sampling head to Channel 8 of the sampli...

Page 29: ...a red light next to the SELECT channel button indicating that TDR is activated for that channel Figure 12 TDR parameter setup 10 Turn off the display for Channel 1 so that only Channel 8 is shown on screen 11 Adjust the oscilloscope horizontal and vertical position controls to display a signal similar to that shown See Figure 11 12 Set the oscilloscope horizontal scale to 50 ps div and center the ...

Page 30: ...TE The following measurements are taken with the sampling oscilloscope The TekVPI oscilloscope only provides power and offset to the probe 19 On the sampling oscilloscope expand the horizontal scale to locate the step edge set the vertical scale to 10 mV div and adjust horizontal range to 200 ps div while maintaining the edge view For a more stable measurement display turn on averaging 20 Adjust t...

Page 31: ...e time ts that you measured in step 13 and the test system and probe rise time ts p that you measured in step 21 calculate the probe only rise time using the formula shown Example This completes the performance verification TDP3500 Technical Reference 21 ...

Page 32: ..._ Date of Calibration _____________Technician _____________ Performance test Minimum Measured Calculated Maximum DC attenuation accuracy 4 9 _____________ 5 1 Differential signal range standard polarity with connections reversed 4 75 4 75 _____________ _____________ 5 25 5 25 Rise time TDP3500 at 3 5 GHz 140 ps _____________ N A 22 TDP3500 Technical Reference ...

Page 33: ...isopropyl alcohol solution as a cleanser and rinse with deionized water Replacement Parts Due to the sophisticated design of these differential probes there are no user replaceable parts within the probes Refer to the Quick Start User Manual for a list of replaceable accessories for your probe If your probe does not meet the specifications tested in the Performance Verification you can send the pr...

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