Tektronix P6330 - Manuals

Table of Contents ii P6330 3.5 GHz Differential Probe Instruction Manual Specifications 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warranted Characteristics 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Characteristics 26 . . . . . . . . . ....

Table of Contents P6330 3.5 GHz Differential Probe Instruction Manual iii List of Figures Figure 1: P6330 differential probe 1 . . . . . . . . . . . . . . . . . . . . . . Figure 2: Input connector of TEKPROBE interface 10 . . . . . . . . . Figure 3: Using the variable spacing adapter 12 . . . . . . ...

P6330 3.5 GHz Differential Probe Instruction Manual v General Safety Summary Review the following safety precautions to avoid injury and preventdamage to this product or any products connected to it. To avoidpotential hazards, use this product only as specified. To Avoid Fire or Personal Injury Conn...

General Safety Summary vi P6330 3.5 GHz Differential Probe Instruction Manual Safety Terms and Symbols Terms in This Manual. These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements id...

P6330 3.5 GHz Differential Probe Instruction Manual vii Service Safety Summary Only qualified personnel should perform service procedures. Readthis Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or...

Service Safety Summary viii P6330 3.5 GHz Differential Probe Instruction Manual Contacting Tektronix Phone 1-800-833-9200 * Address Tektronix, Inc.Department or name (if known)14200 SW Karl Braun DriveP.O. Box 500Beaverton, OR 97077USA Web site www.tektronix.com Salessupport 1-800-833-9200, select o...

P6330 3.5 GHz Differential Probe Instruction Manual 1 Product Features and Accessories The P6330 is a high-bandwidth (3.5 GHz) active differential probewith a miniaturized probe head design. The probe has low circuitloading, high common-mode rejection, and comes with a variety ofaccessories for conn...

Product Features and Accessories 2 P6330 3.5 GHz Differential Probe Instruction Manual Options The following options are available when ordering the P6330 probe: H Option D1 -- Calibration Data H Option C3 -- 3 years Calibration Service H Option D3 -- 3 years Calibration Data (requires Option C3) H ...

Product Features and Accessories P6330 3.5 GHz Differential Probe Instruction Manual 3 Features and Standard Accessories Table 1 shows the features and standard accessories of the P6330differential probe. Table 1: P6330 features and standard accessories Feature/Accessory Description TEKPROBE interfa...

Product Features and Accessories P6330 3.5 GHz Differential Probe Instruction Manual 7 Optional Accessories Table 2 shows the optional accessories that you can order for theP6330 differential probe. Table 2: Optional accessories Accessory Description Release tool. Use for opening the compensation bo...

P6330 3.5 GHz Differential Probe Instruction Manual 9 Operating Basics This section discusses operating considerations and probingtechniques. For more detailed information about differentialmeasurements and common-mode rejection ratio (CMRR), see the Reference section on page 19. The P6330 probe des...

Operating Basics 10 P6330 3.5 GHz Differential Probe Instruction Manual Figure 2: Input connector of TEKPROBE interface Instruments with the TEKPROBE Interface (Tektronix TDS 400, 500, 600,and 700 Series Oscilloscopes) On instruments that have the TEKPROBE interface, simply connectthe probe to the i...

Operating Basics P6330 3.5 GHz Differential Probe Instruction Manual 11 Maximum Input Voltage The maximum input voltage is the maximum voltage to ground thatthe inputs can withstand without damaging the input circuitry of theprobe. CAUTION. To avoid damaging the inputs of the P6330 differential prob...

Operating Basics 12 P6330 3.5 GHz Differential Probe Instruction Manual Probing Techniques to Maximize CMRR The common-mode rejection of the probe is highest when the probeis applied directly to the circuit, without using adapters. However,some probing tasks are made easier using accessories include...

Operating Basics P6330 3.5 GHz Differential Probe Instruction Manual 13 Electrical Effects of Accessories The probe tip accessories included with your probe help connect todifferent types of components. While these accessories makeconnections easier, be aware that the adapter you choose may affectth...

Operating Basics 14 P6330 3.5 GHz Differential Probe Instruction Manual Input Impedance and Probe Loading When you connect the probe inputs to a circuit, you are introducing anew resistance, capacitance, and inductance into the circuit. Eachinput of the P6330 differential probe has a characteristic ...

Operating Basics P6330 3.5 GHz Differential Probe Instruction Manual 15 Probe Grounding In addition to the plus and minus inputs on the probe head, there isalso a ground (common) input. The ground lead slides into the notchon the side of the probe. See Figure 7. + -- Ground Figure 7: Probe ground in...

P6330 3.5 GHz Differential Probe Instruction Manual 17 Functional Check After installing the probe on the oscilloscope, a functional checkmay be performed using the PROBE COMPENSATION connectionson the front panel of the oscilloscope. See Figure 8. Figure 8: Probe functional check connections 1. Con...

P6330 3.5 GHz Differential Probe Instruction Manual 19 Reference This section contains important reference information aboutdifferential measurements and how to increase the accuracy of yourmeasurements. Problems with Single-Ended Measurements While suitable in many applications, single-ended measur...

Reference 20 P6330 3.5 GHz Differential Probe Instruction Manual V out V DM V CM + -- + + Differential mode Common mode Figure 9: Simplified model of a differential amplifier Common-Mode Rejection Ratio In reality, differential amplifiers cannot reject all of the common-mode signal. The ability of a...

Reference P6330 3.5 GHz Differential Probe Instruction Manual 21 A quick way to assess the magnitude of CMRR error when thecommon-mode signal is not sinusoidal is to connect both leads to thesame point in the circuit. The oscilloscope will display only thecommon-mode component which is not fully rej...

Reference 22 P6330 3.5 GHz Differential Probe Instruction Manual Square pinadapter Figure 10: Twisting the input leads Extending the Ground Lead Extending the ground lead will have little, if any, affect on yourmeasurements. In most circuits, the ground path from the differentialsource has sufficien...

Reference P6330 3.5 GHz Differential Probe Instruction Manual 23 Effect of Extending the Output Cable As the frequency of a signal increases, current flow concentrates atthe outer edges of the conductor, effectively increasing theimpedance. This effect is known as skin loss. The P6330 probecontains ...

P6330 3.5 GHz Differential Probe Instruction Manual 25 Specifications The specifications in Tables 3 through 6 apply to a P6330 probeinstalled on a TDS8000 oscilloscope. When the probe is used withanother oscilloscope, the oscilloscope must have an input impedanceof 50 Ω . The probe must have a warm...

Specifications 26 P6330 3.5 GHz Differential Probe Instruction Manual Table 3: Warranted electrical characteristics (Cont.) Characteristic Description Humidity Operating: 0 --90% RH, tested at+ 30 to + 40 _ C (+ 68 to + 104 _ F) Nonoperating: 0 --90% RH, tested at+ 30 to + 60 _ C (+ 68 to + 140 _ F)...

Specifications 28 P6330 3.5 GHz Differential Probe Instruction Manual Figure 11 shows the typical common-mode gain of the probe. TheCMRR can be approximated by subtracting the common-mode gainfrom the -- 14 dB reference level. For example, -- 80 dB CM gainequals +66 dB CMRR. Frequency 10 MHz 1 MHz 1...

Specifications P6330 3.5 GHz Differential Probe Instruction Manual 29 Table 5: Typical mechanical characteristics Dimensions, input connection 2.5 mm (0.99 in) pins on2.54 mm (0.100 in) centers Dimensions, control box 82 mm × 28 mm × 23 mm (3.2 in × 1.1 in × 0.9 in) Dimensions, probe head 59 mm × 7....

Specifications 30 P6330 3.5 GHz Differential Probe Instruction Manual Nominal Characteristics Nominal characteristics (Table 6) describe guaranteed traits, but thetraits do not have tolerance limits. Table 6: Nominal electrical characteristics Input configuration Differential (two inputs, + and -- )...

The following servicing instructions are for use only byqualified personnel. To avoid injury, do not perform anyservicing other than that stated in the operating instructionsunless you are qualified to do so. Refer to all safetysummaries before performing any service. WARNING

P6330 3.5 GHz Differential Probe Instruction Manual 33 Theory of Operation There are no user replaceable parts within the probe or thecompensation box; however, this theory of operation is provided toassist you in isolating failures to either the probe or the hostoscilloscope. Refer to Figure 14 for...

Theory of Operation 34 P6330 3.5 GHz Differential Probe Instruction Manual Probe Head and Cable Assembly The probe head assembly contains an active amplifier circuit thatbuffers and amplifies the input signal. The amplifier receives powerand an offset level from the compensation box assembly via the...

Theory of Operation P6330 3.5 GHz Differential Probe Instruction Manual 35 TEKPROBE Interface The TEKPROBE interface provides a communication path betweenthe probe and the oscilloscope. Contact pins provide power, signal,offset, and data transfer for the probe identification EEPROM. Figure 15 shows ...

P6330 3.5 GHz Differential Probe Instruction Manual 37 Performance Verification Use the following procedures to verify specifications of the P6330probe. Before beginning these procedures, refer to page 46 andphotocopy the test record, and use it to record the performance testresults. The recommended...

Performance Verification 38 P6330 3.5 GHz Differential Probe Instruction Manual Table 7: Equipment required for performance verification (Cont.) Item description Recommended example Performance requirement Precision coaxial cable Male-to-Male SMA, 1 nsdelay 015-0562-00 Adapter SMA Female-to-Female 0...

Performance Verification P6330 3.5 GHz Differential Probe Instruction Manual 39 Probe Calibration Fixture Some of the procedures in this manual use a probe calibrationfixture, Tektronix part number 067-0419-00. The calibration fixture provides a means to test the probe for bothcommon mode and differ...

Performance Verification 40 P6330 3.5 GHz Differential Probe Instruction Manual 5. Using the fine position and/or pressure adjust, maneuver theprobe so that the pins contact the CM or DM test points,depending on which test you are performing. (See Figure 17.) Common mode Differential mode Figure 17:...

Performance Verification P6330 3.5 GHz Differential Probe Instruction Manual 41 Output Offset Voltage 1. Connect the probe as shown in Figure 18. 1103 CH 1 input CH 1 output Digital multimeter Female BNC-to-malebanana adapter 50 Ω precision terminator 50 Ω BNC cable Square pinadapter Y-lead adapter ...

Performance Verification P6330 3.5 GHz Differential Probe Instruction Manual 43 Rise Time This procedure verifies that the probe meets rise time specifications.Two rise times are measured; the test system, and the test systemwith the probe included. The probe rise time is calculated using thetwo mea...

Performance Verification 46 P6330 3.5 GHz Differential Probe Instruction Manual Test record Probe Model:Serial Number:Certificate Number:Temperature:RH %:Date of Calibration:Technician: Performance test Minimum Incoming Outgoing Maximum Output offset voltage -- 10 mV ________ ________ + 10 mV DC gai...

P6330 3.5 GHz Differential Probe Instruction Manual 47 Adjustments The P6330 has 3 internal controls: offset zero, offset range, andDC CMRR. These controls should only be adjusted after a probeperformance verification and functional check has been performedon the oscilloscope, and only if a check fa...

Adjustments 48 P6330 3.5 GHz Differential Probe Instruction Manual Removing the Compensation Box Cover Follow these steps to open the compensation box. 1. Press the optional release tool pins into the compensation boxcover catches and gently lift the cover off a small distance. Referto Figure 23. 2....

Adjustments 50 P6330 3.5 GHz Differential Probe Instruction Manual Offset Zero and DC CMRR Use the following procedures to adjust the offset zero and DC CMRRcharacteristics of the probe. Due to the interaction of the twoadjustments, it may be necessary to repeat the procedure to optimizethe adjustme...

Adjustments P6330 3.5 GHz Differential Probe Instruction Manual 51 -- + Power supply 1103 CH 1 input CH 1 output Female BNC-to-malebanana adapter 50 Ω precision terminator 50 Ω BNC cable Y-lead adapter Black ( -- ) Digital multimeter Square pin adapter P6330 Red (+) Digital multimeter KlipChip adapt...

Adjustments P6330 3.5 GHz Differential Probe Instruction Manual 53 Offset Range Use this procedure to adjust the offset range of the probe. The offsetzero of the probe must be measured before making any adjustment tothe offset range. The offset zero voltage that you measure in the Zero Offset proced...

Adjustments 54 P6330 3.5 GHz Differential Probe Instruction Manual 6. Adjust Offset Range for a DMM reading equal to the value set in the Zero Offset procedure (step 4 on page 50), ± 3 mV. Refer to Figure 24 on page 49 for the location of the offset rangeadjustment. This completes the adjustments to...

P6330 3.5 GHz Differential Probe Instruction Manual 55 Maintenance This section details the maintenance and repair procedures for theP6330 differential probe. Replacing TEKPROBE Interface Pins TEKPROBE interface pins can stick and fail to make contact aftertime. Periodically check to see that each o...

Maintenance 56 P6330 3.5 GHz Differential Probe Instruction Manual Removing and Replacing the TEKPROBE Interface Collar To remove the TEKPROBE interface collar, firmly grasp thecompensation box body with one hand and the TEKPROBE interfacecollar with the other hand. Firmly pull the interface collar ...

Maintenance P6330 3.5 GHz Differential Probe Instruction Manual 57 Inspection and Cleaning To prevent damage to probe materials, avoid using chemicals thatcontain benzine, benzene, toluene, xylene, acetone, or similarsolvents. Do not immerse the probe or use abrasive cleaners. Dirt may be removed wi...

P6330 3.5 GHz Differential Probe Instruction Manual 59 Replaceable Parts This section contains a list of replaceable parts for the P6330differential probe. Use this list to identify and order replacementparts. Parts Ordering Information Replacement parts are available from or through your localTektr...

Replaceable Parts 60 P6330 3.5 GHz Differential Probe Instruction Manual Using the Replaceable Parts List The tabular information in the Replaceable Parts List is arranged forquick retrieval. Understanding the structure and features of the listwill help you find the information you need for ordering...