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Tektronix P7330, Руководство пользователя

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P7330 3.5 GHz Differential Probe User Manual

1

Getting Started

The P7330 is a high-bandwidth (3.5 GHz) active differential probe
with a miniaturized probe head design. The probe has low circuit
loading, high common-mode rejection, and comes with a variety of
accessories for connecting to surface-mount devices and other
components.

Figure 1: P7330 differential probe featuring the TekConnect Interface

TekConnect Interface

The P7330 probe is powered through a TekConnect Interface
between the probe compensation box and the oscilloscope. The
TekConnect Interface provides a communication path through
contact pins on the host instrument. Power, signal, offset, and probe
characteristic data transfer through the interface.

Содержание P7330

Страница 1: ...0758 04 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summarie...

Страница 2: ...ending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX T...

Страница 3: ...tions 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...

Страница 4: ......

Страница 5: ...t Related Manuals If you need to do a performance verification or make internal adjustments to your probe refer to the P7330 3 5 GHz Differential Probe Service Manual Tektronix part number 071 1057 XX...

Страница 6: ...x com Sales support 1 800 833 9200 select option 1 Service support 1 800 833 9200 select option 2 Technical support Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pac...

Страница 7: ...2 Common Mode Signal Range 12 Differential Mode Signal Range 12 Common Mode Rejection 12 Probing Techniques to Maximize CMRR 13 Input Impedance and Probe Loading 14 Probe Grounding 15 Electrical Effec...

Страница 8: ...ter 13 Figure 6 Using the TwinFoot adapter 13 Figure 7 Typical probe input model 14 Figure 8 Probe ground input 15 Figure 9 Typical effects on a signal using probe tip adapters 16 Figure 10 Simplified...

Страница 9: ...fore disconnecting the probe from the measure ment instrument Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for...

Страница 10: ...atements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard imm...

Страница 11: ...ccessories for connecting to surface mount devices and other components Figure 1 P7330 differential probe featuring the TekConnect Interface TekConnect Interface The P7330 probe is powered through a T...

Страница 12: ...a valid TekConnect device is detected The TekConnect Interface features a spring loaded latch that provides audible and tactile confirmation that a reliable connection has been made to the oscilloscop...

Страница 13: ...gure 3 Figure 3 Probe functional check connections 1 Connect the probe to the oscilloscope 2 Set the oscilloscope to display the probe channel 3 Connect the square pin adapter to the probe tip and con...

Страница 14: ...probe offset set to 0 0 V the oscilloscope display should be at the ground reference 8 Set the oscilloscope volts division to 500 mV 9 Adjust the probe offset The displayed waveform should vary betwee...

Страница 15: ...sories connect to the probe tip through the square pin adapter The ground lead connects to the probe head through a slot in the side of the insulated probe housing WARNING Skin penetration hazard To p...

Страница 16: ...de the adapter are rated for 50 75 insertion cycles with the probe tip Replace the adapter after exceeding these limits to avoid unreliable operation Tektronix part number 016 1885 00 package of 4 Sea...

Страница 17: ...468 00 package of 2 X lead adapter 2 ea The X lead adapter connects between accessories fitted with 0 025 inch pins such as the SMT KlipChip and Micro KlipChip adapters You can use the X lead adapter...

Страница 18: ...16 1879 XX Calibration certificate A certificate of traceable calibration is provided with every instrument shipped Accessory reorder sheet Use the accessory reorder sheet as a quick guide for orderin...

Страница 19: ...d test points for internal probe measurements Tektronix part number 067 0422 00 Probe calibration fixture Use the probe calibration fixture to perform some of the calibration procedures The calibratio...

Страница 20: ...tegrated circuits that are surface mounted Tektronix part number SMK4 package of 4 Calibration software and instructions Use the Optional Applications Software CD that is shipped with host instruments...

Страница 21: ...rical characteristics and access to dense circuitry and must be handled carefully Rough or careless use will likely damage the probe To avoid damaging the probe tips minimize your lateral pressure on...

Страница 22: ...h respect to earth ground without saturating the input circuitry of the probe A common mode voltage that exceeds the common mode signal range may produce an erroneous output waveform even when the dif...

Страница 23: ...rs However some probing tasks are made easier using accessories included with the probe The accessories shown in Figures 5 and 6 achieve a high CMRR by minimizing the distance between the probe head a...

Страница 24: ...gnal sources The greater the source impedances and the higher the signal frequencies the more you must take these factors into account Input 0 1 pF 0 4 pF 0 4 pF 50 k 50 k Ground Input Figure 7 Typica...

Страница 25: ...to a ground reference point only In most applications the common mode impedance to ground is greater than the differential impedance Adding the probe ground lead does not improve the high frequency p...

Страница 26: ...ripples in frequency response These effects increase as the source impedance and the measured waveform risetimes decrease Refer to page 23 for input capacitance specifications when using the variable...

Страница 27: ...disconnecting the probe ground reference lead Differential Measurements Devices designed to make differential measurements avoid the problems posed by single ended systems These devices include a var...

Страница 28: ...ntial amplifier to reject the common mode signal is expressed as the Common Mode Rejection Ratio CMRR The CMRR is the differential mode gain ADM divided by the common mode gain ACM It is expressed eit...

Страница 29: ...Effects on CMRR The lower the input impedance of the probe relative to the source impedance the lower the CMRR See Figure 12 on page 24 Significant differences in the source impedance driving the two...

Страница 30: ...ure 11 Twisting the input leads Extending the Ground Lead Extending the ground lead will have little if any affect on your measurements In most circuits the ground path from the differential source ha...

Страница 31: ...ble 3 describe guaranteed performance within tolerance limits or certain type tested requirements Warranted characteristics that have checks in the Performance Verification section are marked with the...

Страница 32: ...the probe with bare hands at nonoperating temperatures above 70_ C Allow sufficient time for the probe to cool before handling Typical Characteristics Typical characteristics Tables 4 and 5 describe...

Страница 33: ...mode input resistance DC coupled 50 k 2 per side Common mode input capacitance 0 45 pF 100 MHz per side Input impedance See Figure 13 Noise referred to input 35 nV Hz 100 MHz DC Offset Scale Accuracy...

Страница 34: ...in from the 14 dB reference level For example 80 dB CM gain equals 66 dB CMRR Frequency 10 MHz 1 MHz 100 MHz 44 52 60 68 76 84 1 GHz Gain dB Figure 12 Typical common mode gain The graph in Figure 13 r...

Страница 35: ...31 8 mm 3 60 in 1 725 in 1 25 in Dimensions probe head 59 mm 7 7 mm 5 1 mm 2 30 in 0 30 in 0 20 in Dimensions output cable 1 2 m 47 in Unit weight probe only 223 g 7 5 oz 31 8 mm 1 250 in 43 8 mm 1 7...

Страница 36: ...eristics Nominal characteristics Table 6 describe guaranteed traits but the traits do not have tolerance limits Table 6 Nominal electrical characteristics Input configuration Differential two inputs a...

Страница 37: ...ior surfaces of the probe with a dry lint free cloth or a soft bristle brush If dirt remains use a soft cloth or swab dampened with a 75 isopropyl alcohol solution A swab is useful for cleaning narrow...

Страница 38: ...pplications CD that is included with Tektronix oscilloscopes featuring the TekConnect interface Preparation for Shipment If the original packaging is unfit for use or not available use the following p...

Страница 39: ...onix instruments are sometimes made to accommo date improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is impo...

Страница 40: ...ystem This parts list is indented to show the relationship between items The following example is of the indentation system used in the Description column 1 2 3 4 5 Name Description Assembly and or Co...

Страница 41: ...Appendix C Replaceable Parts P7330 3 5 GHz Differential Probe User Manual 31 1 2 3 Figure 15 P7330 replaceable parts...

Страница 42: ...ronix part no Serial no Effective Dscont Qty 12345 name description Mfr code Mfr part no 15 1 010 0641 04 1 PROBE ASSEMBLY SERVICE REPLACEMENT SERIALIZED 80009 010 0641 04 2 200 4236 00 1 COVER PROBE...

Страница 43: ...Appendix C Replaceable Parts P7330 3 5 GHz Differential Probe User Manual 33 1 2 3 4 5 6 7 8 9 10 Figure 16 P7330 standard accessories...

Страница 44: ...0 1 LEAD GROUND GROUND LEAD PKG OF 2 196 3469 00 4 016 1785 00 1 ADAPTER DIFFERENTIAL PROBE PKG OF 4 80009 016 1785 00 5 016 1884 00 1 ACCESSORY KIT SQUARE PIN ADAPTER PKG OF 4 060D9 016 1884 00 6 016...

Страница 45: ...Appendix C Replaceable Parts P7330 3 5 GHz Differential Probe User Manual 35 1 2 3 4 Figure 17 P7330 optional accessories...

Страница 46: ...nt Qty 12345 name description Mfr code Mfr part no OPTIONAL ACCESSORIES 17 1 067 0422 00 1 CALIBRATION FIXTURE ASSY ECB TO TOP P7000 SERIES 80009 067 0422 00 2 067 0419 00 1 PROBE CALIBRATION FIXTURE...

Страница 47: ...E BLVD SUITE 120 VANCOUVER WA 98661 26805 M A COM OMNI SPECTRA INC MICROWAVE CONNECTOR DIV 140 4TH AVE WALTHAM MA 02254 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR PO BOX 500 BEAVERTON OR 97077 0001 TK...

Страница 48: ...Appendix C Replaceable Parts P7330 3 5 GHz Differential Probe User Manual 38...

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